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Formic Acid 85 Nrov Lub Npe: Methanoic Acid Formula: HCOOH CAS NO.: 64-18-6 UN No.: 1779 Cov Khoom Muaj Teeb Meem Qib: 8 Kev faib tawm: Carboxylic acid

Formic Acid yog dab tsi

 

Formic acid, nrog rau cov tshuaj formula HCOOH, yog qhov yooj yim carboxylic acid. Nws tau txais nws lub npe los ntawm nws lub peev xwm los tsim cov ntsaum, vim nws yog ib feem ntawm qhov sting ntawm hluav taws ntsaum thiab qee qhov wasps. Hauv kev lag luam, formic acid yog tsim los ntawm cov nplai loj los ntawm carbonylation ntawm methanol. Nws muaj qhov txawv ntawm vinegar zoo li tsw thiab yog miscible nrog dej. Vim nws acidic zog, nws pom siv raws li ib tug preservative thiab ib tug catalyst nyob rau hauv ntau yam tshuaj tiv thaiv. Nws kuj tseem ua lub luag haujlwm hauv kev ua cov tawv nqaij thiab ua haujlwm ua cov kuab tshuaj hauv qee qhov kev siv. Hauv chav kuaj, formic acid muaj nuj nqis rau nws lub peev xwm ua kom yaj ntau yam tshuaj, suav nrog hlau thiab polymers. Kev ntsuas kev nyab xeeb yog qhov tseem ceeb thaum tuav cov tshuaj formic acid, vim nws tuaj yeem ua rau tawv nqaij khaus thiab teeb meem ua pa yog tias tsis tau ceev faj kom raug.

Qhov zoo ntawm Formic Acid

 

Preservative Properties
Formic acid yog dav siv los ua preservative hauv kev lag luam zaub mov. Nws cov khoom siv tshuaj tua kab mob thiab tshuaj tua kab mob pab tiv thaiv kev loj hlob ntawm cov kab mob microorganisms, ncua lub txee lub neej ntawm cov khoom noj. Nws yog feem ntau siv nyob rau hauv kev khaws cia ntawm silage, ib hom fodder ua los ntawm fermented ntsuab nroj tsuag, los xyuas kom meej nws cov zaub mov muaj nqis thiab palatability.

 

Zog Cia
Formic acid tau tshwm sim los ua lub peev xwm khaws cia nruab nrab vim nws lub zog siab ceev thiab yooj yim cia. Nws tuaj yeem siv rau hauv cov roj hlwb los tsim hluav taws xob, muab cov khoom siv huv thiab muaj txiaj ntsig zoo rau fossil fuels. Nws siv nyob rau hauv lub zog cia daim ntawv thov pab txo cov pa roj carbon monoxide emissions thiab txhawb kev ruaj ntseg zog.

 

Kev Tshawb Fawb Thiab Kev Txhim Kho
Formic acid plays lub luag haujlwm tseem ceeb hauv kev tshawb fawb thiab kev loj hlob. Nws yog siv los ua ib qho reagent nyob rau hauv ntau yam tshuaj tiv thaiv los ua ke cov tebchaw tshiab thiab cov ntaub ntawv. Nws cov khoom tshwj xeeb ua rau nws muaj txiaj ntsig zoo rau cov kws tshawb fawb thiab cov kws tshawb fawb tshawb nrhiav thaj chaw tshiab ntawm chemistry thiab cov khoom siv science.

 

Nqi-zoo
Kev tsim cov formic acid yog tus nqi-zoo, ua rau nws xaiv kev lag luam rau ntau yam kev siv. Nws txoj kev siv dav dav thoob plaws ntau qhov kev lag luam ua rau nws pheej yig thiab muaj, ua rau nws muaj nqi sib tw rau kev siv ntau yam kev tsim thiab txheej txheem.

Vim Li Cas Xaiv Peb

 

Siab Zoo
Peb cov khoom yog tsim los yog ua raws li tus txheej txheem siab heev, siv cov ntaub ntawv zoo tshaj plaws thiab cov txheej txheem tsim khoom.

 

Pab neeg tshaj lij
Peb cov kws tshaj lij pab pawg sib koom tes thiab sib txuas lus zoo nrog ib leeg, thiab mob siab rau muab cov txiaj ntsig zoo. Peb muaj peev xwm los daws cov teeb meem nyuaj thiab cov haujlwm uas xav tau peb cov kws tshaj lij thiab kev paub dhau los.

 

Khoom siv Advanced
Lub tshuab, cuab yeej lossis cov cuab yeej tsim los nrog cov thev naus laus zis thiab kev ua haujlwm kom ua tiav cov haujlwm tshwj xeeb nrog ntau dua precision, efficiency thiab kev ntseeg tau.

 

Customized Services
Peb nkag siab tias txhua tus neeg siv khoom muaj cov kev xav tau tsim tshwj xeeb. Tias yog vim li cas peb muab cov kev xaiv customization kom haum rau koj cov kev xav tau tshwj xeeb.

 

Tus nqi sib tw
Peb muab cov khoom lag luam zoo dua lossis kev pabcuam ntawm tus nqi sib npaug. Yog li ntawd peb muaj kev loj hlob thiab loyal cov neeg siv khoom.

 

24h Online Service
Peb sim thiab teb rau txhua qhov kev txhawj xeeb hauv 24 teev thiab peb pab pawg yeej ib txwm muab koj pov tseg thaum muaj xwm txheej ceev.

 
Hom ntawm Formic Acid
 
01/

Technical Qib Formic Acid
Qhov no yog hom formic acid ntau tshaj plaws, feem ntau pom muaj nyob rau hauv ntau ntawm 85% mus rau 93%. Nws yog tsim los ntawm kev lag luam nplai los ntawm carbonylation ntawm methanol siv carbon monoxide ua reactant. Kev kawm qib formic acid yog dav siv hauv kev ua liaj ua teb raws li kev khaws cia hauv silage thiab hauv textiles rau dyeing thiab tanning tawv. Nws txoj kev xaiv qib qhia tau hais tias nws muaj me me impurities tab sis txaus rau feem ntau cov ntawv thov kev lag luam.

02/

Tshwj xeeb Qib Formic Acid
Cov qib tshwj xeeb ntawm formic acid ua raws li cov kev xav tau tshwj xeeb hauv kev lag luam, xws li kev lag luam hluav taws xob uas nws tuaj yeem siv rau hauv cov neeg tsim khoom photoresist. Cov qib no yog tsim los ua kom tau raws li qhov tshwj xeeb purity, feem ntau nrog cov hlau ions tsawg heev, cov khoom seem, thiab cov khoom tsis huv. Lawv kuj tau siv hauv kev tsim tshuaj, txheej txheem polymerization, thiab ua cov tshuaj tiv thaiv corrosion hauv cov dej ua haujlwm hlau.

03/

Laboratory Qib Formic Acid
Siv feem ntau hauv cov chaw tshawb fawb, chav kuaj qib formic acid yog siab dua purity, feem ntau nyob ib ncig ntawm 99%. Nws yog qhov zoo dua rau cov txheej txheem tshuaj ntsuam xyuas, xws li chromatography thiab spectroscopy, qhov twg yog qhov tseeb thiab tsis muaj kab mob reagents tsim nyog. Qib no kuj tseem siv rau hauv kev npaj cov buffers thiab ua cov kuab tshuaj hauv cov tshuaj syntheses.

04/

Khoom noj khoom haus qib Formic Acid
Khoom noj khoom haus-qib formic acid yog tsim nyob rau hauv nruj raws li cov qauv kev nyab xeeb khoom noj khoom haus. Nws yog siv raws li ib tug preservative nyob rau hauv pickles, jams, thiab lwm yam acidified zaub mov. Cov kua qaub pab tswj cov kab mob tsis zoo uas tsis tas yuav hloov pauv qhov saj lossis kev ntxhib los mos ntawm cov khoom noj. Nws tus lej e yog e238, thiab nws tau tswj hwm kev siv khoom noj thiab khoom noj thoob ntiaj teb.

05/

Hloov kho Formic Acid
Hloov kho formic acids yog tsim los ntawm kev kho cov kua qaub lub zog los txhim kho nws cov kev ua tau zoo hauv kev siv tshwj xeeb. Cov kev hloov kho no tuaj yeem suav nrog cov tshuaj tua kab mob, cov tshuaj tua kab mob, lossis kev sib ntxiv ntawm lwm cov tshuaj los txhim kho cov kua qaub ua haujlwm zoo li cov tshuaj tiv thaiv, hnyav, lossis tshuaj tua kab. Piv txwv li, formic acid blends nrog urea yog siv los ua qeeb-tso nitrogen chiv uas tseem tswj cov av ph.

06/

Recycled Formic Acid
Nrog nce ib puag ncig kev nco qab, rov ua dua formic acid tau txais kev pom zoo. Nws yog los ntawm cov kwj deg, xws li cov pa roj carbon dioxide uas tsim thaum lub sij hawm fermentation. Cov co2 ntes tau tom qab ntawd ua rau methanol los tsim cov kua qaub, tsim kom muaj lub voj voog ruaj khov. Txoj kev tshuaj ntsuab ntsuab no txo ​​qis kev siv cov peev txheej nkauj xwb thiab txo cov pa roj carbon hneev taw cuam tshuam nrog formic acid ntau lawm.

Yuav khaws Formic Acid li cas
 

Container Materials Considerations
Cov khoom ntawm lub thawv yuav tsum sib haum nrog formic acid. Polyethylene thiab polypropylene yog inert thiab tsis hnov ​​​​mob nrog formic acid, ua rau lawv xaiv zoo heev. Txawm li cas los xij, cov thawv uas ua los ntawm polystyrene yuav tsum zam vim tias formic acid tuaj yeem o tuaj yeem ua rau cov yas no.

 

Reseal Tightly
Tom qab siv, xyuas kom meej tias lub thawv ntim tau kaw kom nruj kom tsis txhob raug huab cua, uas tuaj yeem ua rau evaporation lossis paug. Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov chaw soj nstuam uas yuav tsum tau ntsuas qhov tseeb.

 

Txias cia txias txias
Khaws formic acid nyob rau hauv ib qho chaw txias, qhov zoo tshaj plaws nyob rau hauv chav tsev kub los yog hauv qab no, kom txo tau qhov kev pheej hmoo ntawm evaporation thiab ua rau kom tsis txhob muaj kev cuam tshuam nrog cov khoom ntim. Tsis txhob cia nws nyob ze qhov chaw ntawm cov cua sov lossis hluav taws kub.

85 Formic Acid CAS 64-18-6

 

Formic Acid 85 CAS 64-18-6

Tsis txhob pom qhov kaj
Kev raug rau lub teeb tuaj yeem degrade formic acid, yog li nws yuav tsum tau khaws cia rau hauv qhov chaw tsaus lossis hauv cov thawv xim amber uas thaiv lub teeb.

 

Sib cais los ntawm lwm yam tshuaj
Khaws cov formic acid cais tawm ntawm cov khoom siv tsis sib xws xws li cov khoom muaj zog oxidizing, alkalis, thiab cov khoom siv organic. Khaws cia rau hauv thaj chaw tshwj xeeb kom deb ntawm cov khoom siv hauv tsev kom tiv thaiv kev sib tsoo los yog sib kis.

 

Txaus qhov cua
Xyuas kom meej tias qhov chaw cia yog qhov cua zoo kom tawg cov pa taws uas yuav khiav tawm ntawm lub thawv, txawm hais tias formic acid tsis tshua muaj hluav taws xob ntau dua li lwm cov kua qaub.

 

Kev ntsuas kev nyab xeeb
Cov cuab yeej tiv thaiv tus kheej (ppe) xws li hnab looj tes, tsom iav, thiab cov tsho hauv chav kuaj yuav tsum hnav thaum tuav cov tshuaj formic acid. Khaws rau hauv qhov chaw ruaj ntseg uas tsis tuaj yeem nkag mus rau cov menyuam yaus thiab cov neeg ua haujlwm tsis raug cai.

Kev siv ntawm Formic Acid

 

 

Cov ntawv thov kev lag luam
Hauv kev lag luam tawv, formic acid ua haujlwm tseem ceeb hauv cov txheej txheem liming, pab tshem tawm cov plaub hau thiab lwm yam proteins los ntawm cov tsiaj nkaum. Nws lub peev xwm los rhuav tshem cov protein ua rau nws ua tus neeg sawv cev zoo hauv cov kauj ruam ntawm cov tawv nqaij. Tsis tas li ntawd, formic acid yog siv los ua tus neeg sawv cev denaturing rau ethanol, ua rau nws tsis haum rau kev noj thaum khaws cia nws cov txiaj ntsig hauv kev lag luam.

 

Kev siv Agricultural
Hauv kev ua liaj ua teb, formic acid yog siv los ua cov khoom noj hauv tsiaj txhu, tshwj xeeb tshaj yog nyob rau hauv silage, tiv thaiv spoilage thiab tswj cov khoom noj muaj txiaj ntsig. Nws ua los ntawm kev txo qis ph ntawm silage, tsim kom muaj ib puag ncig tsis haum rau cov kab mob spoilage. Tsis tas li ntawd, formic acid yog siv los tswj cov kab tsuag, tshwj xeeb tshaj yog cov kab nuv ntses rau cov ntsaum thiab lwm yam kab, leveraging nws toxicity rau cov tsiaj no.

 

Environmental And Green Chemistry
Raws li cov tshuaj carbon-neutral, formic acid yog suav hais tias yog ib puag ncig tus phooj ywg hnyav. Nws yog siv nyob rau hauv qhov chaw ntawm cov tshuaj solvents nyob rau hauv ntau yam txheej txheem, xws li cov extraction ntawm bioactive compounds los ntawm cov nroj tsuag. Tsis tas li ntawd, formic acid yog koom nrog hauv kev tsim cov roj hlwb, ua haujlwm ua hydrogen carrier thiab lub zog cia nruab nrab. Hauv cov ntawv thov no, nws ua lub luag haujlwm tseem ceeb hauv cov thev naus laus zis huv huv, qhia txog nws qhov tseem ceeb hauv kev hloov pauv mus rau kev coj ua kom ruaj khov.

 

Kev Tshawb Fawb Thiab Chaw Ua Haujlwm
Hauv kev tshawb fawb tshawb fawb thiab kev soj ntsuam kuaj, formic acid yog ua hauj lwm raws li ib tug reagent thiab hnyav. Nws yog siv nyob rau hauv huab hwm coj spectrometry raws li ib tug mobile theem additive, txhim khu cov ionization ntawm cov qauv thiab kev txhim kho nrhiav peptides thiab proteins. Nws lub peev xwm los hloov cov qauv ntawm cov protein ua rau nws muaj txiaj ntsig hauv kev tshawb fawb txog proteomics thiab biochemistry. Ntxiv mus, formic acid ua hauj lwm raws li ib tug tsis tivthaiv nyob rau hauv ntau yam kev soj ntsuam raws tu qauv, muab qhov tsim nyog ph tej yam kev mob rau enzymatic cov tshuaj tiv thaiv thiab lwm yam biochemical txheej txheem.

 

Kev Kho Mob Thiab Pharmaceutical Industries
Formic acid muaj kev siv hauv tshuaj thiab tshuaj, feem ntau yog denaturant thiab preservative. Nws yog siv rau hauv kev khaws cia ntawm cov kab mob lom thiab ua cov khoom xyaw hauv qee cov tshuaj formulations los tiv thaiv microbial paug. Tsis tas li ntawd, formic acid yog koom nrog hauv kev sib txuas ntawm cov tshuaj sib txuas, ua cov tshuaj reactant lossis nruab nrab hauv kev tsim cov tshuaj.

 

Hlau Ua Thiab Corrosion Inhibition
Hauv kev ua haujlwm hlau, formic acid yog siv rau pickling, tu, thiab passivating stainless hlau nto. Nws tshem tawm cov nplais hlau oxide thiab lwm yam impurities yam tsis muaj kev cuam tshuam rau cov hlau nws tus kheej. Tsis tas li ntawd, formic acid tau muab tso rau hauv cov tshuaj tiv thaiv corrosion, tiv thaiv cov hlau los ntawm oxidative degradation, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj acidic mob me ntsis.

 
Kev ceev faj thaum siv Formic Acid

Qhov cua
Xyuas kom qhov chaw ua haujlwm yog qhov cua zoo. Siv cov pa tso pa hauv zos, xws li lub fume hood, kom tsis txhob muaj cov pa phem. Kev ua pa kom zoo yuav pab cuam tshuam cov pa acidic thiab txo qhov kev pheej hmoo ntawm kev nqus pa.

 

tuav
Kho formic acid nrog kev saib xyuas. Tsis txhob kov ncaj qha rau ntawm daim tawv nqaij thiab qhov muag vim nws tuaj yeem ua rau kub hnyiab thiab khaus heev. Tsis txhob noj, haus, lossis haus luam yeeb hauv thaj chaw uas siv cov tshuaj formic acid los yog khaws cia.

 

Txau thiab ntxuav
Nyob rau hauv cov ntaub ntawv ntawm spills, sai sai tshem tawm cov formic acid uas los rau hauv kev sib cuag nrog cov chaw. Hnav cov ppe uas tsim nyog, siv cov khoom siv tsis yog xim hlau spilling (vim cov hlau yuav hnov ​​​​mob nrog formic acid), thiab neutralize qhov nchuav nrog lub hauv paus zoo li sodium bicarbonate ua ntej pov tseg.

 

Cia
Khaws cov formic acid nyob rau hauv nws lub thawv qub los yog ib lub thawv uas muaj cov tshuaj tiv thaiv zoo. Khaws rau hauv qhov chaw txias, qhov cua zoo, kom deb ntawm cov khoom siv tsis sib xws xws li oxidizers thiab hauv paus.

 

Kos npe
Kom meej meej sau cov thawv ntim ntawm formic acid thiab khaws cia rau hauv thaj chaw uas tsim nyog muaj kev phom sij, qhia tias muaj cov khoom phom sij.

 
Kuv Yuav Xaiv Txoj Cai Formic Acid li cas
Purity xav tau

Txiav txim siab qib purity xav tau rau koj daim ntawv thov. Yog tias formic acid yuav tsum tau siv rau hauv kev lag luam tshuaj, khaws cia zaub mov, lossis tshuaj chemistry, cov qib purity siab (feem ntau siab dua 98%) yog qhov tsim nyog. Rau cov txheej txheem kev lag luam xws li tawv tanning lossis hlau pickling, cov qib kev purity xws li 85% mus rau 93% yuav txaus.

Qib specifications

Nkag siab qhov tshwj xeeb ntawm cov qib sib txawv ntawm formic acid. Cov qib kuaj yog tsim los rau kev siv tshuaj ntsuam xyuas thiab yuav tsum ua raws li cov txheej txheem nruj rau cov kab mob thiab cov kuab tshuaj. Khoom noj khoom haus-qib formic acid yuav tsum ua raws li cov cai tswj kev nyab xeeb khoom noj, thaum qib kev lag luam tuaj yeem zam qee yam impurities raws li daim ntawv thov.

Nqe thiab zoo

Ntsuas tus nqi piv rau cov txiaj ntsig ntawm formic acid rau koj daim ntawv thov. Ntau dua purity thiab zoo feem ntau tuaj ntawm tus nqi siab dua, tab sis nws yuav tsim nyog rau cov ntawv thov tseem ceeb.

Daim ntawv thov tshwj xeeb xav tau

Xav txog cov kev xav tau tshwj xeeb ntawm daim ntawv thov, xws li kev xav tau formic acid hauv cov tshuaj npaj siv, lossis yog tias nws yuav tsum tau diluted lossis hloov kho ua ntej siv. Qee daim ntawv thov yuav xav tau formic acid sib xyaw nrog cov tshuaj ntxiv uas txhim kho kev ua haujlwm.

Kev tsim cov txheej txheem ntawm Formic Acid

 

Formic acid, qhov yooj yim tshaj plaws carboxylic acid, muaj ntau yam kev lag luam thiab kev siv hauv tsev, suav nrog kev khaws cia, cov kuab tshuaj, thiab ib qho nruab nrab hauv cov tshuaj syntheses. Nws txoj kev tsim khoom tuaj yeem muab faib ua ob hom tseem ceeb: tsoos industrial synthesis thiab cov khoom siv roj ntsha. Cov txheej txheem kev lag luam feem ntau ntawm kev tsim cov formic acid suav nrog carbonylation ntawm methanol. Carbon Monoxide thiab Methanol Reaction: Methanol (CH3OH) reacts nrog carbon monoxide (CO) los tsim formic acid (HCOOH). Cov tshuaj tiv thaiv yog exothermic thiab ua tiav los ntawm kev tsim ntawm rhodium lossis cobalt carboxylate complex, uas pab txhawb kev hloov pauv ntawm methanol rau hauv formic acid. Cov txheej txheem carbonylation yog ua nyob rau hauv kev kub ntxhov (feem ntau siab dua 30 bar) thiab kub me ntsis (nyob ib ncig ntawm 100 degree). Kev xaiv ntawm catalyst - txawm tias rhodium lossis cobalt - cuam tshuam rau kev xaiv thiab tawm los ntawm formic acid tsim. Rhodium-based catalysts yuav xaiv ntau dua tab sis kim dua, thaum cobalt-based catalysts pheej yig dua tab sis tuaj yeem ua rau cov khoom tsim tawm. Tau ntau xyoo, cov txheej txheem carbonylation tau ua kom zoo dua los txhim kho kev ua haujlwm thiab tawm los. Cov txheej txheem xws li siv cov catalysts txhawb, optimizing reactor tsim, thiab tswj cov tshuaj tiv thaiv tsis tau ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov txheej txheem. Tsis ntev los no, tau muaj kev txaus siab rau bio-raws li txoj kev tsim khoom rau formic acid, uas tau tsav los ntawm kev xav kom muaj cov txheej txheem tsim tshuaj lom neeg ntau dua. Qee cov kab mob thiab archaea tuaj yeem tsim cov tshuaj formic acid ua cov khoom lag luam metabolic thaum lawv loj hlob. Cov kab mob no tuaj yeem hloov kho caj ces lossis xaiv rau lawv lub peev xwm los tsim cov tshuaj formic acid zoo dua, lossis lawv tuaj yeem cog rau ntawm cov substrates tshwj xeeb los txhim kho formic acid yield.

Dab tsi yog cov Cheebtsam ntawm Formic Acid

 

 

Cov pab pawg carboxyl muaj cov pa roj carbon atom ob zaug sib txuas rau cov pa oxygen atom thiab ib qho kev sib koom ua ke rau ib qho thib ob oxygen atom nrog ib khub dawb ntawm electrons, ua rau nws muaj peev xwm ntawm hydrogen bonding. Cov pab pawg no yog lub luag haujlwm rau ntau yam ntawm lub cev thiab tshuaj lom neeg cov yam ntxwv ntawm formic acid, nrog rau nws cov acidity, hnyav zog, thiab reactivity nyob rau hauv cov tshuaj tiv thaiv. Lub xub ntiag ntawm pawg hydroxyl (-OH) txuas ncaj qha mus rau carbonyl carbon yog qhov txhais tau tias formic acid li cov kua qaub. Cov hydrocarbon ib feem ntawm formic acid yog methyl pawg, muaj xws li ib tug carbon atom ib leeg-bonded rau ib hydrogen atom. Cov qauv yooj yim no txhawb nqa tag nrho qhov yooj yim ntawm formic acid piv rau ntau cov carboxylic acids nyuaj. Cov pab pawg methyl tsis cuam tshuam qhov acidic ntawm formic acid; es, nws muab cov qauv yooj yim raws li cov pawg carboxyl txuas nrog. Tshaj li cov txheej txheem tseem ceeb no, formic acid tuaj yeem nyob ua ib qho dimer lossis polymer nyob rau hauv qee yam mob. Hauv daim ntawv dimeric, ob lub formic acid molecules txuas nrog hydrogen daim ntawv cog lus ntawm pawg carboxyl, tsim cov qauv cyclic anhydride. Lub koom haum no tuaj yeem cuam tshuam rau lub cev ntawm formic acid, xws li nws cov ntsiab lus kub thiab viscosity. Thaum formic acid yog yaj nyob rau hauv dej, nws dissociates rau hauv lub formate ion (HCOO^-) thiab ib tug proton (H^+). Lub formate ion muaj ib pab pawg carbonyl (C=O) sib txuas rau methyl pawg (CH3). Nyob rau hauv dilute aqueous daws, qhov sib npaug no feem ntau nyob rau sab laug, txhais tau hais tias tsuas yog ib feem me me ntawm formic acid molecules dissociate rau hauv ions. Txawm li cas los xij, txawm tias nyob rau hauv nws daim ntawv tsis sib xws, formic acid tuaj yeem pub cov proton, nthuav tawm cov cwj pwm acidic. Nyob rau hauv cov nqe lus ntawm nws cov qauv hluav taws xob, formic acid muaj ib tug sigma daim ntawv cog lus (ib daim ntawv cog lus) ntawm cov pa roj carbon thiab oxygen atoms nyob rau hauv pawg carboxyl thiab ib tug pi daim ntawv cog lus (ob daim ntawv cog lus) ntawm cov pa roj carbon thiab oxygen atoms nyob rau hauv lub carbonyl pawg. Lub hydroxyl oxygen atom muaj ib khub ntawm electrons uas tuaj yeem koom nrog hauv hydrogen bonding, ua rau cov kua qaub cuam tshuam nrog lwm cov molecules, suav nrog dej thiab lwm yam kuab tshuaj.

 
Dab tsi yog pH ntawm Formic Acid?

Cov pH ntsuas ntsuas cov kua qaub los yog cov ntsiab lus yooj yim npaum li cas ntawm qhov ntsuas ntawm 0 mus rau 14. PH ntawm 7 yog suav tias yog nruab nrab, thaum cov nqi qis dua 7 qhia acidity thiab qhov tseem ceeb tshaj 7 qhia alkalinity. Formic acid muaj pH uas zoo hauv qab 7, qhia tias nws muaj zog acidic xwm.Qhov tseeb pH ntawm formic acid tuaj yeem sib txawv nyob ntawm qhov concentration ntawm cov tshuaj thiab qhov kub thiab txias. Txawm li cas los xij, rau 10% aqueous tov ntawm formic acid ntawm chav tsev kub, pH feem ntau yog nyob ib ncig ntawm 2.75. Qhov no ua rau cov kua qaub formic acid tsis muaj zog piv rau lwm cov kua qaub, xws li hydrochloric acid lossis sulfuric acid, uas muaj pH qis dua. Lub acidity ntawm formic acid tshwm sim los ntawm lub xub ntiag ntawm carboxyl pawg (-COOH) nyob rau hauv nws cov qauv. Cov pab pawg no tuaj yeem pub ib qho proton (H +) rau dej, uas ua rau tsim cov ions (HCOO-) thiab hydronium ions (H3O +), uas ua rau cov acidity ntawm cov tshuaj. Qhov sib npaug ntawm undissociated formic acid thiab nws cov ions txiav txim siab pH ntawm cov tshuaj. Cov pH ntawm formic acid yog qhov tseem ceeb vim tias nws cuam tshuam rau nws tus cwj pwm thiab kev ua haujlwm ntawm ob qho tib si hauv kev lag luam thiab chaw kuaj mob. Piv txwv li, pH tuaj yeem cuam tshuam tus nqi thiab cov txheej txheem ntawm kev cuam tshuam nrog formic acid, nrog rau kev solubility thiab ruaj khov ntawm cov tshuaj hauv cov tshuaj formic acid. Hauv cov ntawv thov kev lag luam, formic acid feem ntau yog siv los ua catalyst lossis reactant hauv cov txheej txheem tshuaj. Cov pH ntawm cov tshuaj formic acid tuaj yeem cuam tshuam cov txiaj ntsig thiab purity ntawm cov khoom, nrog rau kev ua haujlwm ntawm cov tshuaj tiv thaiv. Yog li ntawd, nws yog ib qho tseem ceeb kom ua tib zoo tswj cov pH ntawm formic acid daws hauv cov txheej txheem kev lag luam.

 
Puas yog Formic Acid Evaporate?

Tus nqi ntawm evaporation ntawm formic acid nyob ntawm ntau yam, nrog rau qhov kub thiab txias, av noo, airflow, thiab thaj tsam ntawm cov kua uas raug huab cua. Nyob rau ntawm qhov kub siab dua, formic acid molecules tau txais ntau lub zog kinetic, ua rau kom ceev evaporation tus nqi. Conversely, qis kub txo lub kinetic zog ntawm cov molecules, slowing down lub evaporation txheej txheem. Humidity kuj plays lub luag haujlwm hauv evaporation ntawm formic acid. Nyob rau hauv ib puag ncig uas muaj cov av noo siab, twb muaj cov dej vapor molecules ntau dua nyob rau hauv cov huab cua, uas tuaj yeem txo qhov tshwm sim ntawm formic acid molecules khiav mus rau saum huab cua. Conversely, nyob rau hauv qhuav tej yam kev mob, muaj tsawg dej vapor molecules sib tw rau qhov chaw nyob rau hauv cov huab cua, cia formic acid kom evaporate yooj yim dua. Airflow tuaj yeem cuam tshuam rau tus nqi evaporation ntawm formic acid. Nyob rau hauv tseem huab cua, txheej ntawm huab cua tam sim ntawd saum cov kua nto yuav saturated nrog formic acid vapor, tsim ib tug ciam txheej uas slows tus nqi ntawm evaporation. Txawm li cas los xij, thaum muaj huab cua zoo nyob rau saum npoo ntawm cov kua, cov ciam teb txheej no tau ua tshiab tas li, tso cai rau ntau cov formic acid molecules kom dim hauv huab cua. Qhov chaw saum npoo yog lwm yam uas cuam tshuam rau evaporation tus nqi ntawm formic acid. Ib cheeb tsam loj dua nthuav tawm cov kua ntau dua rau saum huab cua, muab ntau lub sijhawm rau formic acid molecules kom evaporate. Hloov pauv, thaj chaw me me txwv qhov raug cov kua rau saum huab cua, ua kom cov txheej txheem evaporation qeeb.

Formic Acid Cwj Pwm Li Cas Ua Qhov Ua Kom Zoo?

 

 

Raws li cov kuab tshuaj acidic, formic acid nthuav tawm lub peev xwm los protonate ntau lub tebchaw, ua rau nws muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov uas hloov pauv proton tau txais txiaj ntsig. Piv txwv li, hauv peptide daim ntawv qhia, formic acid feem ntau yog siv los txiav tawm cov tshuaj tiv thaiv los ntawm protonating cov amino pawg ntawm peptides, yog li halting ntxiv deamination. Tsis tas li ntawd, nws cov acidic xwm tso cai rau formic acid los ua ib tug catalyst nyob rau hauv tej yam organic tshuaj, xws li esterification ntawm cawv nrog carboxylic acids. Ib qho ntawm cov cwj pwm tseem ceeb ntawm formic acid ua cov kuab tshuaj yog nws cov polarity nruab nrab. Qhov no ua rau nws cov kuab tshuaj zoo heev rau ob qho tib si polar thiab nonpolar tebchaw, muab qhov sib npaug uas tsis tas yuav ua tiav nrog ntau cov polar lossis nonpolar cov kuab tshuaj. Piv txwv li, formic acid feem ntau ua hauj lwm hauv cov kua chromatography, tshwj xeeb tshaj yog nyob rau hauv reversed-theem high-performance kua chromatography (RP-HPLC), qhov twg nws yuav siv tau raws li ib tug mobile theem tivthaiv los txhim kho kev sib cais ntawm cov tebchaw raws li lawv polarity. Tsis tas li ntawd, formic acid qhov viscosity tsawg dua piv rau lwm cov aqueous acids pab txhawb rau nws cov txiaj ntsig ua cov kuab tshuaj. Nws lub peev xwm los ntub cov chaw ntub dej thiab nkag mus rau hauv qhov pores ua rau nws muaj txiaj ntsig hauv cov txheej txheem uas yuav tsum tau kho los yog tu, xws li semiconductor wafer tu lossis tshem tawm cov kab mob ntawm cov hlau. Lub zog hnyav ntawm formic acid kuj tseem txhim kho los ntawm nws qhov kub qis ntawm 100.8 degree. Qhov no tso cai rau kom yooj yim evaporation ntawm cov kuab tshuaj nyob rau hauv me me tej yam kev mob, uas yog zoo nyob rau hauv daim ntawv thov qhov twg rov qab cov kua los yog purification los ntawm hnyav tshem tawm yog xav tau. Ntxiv mus, formic acid lub volatility enables nws yuav siv tau nyob rau hauv vapor theem txheej txheem, nthuav nws cov nqi tshaj li ib txwm ua kua-theem daim ntaub ntawv.

 
Peb lub Hoobkas

Xiamen Ditai Chemicals Co., Ltd yog lub tuam txhab kev lag luam tshuaj nyob hauv Suav teb. Specializing deal thiab export ntau yam zoo tshuaj txij li thaum 1997. Cov khoom muaj xws li kev lag luam tshuaj, Tsiaj pub additive, Khoom noj khoom haus additive, Agrochemical, Fertilizer, tshuaj, dej kho mob thiab Minerals. Peb pab pawg tswj hwm muaj txog 20 xyoo ntawm kev sib koom ua ke ua tau raws li qhov xav tau ntawm cov neeg siv khoom. Peb txaus siab rau peb cov tshuaj zoo thiab cov kev pabcuam tau pom zoo los ntawm cov neeg siv khoom thoob ntiaj teb. Xiamen Ditai Chemicals Co., Ltd yog lub koom haum ISO9001: 2008.

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Daim ntawv pov thawj

 

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FAQ

Q: Formic acid yog dab tsi?

A: Formic acid yog qhov yooj yim carboxylic acid nrog cov tshuaj formula HCOOH. Nws tshwm sim nyob rau hauv ntau yam khoom noj thiab kuj yog synthesized industrially rau ntau yam kev siv.

Q: Qhov twg yog formic acid pom lawm?

A: Formic acid muaj nyob rau hauv venom ntawm ntsaum, muv, wasps, thiab nab, li no nws lub npe muab los ntawm "formica," lo lus Latin rau ntsaum. Nws kuj muaj nyob rau hauv qee cov txiv hmab txiv ntoo, zaub, thiab tawv ntoo ntawm tsob ntoo.

Q: Yuav ua li cas yog formic acid tsim?

A: Industrially, formic acid yog tsim los ntawm oxidation ntawm methanol. Lwm txoj hauv kev suav nrog thermal decomposition ntawm cov qauv lossis catalytic oxidation ntawm carbon monoxide.

Q: Dab tsi yog kev siv ntawm formic acid?

A: Formic acid yog siv rau hauv kev ua tawv tawv, ua khoom noj khoom haus, hauv kev tsim cov dye, hauv kev sib txuas ntawm lwm cov tshuaj, ua cov kuab tshuaj, thiab kho cov hlau nto.

Q: Dab tsi yog pH ntawm formic acid?

A: Formic acid muaj pH tsawg, feem ntau nyob ib ncig ntawm 2.75 rau 10% aqueous tov. Nws ua raws li cov kua qaub tsis muaj zog thaum yaj hauv dej.

Q: Puas yog formic acid flammable?

A: Formic acid tsis yog flammable nws tus kheej tab sis tuaj yeem tsim cov khoom tawg nrog huab cua thaum nyob hauv lub xeev muaj zog. Nws yuav tsum tau muab khaws cia thiab ua tib zoo saib xyuas kom tsis txhob raug tshav kub lossis qhov hluav taws kub.

Q: Yuav ua li cas yog tias formic acid nkag rau ntawm daim tawv nqaij?

A: Kev raug rau formic acid tuaj yeem ua rau tawv nqaij khaus. Kev ntxuav tam sim nrog xab npum thiab dej yog pom zoo kom tsis txhob muaj kev cuam tshuam ntev.

Q: Kuv yuav ua li cas thiaj li pov tseg formic acid pov tseg?

A: Cov khib nyiab formic acid yuav tsum tau nruab nrab nrog lub hauv paus thiab muab pov tseg raws li cov cai hauv zos. Nws yog ib qho tseem ceeb kom sab laj nrog ib puag ncig kev noj qab haus huv thiab kev nyab xeeb cov kws tshaj lij rau cov txheej txheem pov tseg kom raug.

Q: Yam khoom siv tiv thaiv tus kheej (PPE) yuav tsum hnav thaum tuav formic acid?

A: looj tsom iav dub, hnab looj tes, lub tsho tiv no, thiab tej zaum yuav tsum hnav daim npog ntsej muag thaum tuav cov tshuaj formic acid los tiv thaiv kev sib cuag ntawm daim tawv nqaij thiab txaws rau lub qhov muag.

Q: Dab tsi yog qhov kub ntawm formic acid?

A: Lub boiling point ntawm formic acid yog 100.8 degrees Celsius ntawm atmospheric siab. Nws nyob ntawm me ntsis ntawm purity ntawm cov kua qaub thiab muaj lwm cov kuab tshuaj.

Q: Puas yog formic acid muaj zog acid?

A: Tsis yog, formic acid yog suav tias yog cov kua qaub tsis muaj zog. Nws dissociates ib nrab hauv cov tshuaj aqueous, tso tsuas yog ib feem me me ntawm hydrogen ions piv rau cov acids muaj zog xws li hydrochloric acid.

Q: Formic acid puas tuaj yeem khaws cia nrog lwm yam tshuaj?

A: Kev saib xyuas yuav tsum tau ua thaum khaws cia formic acid nrog lwm cov tshuaj. Nws yuav tsum tsis txhob muab khaws cia nrog cov khoom tsis sib xws xws li muaj zog oxidizers. Nco ntsoov sab laj nrog Cov Ntaub Ntawv Kev Nyab Xeeb Cov Ntaub Ntawv (MSDS) rau cov lus qhia tshwj xeeb khaws cia.

Q: Dab tsi yog qhov cuam tshuam ib puag ncig ntawm formic acid?

A: Formic acid yog qhov zoo rau ib puag ncig piv rau ntau lwm yam tshuaj. Nws degrades sai sai hauv ib puag ncig thiab tsis paub txog bioaccumulate hauv cov kab mob.

Q: Formic acid puas tuaj yeem siv tau?

A: Recycling formic acid nyob ntawm cov ntsiab lus ntawm nws siv. Cov txheej txheem muaj qee zaum rov qab thiab rov siv cov formic acid. Txawm li cas los xij, kev rov ua dua tshiab yuav tsis yog ib txwm muaj txiaj ntsig zoo los yog kev ua tau zoo.

Q: Dab tsi yog qhov txawv ntawm acetic acid thiab formic acid?

A: Acetic acid (CH3COOH) yog qhov yooj yim thib ob carboxylic acid thiab paub zoo tias yog vinegar. Tsis zoo li formic acid, acetic acid muaj ob lub carbon atoms hauv nws cov qauv. Ob leeg acids yog siv los ua preservatives thiab nyob rau hauv chemical synthesis tab sis muaj cov khoom sib txawv thiab siv.

Q: Puas yog formic acid corrosive?

A: Formic acid yog corrosive, tshwj xeeb tshaj yog rau cov hlau. Nws tuaj yeem tawm tsam hlau, hlau, tooj liab, thiab tooj dag, ua rau corrosion. Kev khaws cia thiab tuav hauv cov thawv inert yog tsim nyog los tiv thaiv kev puas tsuaj.

Q: Ua li cas formic acid cuam tshuam rau lub neej hauv dej?

A: Formic acid tuaj yeem muaj tshuaj lom rau cov kab mob hauv dej, nyob ntawm qhov concentration thiab lub sijhawm raug. Nws yog ib qho tseem ceeb los tswj cov khib nyiab uas muaj formic acid kom tsim nyog los tiv thaiv kev puas tsuaj rau ecosystems.

Q: Puas tuaj yeem formic acid thauj los ntawm huab cua?

A: Kev thauj cov formic acid los ntawm huab cua yog ua raws li cov cai thiab kev faib tawm raws li cov khoom siv phom sij. Nws yuav tsum tau ntim, cim, thiab sau npe raws li International Air Transport Association (IATA) Cov Cai Tswj Kev Nyab Xeeb.

Q: Dab tsi yog kev tiv thaiv kev nyab xeeb rau kev tuav formic acid?

A: Kev tuav formic acid yuav tsum tau ua tib zoo ua raws li cov txheej txheem kev nyab xeeb. Qhov no suav nrog kev siv PPE, ua haujlwm hauv qhov chaw uas muaj cua zoo, zam kev nqus lossis nqus tau, thiab muaj cov phiaj xwm tawm tsam.

Q: Yuav ua li cas yog formic acid tswj?

A: Cov kev cai ntawm formic acid txawv ntawm lub teb chaws. Hauv Tebchaws Meskas, nws tau tswj hwm los ntawm cov koomhaum xws li Lub Chaw Tiv Thaiv Ib Cheeb Tsam (EPA) thiab Kev Tswj Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv (OSHA). Cov koom haum zoo sib xws hauv lwm lub tebchaws tswj hwm kev tsim khoom, kev thauj mus los, kev khaws cia, thiab siv cov formic acid.

Xav tias dawb yuav formic acid ntawm tus nqi pheej yig los ntawm peb lub hoobkas. Raws li ib qho ntawm cov kws tshaj lij formic acid tuam ntxhab thiab cov muag khoom, peb ib txwm nyob ntawm koj qhov kev pabcuam.

Xa kev nug