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Benzoic acid ua zaub mov preservative yog ib qho tseem ceeb precursor rau synthesis ntawm ntau lwm yam organic tshuaj. Nws yog dawb granule, flake los yog crystalline hmoov, odorless los yog ze li ntawm odorless. Soluble nyob rau hauv dej, ethanol, ether thiab lwm yam organic solvents. Cov vapor ntawm benzoic acid muaj qhov ua kom khaus khaus, tuaj yeem ua rau hnoos tom qab nqus pa. Benzoic acid yog ib qho tsis muaj zog acid, muaj zog tshaj li cov fatty acids, susceptible oxidation.

Benzoic Acid yog dab tsi

 

Benzoic acid yog ib qho uas muaj ntxhiab carboxylic acid dav siv los ua cov khoom noj khoom haus thiab tshuaj pleev ib ce. Nws tshwm sim nyob rau hauv ntau cov nroj tsuag thiab tuaj yeem ua hluavtaws. Cov kua qaub ua cov dawb crystals uas yog me ntsis soluble hauv dej tab sis yaj hauv cawv thiab lwm cov kuab tshuaj organic. Nyob rau hauv nws daim ntawv ntsev, benzoate, nws inhibits kev loj hlob ntawm pwm, poov xab, thiab ib co kab mob los ntawm disrupting lawv spore germination thiab cell phab ntsa synthesis. Benzoic acid ua haujlwm zoo ntawm cov kua qaub pH thiab feem ntau siv nrog rau lwm cov tshuaj tiv thaiv kom nthuav dav nws cov tshuaj tiv thaiv kab mob. Txawm hais tias nws muaj kev siv ntau, muaj kev txhawj xeeb txog nws txoj kev nyab xeeb thiab muaj peev xwm cuam tshuam kev noj qab haus huv ntawm cov neeg muaj siab lossis hauv cov neeg muaj kev ntxhov siab.

Qhov zoo ntawm Benzoic Acid

 

Antimicrobial Properties
Ib qho txiaj ntsig tseem ceeb ntawm benzoic acid yog nws cov khoom siv tshuaj tua kab mob. Nws yog dav siv los ua zaub mov kom tiv thaiv kev loj hlob ntawm pwm, poov xab, thiab kab mob hauv ntau yam khoom noj, suav nrog jams, kua txiv hmab txiv ntoo, thiab pickles. Nws lub peev xwm los inhibit microbial kev loj hlob txuas ntxiv lub txee lub neej ntawm cov zaub mov, ua kom nws muaj kev nyab xeeb thiab tshiab.

 

Cov khoom xyaw kom zoo nkauj
Benzoic acid yog ib yam khoom muaj nyob rau hauv cov tshuaj pleev ib ce vim nws muaj peev xwm khaws cia lub freshness thiab stability ntawm cov khoom kom zoo nkauj. Nws muaj nyob rau hauv ntau yam khoom, nrog rau cov tshuaj pleev ib ce, cream, thiab tshuaj zawv plaub hau, qhov twg nws ua raws li cov tshuaj tiv thaiv kom ntev lawv cov txee lub neej thiab tiv thaiv cov kab mob microbial.

 

Compatibility nrog lwm cov khoom xyaw
Benzoic acid paub txog nws kev sib raug zoo nrog ntau yam khoom xyaw, tso cai rau nws yooj yim muab tso rau hauv ntau yam formulations. Nws versatility ua rau nws ib tug nrov kev xaiv rau kev siv nyob rau hauv ua ke nrog nrog rau lwm yam preservatives, antioxidants, thiab haumxeeb cov khoom xyaw los txhim kho tag nrho cov kev ua tau zoo thiab stability ntawm cov khoom.

 

Nqi-zoo
Kev tsim cov benzoic acid yog tus nqi-zoo, ua rau nws siv dav hauv ntau lub lag luam. Nws muaj thiab pheej yig ua rau nws muaj nqi sib tw rau kev siv ntau yam, suav nrog kev txuag zaub mov, tshuaj formulations, thiab cov txheej txheem kev lag luam.

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 Benzoic Acid

 

Sodium Benzoate hmoov
Ib qho ntawm feem ntau cov derivatives ntawm benzoic acid yog sodium benzoate (NaC7H5O2), uas yog sodium ntsev ntawm benzoic acid. Nws yog dej-soluble heev thiab feem ntau siv los ua zaub mov preservative. Sodium benzoate muaj txiaj ntsig zoo hauv cov cheeb tsam acidic, uas ua rau nws haum rau cov khoom noj thiab dej haus nrog pH qis, xws li jams, kua ntses, thiab dej qab zib carbonated.

 

Potassium Benzoate
Zoo ib yam li sodium benzoate, potassium benzoate (KC7H5O2) yog lwm cov ntsev ntawm benzoic acid. Nws yog qhov zoo dua hauv cov xwm txheej uas xav tau cov ntsiab lus sodium tsawg dua. Potassium benzoate feem ntau yog siv ua ke nrog sodium benzoate los txhim kho kev ua tau zoo thiab muaj nyob rau hauv cov dej qab zib, tshwj xeeb tshaj yog cov khw muag khoom xws li "tsawg sodium" lossis "salt hloov."

 

benzoic acid esters (benzyl esters)
Cov alkyl esters ntawm benzoic acid, feem ntau hu ua benzyl esters, yog siv nyob rau hauv fragrances thiab flavorings. Cov esters no yog tsim los ntawm reacting benzoic acid nrog ib qho cawv. Lawv muaj cov yam ntxwv tsw ntxhiab tsw thiab siv ntau yam khoom, suav nrog tshuaj tsw qab, xab npum, thiab tshuaj pleev.

 

Benzoyl Chloride
Benzoyl chloride (C6H5COCl) yog acyl chloride derivative ntawm benzoic acid. Nws yog ib tug reactive intermediate siv nyob rau hauv lub synthesis ntawm benzoylated tebchaw. Vim nws muaj peev xwm tsim amides thiab peptides los ntawm cov tshuaj tiv thaiv nrog amines, nws yog ib qho tseem ceeb reagent hauv organic synthesis.

 

Methyl Benzoate
Methyl benzoate (C8H8O2) yog ib qho ester ntawm benzoic acid nrog methanol. Nws muaj cov ntxhiab tsw qab, tsw qab thiab siv rau hauv kev lag luam tshuaj tsw qab thiab hauv kev sib txuas ntawm lwm cov tshuaj.

 

Ethyl Benzoate hmoov
Ethyl benzoate (C9H10O2) yog lwm ester ntawm benzoic acid. Nws yog siv nyob rau hauv zus tau tej cov perfumes thiab flavorings vim nws qab ntxiag tsw. Tsis tas li ntawd, nws ua haujlwm ua ib qho nruab nrab hauv kev sib txuas ntawm cov tshuaj thiab lwm cov organic tebchaw.

 

Benzoic Anhydride
Benzoic anhydride (C8H6O3) yog anhydride daim ntawv ntawm benzoic acid, tsim los ntawm kev tshem tawm ob tug dej molecules ntawm ob molecules ntawm benzoic acid. Nws yog siv los ua tus neeg sawv cev diazotizing nyob rau hauv kev sib txuas ntawm azo tebchaw, uas yog dav siv los ua dyes thiab pigments.

 

Triphenylmethyl (trityl) Carbenium Ion
Trityl carbenium ions yog muab los ntawm trityl chloride, uas yog nws tus kheej muab los ntawm benzoic acid. Cov carbenium ions no yog cov muaj zog oxidizers thiab siv rau hauv kev sib txuas ntawm ntau cov organic tebchaw, nrog rau kev tiv thaiv cov pab pawg hauv cov organic synthesis.

Yuav khaws Benzoic Acid li cas
 

Tswj kub ib puag ncig
Benzoic acid yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav kom deb ntawm qhov chaw kub. Kev kub ntau dhau tuaj yeem ua rau degradation ntawm cov compound, txo nws cov kev ua tau zoo thiab muaj peev xwm tsim cov khoom tsis zoo. Chav tsev kub ib puag ncig, qhov zoo tshaj plaws ntawm 68 degree F thiab 77 degree F (20 degree thiab 25 degree), yog qhov zoo rau kev tswj xyuas kev ruaj ntseg ntawm benzoic acid.

 

Kev Tiv Thaiv Ntawm Lub Teeb
Thaum benzoic acid yog qhov ruaj khov ntawm lub teeb pom kev zoo, nws tseem pom zoo kom khaws cia rau hauv cov thawv xim amber lossis cov khoom uas muaj lwm yam teeb pom kev zoo los tiv thaiv kev muaj peev xwm yees duab degradation uas tuaj yeem tshwm sim dhau sijhawm.

 

Tswj dej noo
Txij li thaum benzoic acid yog me ntsis soluble hauv dej, nws yog ib qho tseem ceeb kom nws nyob rau hauv ib qho chaw tsis muaj dej noo. Cov av noo ntau dhau tuaj yeem ua rau clumping lossis txawm tias hydration ntawm cov kua qaub, hloov nws lub cev thiab tuaj yeem cuam tshuam rau nws cov khoom siv tshuaj. Siv cov desiccants thiab xyuas kom meej tias cov thawv ntim khoom kaw nruj nreem tuaj yeem pab txo qhov teeb meem no.

Benzoic Acid Food Grade CAS 65-85-0

 

Benzoic Acid Food Grade CAS 65-85-0

Ntim kom raug
Benzoic acid yuav tsum tau khaws cia rau hauv cov thawv ntim zoo uas ua los ntawm cov ntaub ntawv uas tsis ua rau cov kua qaub, xws li iav lossis yas. Lub thawv yuav tsum muaj zog txaus los tiv thaiv cov ntsiab lus los ntawm kev puas tsuaj rau lub cev thiab yuav tsum tau sau kom meej nrog cov ntsiab lus thiab cov ntaub ntawv kev nyab xeeb tsim nyog.

 

Nyob deb ntawm cov kab mob
Txhawm rau kom tsis txhob muaj kev sib kis, benzoic acid yuav tsum tau muab cais tawm ntawm cov khoom siv tsis sib xws, xws li cov tshuaj oxidizing muaj zog, vim qhov no tuaj yeem ua rau muaj kev phom sij. Nws tseem yuav tsum tau muab cia kom deb ntawm qhov chaw ntawm cov pa phem xws li plua plav thiab av, uas tuaj yeem ua kom pom cov impurities rau hauv cov khoom.

 

Kev tiv thaiv hluav taws
Muab hais tias benzoic acid yog flammable nyob rau hauv daim ntawv ntawm plua plav, tsim nyog kev tiv thaiv hluav taws yuav tsum nyob rau hauv qhov chaw. Qhov no suav nrog kev muaj cov tshuaj tua hluav taws uas tsim nyog thiab ua kom ntseeg tau tias tsis muaj cov nplaim taws qhib los yog cov nplaim taws nyob ze ntawm qhov chaw cia khoom.

Kev siv benzoic acid

 

 

Khoom noj khoom haus Preservative
Benzoic acid thiab nws cov sodium thiab potassium ntsev yog dav siv los ua cov tshuaj tua kab mob hauv cov khoom noj. Lawv tshwj xeeb tshaj yog nyob rau hauv acidic tej yam kev mob, ua rau lawv haum rau cov khoom xws li jams, dej haus, thiab hnav khaub ncaws, qhov twg ph yog tsawg. Los ntawm inhibiting kev loj hlob ntawm cov kab mob, cov poov xab, thiab pwm, benzoic acid pab ncua lub txee lub neej ntawm cov khoom noj khoom haus tsis ua rau lwj.

 

Cov khoom siv tshuaj pleev ib ce thiab kho tus kheej
Hauv kev lag luam tshuaj pleev ib ce, benzoic acid muaj nuj nqis rau nws cov khoom zoo. Nws feem ntau suav nrog cov tshuaj pleev, tshuaj pleev, tshuaj zawv plaub hau, thiab lwm yam khoom siv tu tus kheej kom tiv thaiv kev loj hlob ntawm cov kab mob tsis zoo thiab tswj xyuas cov khoom zoo thiab kev nyab xeeb ntawm lub sijhawm.

 

Industrial Chemical
Raws li ib tug precursor nyob rau hauv lub synthesis ntawm ntau lwm yam tshuaj, benzoic acid plays lub luag hauj lwm tseem ceeb hauv kev lag luam chemistry. Nws tuaj yeem ua polymerized los ua polybenzylic alcohols los yog hloov mus rau hauv benzyl derivatives, uas yog siv nyob rau hauv zus tau tej cov dyes, detergents, thiab polymers.

 

Tshuaj kho mob
Benzoic acid yog siv nyob rau hauv kev lag luam kws tshuaj los tsim ntau yam tshuaj. Nws ua hauj lwm ua ib yam khoom pib rau synthesizing benzodiazepines, uas yog ib chav kawm ntawm psychoactive tshuaj siv los kho kev ntxhov siab vim, insomnia, thiab qaug dab peg. Tsis tas li ntawd, nws cov esters, xws li methyl thiab ethyl benzoates, tuaj yeem siv rau hauv kev tsim cov khoom siv tshuaj.

 

Kev lag luam yas
Hauv kev tsim cov yas, benzoic acid thiab nws cov derivatives yog siv los ua plasticizers los txhim kho kev yooj yim, pob tshab, durability, thiab processability ntawm cov ntaub ntawv yas. Lawv pab txo cov brittleness thiab cia cov yas yuav molded yooj yim dua.

 

Flavoring Agent
Vim nws cov ntxhiab tsw, benzoic acid thiab nws cov esters yog siv los ua cov tshuaj tsw qab hauv cov khoom noj thiab dej haus. Lawv tuaj yeem pab txhawb rau tag nrho cov saj ntawm cov khoom xws li cov khoom ci, dej haus, thiab khoom qab zib.

 

Synthesis Intermediate
Benzoic acid yog ib qho tseem ceeb nruab nrab ntawm cov organic synthesis. Nws tuaj yeem hloov mus rau ntau yam sib txuas nrog rau aniline, phenol, thiab lwm yam tshuaj tsw qab los ntawm ntau yam tshuaj lom neeg.

 

Khaws Ntoo
Hauv kev lag luam khaws cia ntoo, benzoic acid yog siv los tiv thaiv cov qauv ntoo ntawm kev lwj thiab kab. Nws nkag mus rau hauv ntoo thiab ua raws li cov tshuaj tua kab mob fungicide thiab tshuaj tua kab, yog li ua kom lub neej ntev ntawm cov ntoo hauv kev siv sab nraum zoov.

 

Roj Hmab Tshuaj
Benzoic acid thiab nws cov derivatives yog ua haujlwm nyob rau hauv kev lag luam roj hmab ua antioxidants thiab accelerators. Cov tebchaw no pab kom ruaj khov ntawm cov roj hmab tiv thaiv thermal thiab oxidative degradation thaum ua thiab kev pabcuam lub neej.

 

Textile Auxiliaries
Hauv textiles, benzoic acid thiab nws cov esters tuaj yeem siv los ua npauj tshuaj tua kab thiab mildewcides los tiv thaiv cov ntaub los ntawm kab tsuag thiab pwm loj hlob.

Kev ceev faj thaum siv Benzoic Acid

Chaw Ua Haujlwm Qhov Chaw Ua Haujlwm

Xyuas kom meej tias thaj chaw ua haujlwm yog qhov cua zoo. Siv cov pa tso pa hauv zos lossis cov tshuaj fume hood thaum tswj cov benzoic acid hauv qhov ntau uas tuaj yeem tsim cov pa tawm. Kev ua pa kom txaus yuav pab tshem tawm cov vapors thiab txo qhov kev pheej hmoo ntawm kev nqus pa.

Kev tsis sib haum xeeb

Yuav tsum paub txog cov tshuaj uas cuam tshuam tsis zoo nrog benzoic acid. Tsis txhob sib cuag nrog cov neeg ua haujlwm oxidizing, vim qhov no tuaj yeem ua rau hluav taws kub lossis tawg. Tsis tas li ntawd, khaws cov benzoic acid kom deb ntawm cov ntaub ntawv alkaline, vim nws tuaj yeem ua rau muaj salicylic acid thiab lwm yam derivatives.

 

Kev cia khoom

Khaws benzoic acid raws li tau qhia, feem ntau nyob rau hauv qhov chaw txias, qhuav, thiab qhov cua zoo kom deb ntawm cov ntaub ntawv tsis sib xws xws li oxidizing agents. Khaws nws deb ntawm tshav ntuj ncaj qha thiab qhov chaw ntawm tshav kub kom tsis txhob decomposition.

Kev txwv tsis pub dhau

Yuav tsum paub txog qhov txwv tsis pub kis tau (pels) lossis qhov pib txwv qhov tseem ceeb (tlvs) rau benzoic acid hauv chaw ua haujlwm. Xyuas kom meej tias qhov kis tau qis dua cov kev txwv no kom txo qis kev pheej hmoo ntawm kev noj qab haus huv.

 

Kuv Yuav Xaiv Txoj Cai Benzoic Acid li cas

 

Qib Purity
Qib purity ntawm benzoic acid yog ib qho kev ntsuas ntawm ntau npaum li cas ntawm cov compound muaj nyob rau hauv cov qauv piv rau impurities. Cov qib sib xws muaj xws li kev kawm, qib zaub mov, qib kws tshuaj, thiab qib ntsuas ntsuas. Rau cov ntawv thov uas xav tau siab precision lossis qhov chaw muaj impurities tuaj yeem cuam tshuam rau qhov tshwm sim, xws li hauv cov chaw muag tshuaj lossis cov chaw soj ntsuam, yuav tsum muaj qib purity siab dua. Khoom noj khoom haus-qib benzoic acid yuav tsum ua tau raws li cov qauv tsim los ntawm cov neeg saib xyuas kev nyab xeeb khoom noj.

 

Daim ntawv ntawm Cov Acid
Benzoic acid muaj nyob rau hauv ntau hom, xws li hmoov, flakes, los yog muaju. Qhov kev xaiv nyob ntawm qhov yooj yim ntawm kev tuav thiab daim ntawv thov. Daim ntawv hmoov feem ntau nyiam rau daim ntawv thov ncaj qha lossis ua tiav ntxiv, thaum cov flakes loj dua los yog muaju yuav yooj yim rau kev tswj thiab hloov mus rau ntau qhov ntau.

 

Solubility
Xav txog qhov solubility ntawm benzoic acid nyob rau hauv cov kuab tshuaj los yog nruab nrab koj yuav siv nws nrog. Nws yog ntau dua soluble hauv dej ntawm qhov kub siab dua, uas yog qhov tseem ceeb yog tias koj npaj yuav siv nws hauv cov tshuaj aqueous. Txawm li cas los xij, rau cov ntawv thov uas dej tsis koom nrog, solubility yuav tsis yog qhov tseem ceeb.

 

Kev ruaj ntseg
Ntsuas qhov ruaj khov ntawm benzoic acid nyob rau hauv cov xwm txheej nws yuav raug. Nws yuav tsum khaws nws cov tshuaj lom neeg yam tsis muaj decomposition lossis reacting nrog lwm yam hauv koj lub cev. Tshawb xyuas cov chaw tsim khoom tshwj xeeb rau kev ruaj ntseg nyob rau hauv ntau yam xwm txheej, xws li qhov kub thiab txias los yog lub sijhawm ntev cia.

 

Ntim Thiab Cia
Xav txog cov kev xaiv ntim khoom thiab yuav ua li cas lawv ua raws li koj lub peev xwm khaws cia thiab tuav cov txheej txheem. Benzoic acid yuav tsum tau ntim los tiv thaiv kev kis kab mob thiab degradation, tshwj xeeb tshaj yog tias nws yuav khaws cia rau lub sijhawm ntev.

Kev tsim cov txheej txheem ntawm Benzoic Acid

 

 

Cov txheej txheem tseem ceeb ntawm benzoic acid suav nrog oxidation ntawm toluene, cov pos hniav benzoin txoj kev, thiab cov pa roj carbon dioxide. Lub oxidation ntawm toluene yog qhov feem ntau siv thiab siv tau zoo rau kev tsim cov benzoic acid. Cov txheej txheem no suav nrog huab cua los yog cov pa ntshiab huv tshaj li cov toluene nyob rau hauv lub xub ntiag ntawm cov nyiaj catalyst. Cov tshuaj tiv thaiv tshwm sim ntawm qhov kub thiab txias li ntawm 780 degree mus rau 860 degree hauv cov txheej txheem hu ua "Reyes process." Lub catalyst pab txhawb oxidation ntawm toluene rau benzoic acid thiab dej. Cov benzoic acid yog ces muab rho tawm los ntawm cov tshuaj tiv thaiv sib tov los ntawm dissolving nws nyob rau hauv dej thiab ces crystallizing nws tawm. Txoj kev no yields ntau ntau ntawm benzoic acid thiab yuav scaled rau industrial ntau lawm. Lwm txoj hauv kev los tsim cov benzoic acid yog los ntawm cov pos hniav benzoin txoj kev. Cov pos hniav benzoin yog balsamic resin muab rho tawm los ntawm cov ntoo hauv Thaib teb thiab Cambodia. Nws muaj benzyl benzoate, uas tuaj yeem hydrolyzed rau benzoic acid thiab benzyl cawv. Cov txheej txheem no suav nrog saponification nrog sodium hydroxide, uas ua rau tsim cov kua qaub dawb, uas tuaj yeem ua rau precipitated thiab purified. Txawm hais tias txoj kev no yog ib puag ncig zoo dua vim yog siv cov peev txheej ntuj, nws tsis tshua muaj nqi piv rau cov txheej txheem Reyes thiab yog li siv tsawg dua rau kev lag luam ntau lawm.

 
Dab tsi yog Cov Cheebtsam ntawm Benzoic Acid
 
01/

Benzene nplhaib
Lub benzene moiety ntawm benzoic acid yog ib tug rau-carbon aromatic nplhaib nrog alternating ob thiab ib tug bonds ntawm carbon atoms. Lub nplhaib qauv no ruaj khov heev vim yog delocalization ntawm pi electrons thoob plaws lub nplhaib, tso cai rau cov molecule nws cov yam ntxwv aromatic. Kev ruaj ntseg thiab reactivity ntawm lub nplhaib benzene cuam tshuam cov khoom ntawm benzoic acid, ua rau nws tsis tshua muaj reactive tshaj li aliphatic carboxylic acids.

02/

Functional Groups Interactions
Kev sib cuam tshuam ntawm benzene nplhaib thiab pawg carboxyl cuam tshuam rau kev coj tus cwj pwm ntawm benzoic acid. Cov nyhuv electron pub dawb ntawm lub nplhaib benzene tuaj yeem ntxiv dag zog rau kev sib koom ua ke hauv pawg carboxyl, ua rau nws tsis tshua muaj acidic dua li aliphatic carboxylic acids. Txawm li cas los xij, resonance stabilization ntawm pawg carboxyl conjugate puag nyob rau hauv lub nplhaib benzene tuaj yeem them nyiaj rau cov nyhuv no.

03/

Carboxyl Group
C=o) txuas rau pawg hydroxyl (oh). Hauv benzoic acid, pawg carboxyl txuas ncaj qha mus rau carbon atom ntawm lub nplhaib benzene. Cov hydroxyl ib feem ntawm pawg carboxyl tuaj yeem koom nrog hydrogen bonding, ua rau cov kua qaub solubility hauv cov kuab tshuaj polar thiab nws muaj peev xwm tsim cov ntsev nrog cov hauv paus.

04/

Intermolecular Forces
Benzoic acid molecules nthuav tawm van der waals rog, kev sib cuam tshuam dipole-dipole, thiab hydrogen bonding. Cov hydrogen bonding tshwm sim ntawm hydrogen ntawm pawg carboxyl thiab cov pa oxygen ntawm lwm pawg carboxyl lossis dej molecules, txhim kho cov compound solubility hauv cov kuab tshuaj zoo li dej.

05/

Resonance Structures
Vim lub conjugated system tam sim no nyob rau hauv benzoic acid, muaj peb qhov tseem ceeb resonance qauv uas ua rau lub compound stability. Cov qauv no koom nrog kev hloov pauv ntawm electrons los ntawm carboxyl oxygen mus rau lub nplhaib benzene, uas ua rau ib feem ob daim ntawv cog lus thoob plaws hauv lub molecule. Lub resonance delocalizes tsis zoo nqi tshaj carboxylate ion thaum dissociated, txo lub zog ntawm lub cev thiab stabilizing cov kua qaub.

06/

Isomers thiab Derivatives
Benzoic acid muaj ob peb isomers thiab derivatives. Ortho-hydroxybenzoic acid thiab para-hydroxybenzoic acid yog cov piv txwv ntawm txoj haujlwm isomers, sib txawv ntawm qhov chaw ntawm pawg hydroxyl txheeb ze rau pawg carboxyl ntawm lub nplhaib benzene. Esters, amides, thiab sulfonates yog cov derivatives ntawm benzoic acid, tsim los ntawm kev hloov cov hydrogen atom ntawm pawg -cooh nrog ntau pawg.

 
Dab tsi yog Melting Point ntawm Benzoic Acid?

Lub melting point ntawm benzoic acid yog kwv yees li 122 degree (252 degree F). Qhov ntsuas kub no qhia txog qhov taw tes ntawm cov khoom benzoic acid hloov mus rau hauv cov kua. Lub melting point yog ib qho tseem ceeb ntawm lub cev vim hais tias nws muab kev pom rau hauv kev ruaj ntseg thiab reactivity ntawm compound. Lub ntsiab lus melting yog cuam tshuam los ntawm ntau yam, suav nrog nws qhov hnyav molecular, lub zog ntawm lub zog ntawm lub cev, thiab muaj hydrogen bonds lossis van der Waals rog. Nyob rau hauv cov ntaub ntawv ntawm benzoic acid, lub melting point tuaj yeem raug ntaus nqi rau ntau yam tseem ceeb. Ua ntej, benzoic acid muaj qhov hnyav molecular hnyav, ua rau nws cov ntsiab lus melting ntau dua piv rau cov carboxylic acids me. Qhov thib ob, lub xub ntiag ntawm pawg carboxyl (-COOH) qhia ob qho tib si hydrogen bonding thiab dipole-dipole kev sib cuam tshuam, uas yog qhov tseem ceeb hauv kev txiav txim siab qhov melting point. Lub nplhaib uas muaj ntxhiab benzene kuj tseem txhawb nqa lub ntsiab lus melting los ntawm London dispersion rog, uas nce nrog qhov loj thiab branching ntawm molecules. Ntxiv mus, symmetry thiab lub hom phiaj ntawm lub nplhaib benzene hauv benzoic acid txhim kho π-stacking kev sib cuam tshuam, uas yog ib daim ntawv ntawm London dispersion rog uas tshwm sim ntawm tiaj tus, polar molecules. Cov kev sib cuam tshuam no txuas ntxiv ua kom cov ntsiab lus melting los ntawm kev tso cov molecules los ntim cov khoom sib xyaw ua ke hauv cov iav siv lead ua, xav tau ntau lub zog los cuam tshuam cov qauv khoom. Kev nkag siab txog kev sib raug zoo ntawm cov qauv tsim thiab nws lub cev, xws li melting point, yog qhov tseem ceeb hauv ntau yam kev tshawb fawb thiab kev lag luam. Piv txwv li, nyob rau hauv kev lag luam khoom noj khoom haus, lub melting point ntawm benzoic acid pab txiav txim qhov tsim nyog tej yam kev mob rau nws siv raws li ib tug preservative - nws yuav tsum tau ntxiv ua ntej cov khoom mus txog nws melting point los xyuas kom meej tias nws nyob twj ywm nyob rau hauv cov ntaub ntawv thiab muaj peev xwm inhibit microbial kev loj hlob. .

Benzoic Acid puas tuaj yeem ua rau Esterification?

 

 

Benzoic acid, zoo li lwm cov carboxylic acids, muaj lub peev xwm los mus rau esterification, tshuaj lom neeg cov tshuaj tiv thaiv uas ua rau tsim cov ester los ntawm cov tshuaj tiv thaiv ntawm carboxylic acid thiab cawv. Thaum lub sijhawm txheej txheem no, pawg hydroxyl (OH) ntawm carboxylic acid yog hloov los ntawm ib pawg alkoxy (OR) muab los ntawm cawv, thiab hauv cov txheej txheem, cov dej molecule raug tshem tawm. Cov txheej txheem ntawm esterification feem ntau yog ua los ntawm ob txoj hauv kev: ncaj qha cov tshuaj tiv thaiv thiab catalytic esterification. Nyob rau hauv cov tshuaj tiv thaiv ncaj qha, esterification tshwm sim spontaneously nyob rau hauv txoj cai tej yam kev mob, feem ntau yog muaj concentrated acid daws thiab kub kub. Ntawm qhov tod tes, catalytic esterification yog yooj yim los ntawm lub xub ntiag ntawm cov kua qaub catalyst, xws li sulfuric acid los yog p-toluenesulfonic acid, uas txo qis lub zog ua kom muaj zog ntawm cov tshuaj tiv thaiv thiab ua rau nws zoo dua nyob rau hauv qis kub. Nyob rau hauv cov ntaub ntawv ntawm benzoic acid, esterification tuaj yeem ua tau ntau yam ntawm benzyl benzoate derivatives, nyob ntawm seb cov cawv siv los ua cov tshuaj reactant. Piv txwv li, thaum benzoic acid reacts nrog methanol, methyl benzoate yog tsim; nrog ethanol, ethyl benzoate yog tsim; thiab lwm yam rau lwm yam cawv. Cov esters no yog cov muaj txiaj ntsig zoo nyob rau hauv kev sib txuas ntawm cov tshuaj, tsw, thiab tshuaj tsw qab. Cov esterification ntawm benzoic acid kuj tuaj yeem tshwm sim hauv cov mob me me uas siv lipase enzymes ua biocatalysts. Txoj kev enzymatic no muaj txiaj ntsig zoo vim nws muaj kev xaiv siab, tuaj yeem ua haujlwm nyob rau hauv qhov kub thiab txias, thiab feem ntau ua rau txo qis hauv kev tsim cov khoom lag luam. Enzyme-catalyzed esterifications tau nce kev ua haujlwm hauv cov txheej txheem kev lag luam vim lawv cov txiaj ntsig zoo thiab ib puag ncig.

 
Benzoic Acid siv li cas hauv tshuaj pleev ib ce?

Benzoic acid ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj pleev ib ce vim nws cov khoom siv tshuaj tua kab mob, uas pab ua kom lub neej txee ntawm cov khoom thiab tswj lawv cov khoom zoo dhau sijhawm. Raws li kev khaws cia, nws ua haujlwm los tiv thaiv kev loj hlob ntawm cov kab mob, cov poov xab, thiab pwm, uas tuaj yeem ua rau cov tshuaj pleev ib ce, ua rau cov khoom tsis zoo, thiab muaj peev xwm ua rau cov kab mob ntawm daim tawv nqaij los yog khaus khaus thaum cov khoom siv tshuaj tua kab mob. Hauv cov qauv tshuaj pleev ib ce, benzoic acid feem ntau yog siv ua ke nrog lwm cov khoom xyaw, xws li sodium benzoate, los txhim kho nws cov kev tiv thaiv. Sodium benzoate yog sodium ntsev ntawm benzoic acid thiab soluble ntau dua hauv dej, ua kom yooj yim rau kev tawg mus rau hauv cov khoom kom zoo nkauj. Thaum tsim kom raug, kev sib xyaw ua ke ntawm benzoic acid thiab sodium benzoate tsim kom muaj qhov dav-spectrum preservative system uas muaj txiaj ntsig zoo tshaj pH ntau yam. Qhov kev hloov pauv no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam tshuaj pleev ib ce, qhov twg cov khoom tuaj yeem muaj pH sib txawv nyob ntawm seb lawv xav siv thiab hom khoom xyaw uas lawv muaj. Kev siv cov benzoic acid hauv cov tshuaj pleev ib ce yog tswj hwm los ntawm cov koom haum tswj hwm uas tsim cov txheej txheem kev siv nyab xeeb los tiv thaiv cov neeg siv khoom. Cov lus qhia no coj mus rau hauv tus account yam xws li qhov siab tshaj plaws ntawm cov tshuaj benzoic acid tuaj yeem siv yam tsis muaj kev cuam tshuam tsis zoo, hom khoom uas nws tuaj yeem suav nrog, thiab muaj kev txwv raws li qhov muaj lwm cov khoom xyaw lossis kev sib cuam tshuam.

 
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: benzoic acid yog dab tsi?

A: Benzoic acid yog ib qho tshuaj tsw qab monocarboxylic acid uas tau siv dav hauv cov khoom noj, tshuaj, thiab tshuaj pleev ib ce. Nws cov tshuaj formula yog C6H5COOH.

Q: benzoic acid tshwm sim nyob qhov twg?

A: Benzoic acid muaj nyob rau hauv ntau cov nroj tsuag thiab ib co txiv hmab txiv ntoo, tshwj xeeb tshaj yog berries, raws li zoo raws li nyob rau hauv resin. Nws kuj yog synthesized industrially.

Q: Lub hom phiaj ntawm benzoic acid yog dab tsi?

A: Benzoic acid ua raws li cov tshuaj tiv thaiv kab mob los tiv thaiv kev loj hlob ntawm cov pwm, cov poov xab, thiab qee cov kab mob, yog li ncua lub txee lub neej ntawm cov khoom.

Q: Puas yog benzoic acid soluble hauv dej?

A: Benzoic acid yog me ntsis soluble hauv dej txias tab sis ntau soluble hauv dej kub. Nws yog soluble heev hauv cov kuab tshuaj organic xws li ethanol thiab acetone.

Q: Dab tsi yog pH ntawm benzoic acid?

A: Nyob rau hauv nws daim ntawv acid, benzoic acid yog acidic, nrog ib tug pH tsawg tshaj li 7. Thaum yaj nyob rau hauv dej, nws muaj peev xwm txo pH vim yog tso tawm ntawm hydrogen ions.

Q: Dab tsi ua haujlwm pab pawg muaj nyob hauv benzoic acid?

A: Benzoic acid muaj ob pawg carboxylic acid (-COOH) thiab ib lub nplhaib uas muaj ntxhiab benzene (C6H5-).

Q: benzoic acid puas tuaj yeem ua rau esterification?

A: Yog, benzoic acid reacts nrog cawv nyob rau hauv lub xub ntiag ntawm ib tug acid catalyst los tsim esters, feem ntau hu ua esterification.

Q: Puas yog benzoic acid muaj cov tshuaj tiv thaiv nrog sodium bicarbonate?

A: Yog, thaum benzoic acid raug kho nrog sodium bicarbonate, nws tsim sodium benzoate thiab tso pa roj carbon dioxide.

Q: Cov khoom twg muaj benzoic acid?

A: Benzoic acid los yog nws cov ntsev, xws li sodium benzoate los yog poov tshuaj benzoate, yog siv rau hauv cov khoom noj acidic thiab dej haus (piv txwv li, dej qab zib, jams, thiab zaub xam lav hnav khaub ncaws), cov khoom tu tus kheej (xws li, tshuaj ntxuav qhov ncauj), thiab tshuaj pleev ib ce (xws li, plaub hau. gels thiab cream).

Q: benzoic acid siv hauv tshuaj pleev ib ce li cas?

A: Hauv cov tshuaj pleev ib ce, benzoic acid tuaj yeem ua haujlwm ua cov tshuaj tiv thaiv los tiv thaiv kev loj hlob ntawm cov kab mob uas tuaj yeem ua rau cov khoom lwj lossis ua rau muaj kev pheej hmoo rau tus neeg siv.

Q: Qhov txawv ntawm benzoic acid thiab benzoyl peroxide yog dab tsi?

A: Benzoic acid feem ntau yog siv los ua cov tshuaj tiv thaiv, thaum benzoyl peroxide yog cov tshuaj siv los kho pob txuv. Lawv muaj cov qauv tshuaj sib txawv thiab siv.

Q: Puas muaj kev txwv rau kev siv benzoic acid?

A: Yog, kev siv benzoic acid yog tswj los ntawm ntau lub koom haum thoob ntiaj teb. Tus nqi tso cai rau hauv cov khoom noj thiab tshuaj pleev ib ce yog txwv, thiab nws tsis tuaj yeem siv rau hauv cov khoom siv rau cov menyuam mos thiab menyuam mos.

Q: Lub teb chaws twg tswj hwm benzoic acid?

A: Cov tebchaws xws li Tebchaws Meskas, European Union, thiab Canada tswj kev siv benzoic acid hauv cov zaub mov thiab tshuaj pleev ib ce los ntawm lawv cov chaw saib xyuas kev nyab xeeb thiab noj qab haus huv.

Q: benzoic acid puas tuaj yeem ua rau muaj kev tsis haum tshuaj?

A: Qee tus neeg yuav muaj kev fab tshuaj rau benzoic acid lossis nws cov khoom muaj feem xyuam. Cov tsos mob tuaj yeem muaj xws li pob khaus, khaus khaus, lossis mob hawb pob.

Q: Puas yog benzoic acid puas tsim kev puas tsuaj rau ib puag ncig?

A: Benzoic acid kuj tsis muaj tshuaj lom rau ib puag ncig. Txawm li cas los xij, kev siv ntau dhau tuaj yeem ua rau tsub zuj zuj hauv cov dej, uas cuam tshuam rau cov kab mob hauv dej.

Q: Puas yog benzoic acid degrade?

A: Benzoic acid tuaj yeem degrade nyob rau hauv qee qhov xwm txheej, xws li raug tshav ntuj, tab sis nws kuj ruaj khov thiab tuaj yeem nyob hauv ib puag ncig.

Q: benzoic acid ua lag luam li cas?

A: Benzoic acid yog tsim los ntawm kev ua lag luam los ntawm oxidation ntawm toluene, phenol, los yog benzyl cawv siv cov huab cua los yog oxygen.

Q: benzoic acid puas tuaj yeem ua rau hauv chav kuaj?

A: Yog lawm, benzoic acid tuaj yeem ua ke hauv chav kuaj los ntawm oxidizing toluene lossis benzaldehyde siv cov tshuaj muaj zog oxidizing zoo li potassium permanganate.

Q: Ntxiv rau kev khaws cia, lwm yam kev siv benzoic acid muaj dab tsi?

A: Benzoic acid kuj tseem siv rau hauv kev tsim cov dyes, plastics, thiab hluavtaws waxes. Nws ua haujlwm ua ntej rau lwm yam tshuaj, suav nrog polyesters thiab tshuaj.

Q: Yuav ua li cas benzoic acid piv rau lwm yam preservatives?

A: Benzoic acid ua haujlwm zoo ntawm pH qis thiab feem ntau piv rau sorbic acid thiab parabens. Nws txoj kev xaiv nyob ntawm cov khoom lag luam, qib kev khaws cia uas xav tau, thiab kev tswj hwm kev txiav txim siab.

Xav tias dawb yuav benzoic acid ntawm tus nqi pheej yig los ntawm peb lub hoobkas. Raws li ib qho ntawm cov kws tshaj lij benzoic acid manufacturers thiab lwm tus neeg, peb ib txwm nyob ntawm koj qhov kev pabcuam.

Xa kev nug