Phosphoric Acid Thiab Orthophosphoric Acid

Phosphoric acid

Phosphoric acid thiab orthophosphoric acid:

Tshuaj formula

H3PO 4

CAS ID

7664-38-2

Melting point

42 degree

Dej solubility

Nws tuaj yeem yaj nrog dej hauv txhua qhov sib piv

Qhov tshwm sim

Cov khoom dawb, tsis muaj xim viscous kua tshaj 42 degree

Tus lej thauj khoom txaus ntshai

UN 3453 8/PG 3

Qhov chaw khov

21 degree

Tsim

Phosphorus pentoxide yaj hauv dej kub los tsim

tsw

Tsis muaj ntxhiab tsw ntxhiab

Phosphoric acid thiab orthophosphoric acid Study:

Cov kws tshawb fawb ntxov tshaj plaws los kawm phosphoric acid yog Fab Kis kws tshuaj Lavoisier. Nyob rau hauv 1772, nws tau ua ib qho kev sim los ntawm kev muab phosphorus tso rau hauv ib lub mercury kaw tswb kom ignite nws. Qhov kev txiav txim siab los ntawm kev sim cov txiaj ntsig yog tias qee qhov nyiaj ntawm phosphorus tuaj yeem raug hlawv hauv ib lub peev xwm ntawm huab cua; Dawb flakes ntawm anhydrous phosphorus yog tsim thaum lub sij hawm phosphorus combustion, zoo li daus zoo; Tom qab combustion, huab cua nyob rau hauv lub raj mis tseem nyob li ntawm 80% ntawm nws thawj lub peev xwm; Tom qab phosphorus combustion, nws yog hais txog 2.5 lub sij hawm hnyav dua ua ntej combustion; Cov hmoov dawb yog yaj hauv dej kom tsim phosphoric acid. Lavoisier kuj tau ua pov thawj tias phosphoric acid tuaj yeem tsim los ntawm reacting concentrated nitric acid nrog phosphorus.

Kwv yees li ib puas xyoo tom qab, German chemist Libich tau ua ntau yam kev sim hauv kev ua liaj ua teb chemistry, nthuav tawm cov nqi ntawm phosphorus thiab phosphoric acid rau cov nroj tsuag lub neej. Xyoo 1840, Li Bixi phau ntawv "Lub luag haujlwm ntawm Organic Chemistry hauv Kev Ua Liaj Ua Teb thiab Lub Cev" scientifically qhia txog qhov teeb meem ntawm av fertility thiab taw qhia txog cov nyhuv ntawm phosphorus rau cov nroj tsuag. Nyob rau tib lub sijhawm, nws tau tshawb nrhiav ntxiv txog kev siv cov phosphoric acid thiab phosphate ua chiv, ushering nyob rau hauv lub era ntawm loj-scale zus tau tej cov phosphoric acid.

Kev siv phosphoric acid thiab orthophosphoric acid:

Nws yog ib qho ntawm cov khoom noj khoom haus additives, siv los ua tus neeg sawv cev thiab cov poov xab hauv cov zaub mov. Cola muaj phosphoric acid. Phosphates tseem yog cov khoom noj khoom haus tseem ceeb thiab tuaj yeem ua cov khoom noj khoom haus ntxiv.

Nws tuaj yeem siv los tsim cov phosphorus uas muaj cov tshuaj, xws li sodium glycerophosphate.

Ua tsaug rau koj tuaj xyuas thiab txais tos koj cov lus nug zoo!

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