Cov khoom
Pheej yig/High Quality Phosphorous Acid CAS No. 13598-36-2
Product Description
| Lub npe: | Phosphorous acid |
| Synonym: | Phosphonic acid;Phosphorous acid;Phoenicol;Rac-phoenicol; |
| CAS: | 13598-36-2 ib |
| Formula: | H3O3 P |
| Acid zog: | Nruab nrab-muaj zog Acid |
| Qhov tsos: | Dawb los yog lub teeb daj siv lead ua, nrog qej tsw, yooj yim rau deliquescence. |
| EINECS: | 237-066-7 ib |
| HS Code: | 2811199090 ib |
Txoj kev tsim khoom
Cov txheej txheem tsim khoom muaj xws li phosphorus trichloride hydrolysis thiab phosphite method.
Txoj kev hydrolysis maj mam ntxiv dej dropwise rau phosphorus trichloride nyob rau hauv stirring rau hydrolysis cov tshuaj tiv thaiv los tsim phosphorous acid, uas yog refined Chemicalbook, txias thiab crystallized, thiab decolorized kom tau tiav phosphorous acid.
Nws cov txheej txheem PCI3 + 3H2O → H3PO3 + 3HCl cov txheej txheem tsim tawm hydrogen chloride rau kev rov ua dua tshiab, uas tuaj yeem ua rau hydrochloric acid.
Kev ruaj ntseg ntsig txog
1. Nws maj mam oxidized rau hauv orthophosphoric acid nyob rau hauv cov huab cua thiab decomposed rau hauv orthophosphoric acid thiab phosphine (muaj tshuaj lom heev) thaum rhuab mus rau 180 ℃.Phosphorous acid yog dibasic acid, nws cov acidity yog me ntsis muaj zog tshaj phosphoric acid, thiab nws muaj zog reducibility, uas yuav yooj yim txo Ag ions rau metallic nyiaj thiab sulfuric acid rau sulfur dioxide.Muaj zog hygroscopicity thiab deliquescence, corrosive.Yuav ua rau kub hnyiab.Irritating rau ntawm daim tawv nqaij.Muab tso rau hauv huab cua, nws deliquesces thiab yooj yim soluble hauv dej.Thaum qhov kub siab tshaj 160 ℃, H3PO4 thiab PH3 raug tsim.
2.Stability: ruaj khov
3. Forbidden sib tov: muaj zog alkali
4. Tsis txhob tiv tauj tej yam kev mob: kub, av noo
5. Aggregation txaus ntshai: tsis muaj aggregation
6. Decomposition khoom: phosphorus oxide
Siv
1.Nws yog cov khoom siv raw rau kev tsim cov yas stabilizers, thiab tseem siv rau hauv kev tsim cov hluavtaws fibers thiab phosphite.
2.Nws tuaj yeem siv los ua ib qho nruab nrab ntawm glyphosate thiab ethephon, thiab tseem tuaj yeem siv los ua tus neeg saib xyuas dej ua haujlwm zoo.
Cov ntaub ntawv ntxiv
1.Properties: dawb los yog lub teeb daj siv lead ua, nrog qej tsw thiab yooj yim deliquescence.
2. Melting point (℃): 73 ~ 73.8
3. Boiling point (℃): 200 (decomposition)
4.Relative ntom ntom (dej = 1): 1.65
5.Octanol / dej muab faib coefficient: 1.15
6. Solubility: Soluble hauv dej thiab ethanol.
