khoom phosphorous acid
Cov khoom siv phosphorous acid yog cov khoom siv dav siv tsis zoo nrog cov tshuaj formula H₃PO₃, qhov hnyav molecular ntawm 82.00 thiab CAS npe ntawm 13598-36-2. Nws lub cev tseem ceeb thiab tshuaj lom neeg tsis muaj nyob hauv cov lus hauv qab no:
|
Yam khoom |
Specification |
|
Qhov tshwm sim |
Tsis muaj xim rau daj ntseg daj crystalline flakes nrog qej-zoo li tsw |
|
Qhov ntom |
1.651 g / cm³ |
|
Melting Point |
73 degree |
|
Boiling Point |
200℃(decomposes) |
|
Solubility |
Yooj yim soluble hauv dej thiab ethanol |
Raws li dibasic acid, khoom phosphorous acid yog me ntsis acidic dua phosphoric acid. Nws nthuav tawm muaj zog txo cov khoom, siab hygroscopicity thiab deliquescence. Nws yog nquag ua kom qeeb oxidation nyob rau hauv cov huab cua los tsim orthophosphoric acid, thiab decomposes thaum rhuab mus rau 180℃los tsim phosphine roj heev.
Hauv kev lag luam, cov khoom siv phosphorous acid yog cov khoom siv tseem ceeb rau kev tsim cov phosphites, tshuaj tua kab intermediates thiab organophosphorus dej kho tshuaj. Nws tseem tuaj yeem siv los ua tus neeg sawv cev dawb rau nylon, stabilizer rau polycarbonate thiab antioxidant rau nylon 1010.
Hais txog kev nyab xeeb, nws raug cais raws li Class II inorganic acidic corrosive yam khoom uas muaj kev phom sij code 93014. Nws yog corrosive heev rau ntawm daim tawv nqaij thiab qhov muag, yog li cov khoom siv tiv thaiv yuav tsum tau hnav thaum tuav. Rau kev khaws cia, nws yuav tsum tau khaws cia rau hauv qhov chaw txias thiab qhov dej zoo- qhov cua, kom deb ntawm alkalis, cov khoom siv hluav taws xob thiab cov tshuaj oxidizing.
Cim npe nrov: Khoom phosphorous acid, Tuam Tshoj khoom phosphorous acid
