Publish: 2015-08-18

CAS No: 13598-36-2

UN No: 2834

Molecular Formula: H3PO3

Molecular Weight: 82.0

Hazard Class: 8

Usage: Used as raw material in the producing of plastic stabilizer, synthetic fiber and phosphate, intermediate material of pesticides. Also used in producing high performance water treating agent ATMP.

Packing Group: III

Packages: 25kg, 50kg, 500kg, 1000kg plastic bag lined with PE or by customer’s requirement.

Product has two grades: Top grade 99% and First grade 98.5%.Top grade produced from PCl3 and First Grade from Dimethyl Phosphite(DMP),with Iron content controlled from 5ppm,10ppm,to 50ppm upon customers different usages and demands.


Testing Item Top Grade-I Top Grade-II First Grade III
Content(%) 99.0 Min 99.0 Min 98.5 Min
Iron(ppm) 5 Max 10 Max 50 Max
Chloride(CI)(%) 0.001 Max 0.01 Max 0.02 Max
Sulfate(SO4) 0.008 Max 0.01 Max 0.015 Max
Phosphate(PO4)(%) 0.1 Max 0.2 Max 0.6 Max
Appearance Pure White Crystal Pure White Crystal White Crystal
70% Aqueous Solution Test Colorless transparent Colorless transparent
without impurities
Colorless transparent
without impurities