Phosphorous Acid

【molecular formula】:H₃PO₃
【molecular weight】:81.99566
【CAS Number】:13598-36-2
【Quality standard】:

Items	Super Class	First Class
content (%) ≥	99.0	98.5
Phosphate (%) ≤	0.1	0.2
chloride (%) ≤	0.0005	0.01
Sulphate (%) ≤	0.0001	0.006
Heavy metal ( according to Pb% ) ≤	0.0002	0.001
Iron (%) ≤	0.0001	0.002
Water-solubility	colorless, pure	Excellent

【Package】:25kg/ plastic woven bag
【Use】:Raw material of the manufacture for phosphite and plastic stabilizers. Reducing agent in chemical reaction, And used synthetic fibre and agro-chemicals industry.