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Phosphorous Acid

Product name: Phosphorous Acid
CAS: 13598-36-2
化学品名: Xylometazoline
Category: Fine Chemicals
Specification:

Trade Name: Phosphorous Acid
Mol. Formula: H3PO3
M.W.: 82.00
Properties:
Pure product is white crystals, specific gravity 1.651(21.2°C). M.P. 73.6°C, B.P. 200°C. Soluble in water and ethanol easily, and it will be oxidized into H3PO4 in the air slowly. Be decomposed into H3PO4 and phosphine when be heated to the temperature 180°C.H3PO3 is a kind of diacid, its acid-stage is higher than H3PO4. Be oxidized easily and has strong hygroscopy and corrosivity.
Usage:
It is the main stuff be used to manufacture the herbicide---glyphosate and also be used to manufacture phosphite etc.
Specifications:

Item

Premium grade

Grade I

Grade II

Grade III

Solution

Assay %, ≥

99%

99%

99%

98.5%

70%

Chloride (Cl-) %,≤

0.001

0.001

0.002

0.02

0.001

Iron (Fe) %, ≤

0.0005

0.001

0.002

0.005

0.0005

Sulphate (SO4) %, ≤

0.001

0.008

0.008

0.008

0.001

Phosphate (PO4) %, ≤

0.1

0.2

0.2

0.2

0.1

Smell

odorless

odorless

odorless

odorless

odorless

Appearance

Pure white crystal

white crystal

white crystal

white crystal

Clear colorless
liquid

Remark:
Package:25kg, 500kg or 1000kg/bag (Inside:PE,Outside:PP) for phosphorous acid crystal
280kg/HDPE drum,1400kg/IBC or ISO-tank for phosphorous acid solution

 
 
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