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Phosphorous Acid

Inquiry
  Post Date: Mar 06,2017
  Expiry Date: Sep 02,2017
  Detailed Description: Cas No. :13598-36-2 Specs:98.5% 99%

Molecular Formula: H3PO3
UN No.: 2834
Molecular Weight: 82.00
CAS No.:13598-36-1 or 10294-56-1
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 hygroscope and corrosively.
Usage:
Phosphorous acid is mainly used in the production of phosphates, synthetic fibers and organ phosphorus pesticides, etc. It is also used in producing high performance water treating agent ATMP.
Package: 25kg, 500kg or 1000kg woven bag for phosphorous acid crystal
280kg/HDPE drum, 1400kg/IBC for phosphorous acid solution

PHOSPHOROUS ACID 98.5%

TESTING ITEM
Grade I
Grade II
Solution
Assay %, ≥
99 %
98.5 %
70 %
Chloride (Cl-) %, ≤
0.005
0.01
0.01
Iron (Fe) %, ≤
0.002
0.005
0.02
Sulphate (SO4) %, ≤
0.006
0.008
0.008
Phosphate (PO4) %, ≤
0.1
0.2
1
Smell
odorless
odorless
odorless
Appearance
White Crystal
White Crystal
Light yellow Liquid

PHOSPHOROUS ACID 99 %

TESTING ITEM
Premium Grade
Grade I
Grade II
Solution
Assay %, ≥
99 %
99 %
99 %
70 %
Chloride (Cl-) %, ≤
0.001
0.005
0.005
0.001
Iron (Fe) %, ≤
0.0005
0.001
0.002
0.001
Sulphate (SO4) %, ≤
0.0005
0.006
0.008
0.008
Phosphate (PO4) %, ≤
0.1
0.1
0.2
0.2
Smell
odorless
odorless
odorless
odorless
Appearance
Pure White Crystal
White Crystal
White Crystal
Clear Colorless
Liquid

  CAS Registry Number:

13598-36-2
  Synonyms: ;Phosphonic acid;hydrogen phosphonate;phosphorus(+3) trihydride cation trihydroxide;Orthophosphorus;Orthophosphorous acid;Ortho-Phosphorous acid;
  Molecular Formula: H3PO3
  Molecular Weight: 81.9957
  Molecular Structure: 13598-36-2 Phosphorous acid
  Hazard Symbols:  C:Corrosive;
  Risk Codes: R22:;
R35:;
  Safety Description: S26:;
S36/37/39:;
S45:;

  Company: LINYI CHUNMING CHEMICAL CO., LTD.     [ China ]        
  Contact: Zhu Ting
  Tel: +86 511 85614905
  Fax: +86 511 85614905
  Email: +86 13912804905
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