Phosphorous Acid

• 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:

  

• 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