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Quick Details

  • Classification: Phosphorous Acid
  • CAS No.: 13598-36-2
  • Other Names: Phosphonic Acid
  • MF: H3PO3
  • EINECS No.: 237-066-7
  • Place of Origin: Shanghai, China (Mainland)
  • Grade Standard: Agriculture Grade, Industrial Grade
  • Purity: 99% min, 98.5% min
  • Appearance: White Crystal
  • Application: synthesis of phosphite salts, plastic stabilizers, pesticides, etc.
  • Brand Name: KIMA
  • Model Number: 13598-36-2
  • Certificate: ISO9001
  • UN No.: 2834
  • Molecular Weight: 82.00
  • Solubility: Easily soluble in water and alcohol
  • Delivery: Prompt
  • Relative Density: 1.651 (21.1 °C)

Packaging & Delivery

Packaging Details 25kg / 500kg / 1000kg in woven bag lined with double layer polythene bag.
Delivery Time Prompt
Specifications

1.  Chemical Name:  Phosphorous Acid

2.  Synonyms: Orthophosphorous acid; Phosphonic acid

3.   CAS No.: 13598-36-2

4.   EC No.: 233-663-1

5.  Transportation Info:

Class 8;

UN2834;

PG III

 

                                                                       Phosphorous acid

Molecular weight
81.99
CAS No.
13598-36-2
Density
1.65
Melting point
73

Boiling point

200
Character
Achromatic crystal,density1.65g/m3,better hygroscopi-
city,dissolved easily in the water,has corrosive characteristics
Usage
Widely used as the raw materials to make phosphorous
acid salt,used as the raw materials for making of plastic
stabilizator in the plastic industry,used as reducer in
chemical reaction,also used in the olefin industry,
agricultural chemical industry and so on.
Export
Film Plastic Knitted Bag,kraft paper complex bag inner
layer,double layers plastic bag with net weight of 25kg

 

          Quality Index(The Chemistry Industry HG/T2520-93Standards of the Peoples Republic of China)

 

Inspection items
               The degree of the products
Best Grade
Products
Best Grade
Products
First grade
products
Main contents(counted with H3PO3)
99
98.5
98
Iron(counted with Fe)
0.001
0.0015
0.0020
Chloride(counted with C1)
0.008
0.01
0.01
Sulfate(counted with SO4)
0.001
0.002
0.002
Phosphate(counted with SO4)
0.1

0.2

0.2
Complexion
White crystal
White crystal
White crystal
Water solution experiments
White crystal
Clear and achromatic
Clear and achromatic

 

Properties
Phosphorous acid is a colorless crystal. It can be slowly oxidized to phosphoric acid in the air. When heated to 180 °C, it can be decomposed into phosphoric acid and phosphine (highly toxic). As a dibasic acid, it has slightly ber acidity than phosphoric acid. Phosphorous acid has b reducibility and can easily reduce Ag+ to metal silver. It can also reduce sulfuric acid to sulfur dioxide. It is corrosive and has b hygroscopicity.
Relative Density: 1.651 (21.1 °C)
Melting Point: 73.6 °C
Boiling Point: 200 °C (Decomposes)
Solubility: Easily soluble in water and alcohol.

 

Applications
Phosphorous acid is mainly used in the production of phosphates, synthetic fibers and organophosphorus pesticides, etc.. It is also used in producing high performance water treating agent ATMP.

 

Package
25kg / 500kg / 1000kg in woven bag lined with double layer polythene bag.
The packaging should be marked with "CORROSIVE"sign.

 

Output
30,000 tons per year

 

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