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Specifications
1.High quality and nice price;
2.free sample provided;
3.Payment terms:after quality confirmed
4.CASNo.13598-36-2
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Product Description
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? Phosphorous acid H3PO3
Basic information:
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- |
Usage | Widely used as the raw materials to make phosphorous |
Export | Film Plastic Knitted Bag,kraft paper complex bag inner |
Quality Index: (The Chemistry Industry HG/T2520-93Standards of the Peoples Republic of China)
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Inspection items | ?????????????? The degree of the products | ||
Best Grade | Best Grade | First grade | |
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.
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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.
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? 25kg / 500kg / 1000kg in woven bag lined with double layer polythene bag marked with "CORROSIVE" label
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Biddle Sawyer Fortune Chem ( Asian Sales Division of Biddle Sawyer New York ) sells proven quality of PHOSPHOROUS ACIDon a regular basis.
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Contact Point :
Mr.S. M. Kang, CEO
Mr.Jingu Kang, Manager
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Tel : 82-(0)51-701-9121
Fax : 82-(0)51-701-9125
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Please click “ CONTACT SUPPLIER “ above so that we may reply therein or inform you the person in charge name and his/her email address and company website.
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All Payment including shipping documents procedure and strict quality management to be done by Biddle Sawyer New York in cooperation with very well-trained ( including TBM : Time Based Management ) Biddle Sawyer’s overseas offices and affiliations
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