Product Information
Chemical Name Phosphorous Acid
CAS # 13598-36-2
Formula H3PO3
Synonym Orthophosphorous acid; Phosphorousacidcrystalline; Phosphonic acid
Physical Properties
Appearance: White crystalline solid
Molecular Weight: 82
Density: 1.651
Boiling Point: 200ºC
Melting Point: 73ºC
Flash Point: 200°C
Storage Temperature: 0-6°C
Solubility: 310 g/100 mL in water; Soluble in alcohol
Specification
| Grade |
98.5% |
99% |
| Appearance |
White Crystal |
White Crystal |
| Assay (H3PO3) |
98.5% Min |
99% Min |
| Phosphate (PO4) |
0.2% Max |
0.2% Max |
| Sulfate (SO4) |
30ppm Max |
30ppm Max |
| Iron (Fe) |
20ppm Max |
15ppm Max |
| Chloride (Cl) |
0.01% Max |
0.01% Max |
| Oder |
No |
No |
Application
- In industry and agriculture
The most important use of phosphorous acid is the production of phosphonates which are used in water treatment. Phosphorous acid is also used for preparing phosphite salts, such as potassium phosphite.
- As a chemical reagent
Phosphorous acid is used in chemical reactions as a reducing agent that is somewhat less vigorous than the related hypophosphorous acid.
Packing
25kg bag, 25mt per 20FCL container..
.. Storage & Handling
Phosphorous Acid can be stored at room temperature (max. 25ºC) in the unpened original containers for at least 3 years.
The storage temperature should be kept below 25 25ºC
About us
Hefei TNJ Chemical Industry Co., Ltd., established in 2001, is a key chemical manufacturer and supplier in China.
In 2001, three young chemists from a local large state-owned chemical factory established TNJ Chemical by starting from producing PVP products. By taking advantage of technology innovation, TNJ made fast and steady development in PVP. Meanwhile, in order to further enhance comprehensive competence, TNJ begun to seek for products diversity and invested more chemical lines to meet market demands. Up to 2015, TNJ owns key products of more than 60 which covers four fields: Chemicals, Food, Pharmaceutical and Personal care.
Through over 15 years of development, TNJ has become an international and diversified modern chemical company. About 60% of our products are exported to overseas which turns over about 20 Million US dollars per year. In 2015, TNJ was awarded as the top 10 exporting giants in Anhui province.
TNJ always adheres to harmonious development. Beyond the economic success, TNJ focuses on environmental protection and social development. In TNJ, all aspects strictly comply with environmental protection standard and regulation set by State Environmental Protection Department of China. As a responsible company, TNJ contributes to social development by producing high-quality assured chemicals and creating more and more jobs. TNJ is also committed to charity annually including supporting students from poor families to continue education etc.
We believe in Better Chemicals, Better Future. We are on the way to become a responsible world-class chemical company through innovation and stable development.
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