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Quick Details

  • Classification: Phosphorous Acid
  • CAS No.: 13598-36-2
  • MF: H3PO3
  • EINECS No.: 237-066-7
  • Place of Origin: China (Mainland)
  • Grade Standard: Industrial Grade
  • Purity: 99%
  • Appearance: white crystalline powder
  • Application: reducing agent, water treatment, chemical use

Packaging & Delivery

Packaging Details 25/50/1000 bag, woven bag with PE bag.
Besides, we offer custom-made bag.
Delivery Time 15 days after advance or L/C

Product description



Inspection items



White Crystal

Content (H3PO3),%

99.0 min

Iron (as Fe),%

0.001 max

Chloride (as Cl),%

0.01 max

Sulphate (as SO4),%

0.008 max

Phosphate (as PO4),%

0.2 max

Heavy metal (as Pb),%

0.001 max




Industrial use, as reducing agent, nylon brightening agent, raw material of water treatment chemicals.


Chemical use, as raw material of sub-phosphate, analytical reagent etc.




25/50/1000 bag, woven bag with PE bag.


Besides, we offer custom-made bag.



Company information


Wuhan Kangzheng Science and T&echnology Co., Ltd was established in 2002. It's an export-oriented company, which is specialized in Fertilizers, Feed & Food Additives and Industrial Chemicals, especially Ammonium Nitrate, UAN, APP, Ammonium Sulphate, Ferrous Sulphate, Magnesium Sulphate, DCP, MCP, Baking Soda etc. to Oceania, Asia, Middle East, Europe, Africa, North America, South America, ect., have many years exporting experiences and have a great advantage of transportation.

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Transaction Overview


Transaction Details

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China (Mainland) | Trading Company
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Supplier's Trade Assurance Limit: US $31,000
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