Phosphorous acid

Phosphorous acid is a highly versatile chemical used as intermediate in the production of a variety of chemicals and products. Can be used as rust protection for metal treatment purposes.

H3PO3

Details


Chemical Formula

H3PO3

EC Number

237-066-7

CAS Number

13598-36-2

Industries
  • Surface treatment & Coatings
  • Industry chemicals
  • Home & Personal care
Applications
  • Fertilizer
  • Lubricants & Greases
  • Cleaning products
  • Water treatment
  • Processing aid
  • Intermediate

Specification


  • Phosphorous acid: ≥99%
  • Arsenic (As): ≤1 ppm
  • Chloride (Cl): ≤0.005%
  • Iron (Fe): ≤10 ppm
  • Sulphate (SO₄²⁻): ≤0.008%
  • Phosphates (PO₄): ≤0.2%

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