Phosphorous Acid (H3PO3) (also known as "Orthophosphorous acid", or "phosphonic acid") is provided as fine, white crystals. It is used in a variety of applications, including the manufacture of phosphite salts. (specialty agricultural fertilizers or fungicides)

CAS: 13598-36-2

HAZARD: Corrosive. Air sensitive. Hygroscopic.

SHIPPING: Packing Group III; Haz Class: 8; UN Number: 2834

USES:

  • Chemical Reducing agent
  • Manufacture of Phosphite salts
  • Nylon brightener

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