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04114 Sigma-Aldrich

Phosphorous acid

≥98.5%

Synonym: Phosphonic acid

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Properties

Related Categories Acids, Acids & Bases, Chemical Synthesis, Inorganic Acids, Synthetic Reagents More...
InChI Key   ABLZXFCXXLZCGV-UHFFFAOYSA-N
assay   ≥98.5%
impurities   ≤0.002% heavy metals (as Pb)
  ≤1% phosphoric acid (H3PO4)
density   1.651 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤10 mg/kg
cation traces   Fe: ≤5 mg/kg

Description

Application

Phosphorous acid (H3PO3) may be used for the synthesis of α-aminomethylphosphonic acids, via Mannich type reaction.

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Laboratory Gloves
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2834 8 / PGIII
WGK Germany 
1
RTECS 
SZ6400000

Documents

Certificate of Analysis

Protocols & Articles

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Peer-Reviewed Papers
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