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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.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



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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