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  7. Phosphorous acid, 97%, Thermo Scientific Chemicals

Phosphorous acid, 97%, Thermo Scientific Chemicals

Product Code. 11453770
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Quantity:
500 g
2 kg
This item is not returnable. View return policy
This item is not returnable. View return policy

Description

Phosphorus acid is used as an intermediate in the preparation of other phosphorus compounds like potassium phosphite, ammonium phosphite and calcium phosphite. It is actively involved in the preparation of phosphites like aminotris(methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) and 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), which find application in water treatment as a scale or corrosive inhibitor. It is also used in chemical reactions as a reducing agent. Its salt, lead phosphite is used as PVC stabilizer. It is also used as a precursor in the preparation of phosphine and as an intermediate in the preparation of other phosphorus compounds.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 13598-36-2
Molecular Formula H3PO3
MDL Number MFCD00137258
Synonym Phosphonic acid

Specifications

Appearance White crystals
Color White
Melting Point 74°C
Boiling Point 200°C (decomposition)
Density 1.651 g/cm3 at 20°C
Odor Odorless
Sensitivity Air sensitive; Hygroscopic
Assay Percent Range 97%
Quantity 500 g
Physical Form Crystals
UN Number UN2834
Merck Index 14,7346
Solubility Information Soluble in water and alcohol.
Formula Weight 82
Percent Purity 97%
Chemical Name or Material Phosphorous acid
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Safety and Handling

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Product Identifier
  • Phosphorous acid
 Signal Word
  • Danger
 Hazard Category
  • Acute toxicity Category 4
  • Serious eye damage/eye irritation Category 1
  • Substances and mixtures corrosive to metals Category 1
  • Skin corrosion/irritation Category 1 A
 Hazard Statement
  • H290-May be corrosive to metals.
  • H302-Harmful if swallowed.
  • H314-Causes severe skin burns and eye damage.
  • H318-Causes serious eye damage.
 Precautionary Statement
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
  • P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P310-Immediately call a POISON CENTER/doctor/.
 Supplemental information
  • MIXTURE LIST-Contains : Phosphonic acid

RUO – Research Use Only

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