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Alfa Aesar™ Phosphorous acid, 98+%

Chemical Identifiers

Chemical Name or Material Phosphorous acid
CAS 13598-36-2
Molecular Formula H3PO3
Formula Weight 82
MDL Number MFCD00137258
UN Number UN2834
Merck Index 14,7346
Synonym Phosphonic acid
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Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA111890B

  SDS
alfa aesar™
A111890B
1000g CALL N/A N/A
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Description & Specifications

Specifications

Formula Weight 82
Health Hazard 2 GHS H Statement
H314-H318-H302
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
Synonym Phosphonic acid
TSCA TSCA
Health Hazard 1 Danger
CAS 13598-36-2
Melting Point 74°C
Molecular Formula H3PO3
Odor Odorless
Boiling Point 200°C (dec.)
Chemical Name or Material Phosphorous acid
UN Number UN2834
MDL Number MFCD00137258
DOT Information Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: PHOSPHOROUS ACID
Quantity 1000g
Assay ≥98%
Merck Index 14,7346
RTECS Number SZ6400000
Health Hazard 3 GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF SWALLOWED: Rinse mouth.
Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Applications
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 precursor in the preparation of phosphine as well as an intermediate in the preparation of other phosphorus compounds.

Solubility
Soluble in water and alcohol.

Notes
Air sensitive. Hygroscopic. Incompatible with strong bases, oxidizing agents and metals.

Safety and Handling

Danger

GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF SWALLOWED: Rinse mouth.
Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H314-H318-H302
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.