Alfa Aesar Phosphorous acid, 98+%
Manufacturer: Alfa Aesar A111890I
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.
Soluble in water and alcohol.
Air sensitive. Hygroscopic. Incompatible with strong bases, oxidizing agents and metals.
Safety and Handling
SDS & Safety Documents
GHS H Statement
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
GHS P Statement
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.
IF SWALLOWED: Rinse mouth.
Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOTInformation : Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: PHOSPHOROUS ACID
RTECSNumber : SZ6400000
TSCA : TSCA