Phosphorous acid manufacturers and suppliers

Phosphorous acid suppliers

Properties

Melting point:: 73 °C

Boiling point:: 200 °C

Density: 1.651 g/mL at 25 °C(lit.)

vapor pressure: 0.001Pa at 20℃

Flash point:: 200°C

storage temp.: 0-6°C

solubility: DMSO (Slightly), Methanol (Slightly), Water (Sparingly)

form: Crystals

pka: pK1 1.29; pK2 6.74(at 25℃)

Specific Gravity: 1.651

color: White

Water Solubility: SOLUBLE

Sensitive: Air Sensitive & Hygroscopic

Merck: 14,7346

Stability:: Stable. Incompatible with strong bases. Hygroscopic.

Safety Information

Symbol(GHS): GHS05,GHS07

Signal word: Danger

Hazard statements: H290-H302-H314

Precautionary statements: P234-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338

Hazard Codes: C

Risk Statements: 22-35

Safety Statements: 26-36/37/39-45

RIDADR: UN 2834 8/PG 3

WGK Germany: 1

RTECS: SZ6400000

F: 3

TSCA: Yes

HazardClass: 8

PackingGroup: III

HS Code: 28092019

Use

Phosphorous acid is used to produce the fertilizer phosphate salt 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.

You can find Phosphorous acid suppliers, manufacturers, and distributors from countries such as CHINA, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.