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Calcium Phosphite

IDENTIFICATION

Synonyms: Calcium phosphite Monohydrate; CaHPO3; CaHPO3.H2O; Phosphonic acid calcium salt; calcium hydrogen phosphonate monohydrate
CAS No.: 21056-98-4
EC No.:
Molecular Formula: CaHPO3.H2O
Molecular Weight: 138.08
Density:
M.p.: °C
B.p.: °C (anhydrous)
Solubility: Slightly soluble in water, practically insoulble in alcohol

PREPARATION

Calcium phosphite is made by reaction between calcium hydroxide and phosphorous acid:

Ca(OH)2 + H3PO3 = CaHPO3.H2O + H2O

APPLICATION

Calcium Phosphite Monohydrate is mainly used to prepare anti-rust coatings with properties of non-toxic, strong adhesion, good flexibility and strong hiding power. Calcium phosphite can also be used as fertilizer, food/feed additive, anti-oxidant and raw material for pharmaceuticals.

SPECIFICATION
Appearance fine white powder
Content 98.0% min.
Chlorides 0.01% max.
Heavy Metals as Pb 5 ppm max.
STANDARD PACKAGING

50lbs, 25kgs, 500kg, 1000kgs bag

RISKS & SAFETY INFORMATION

Calcium Phosphite is NOT regulated by UN as hazardous goods.

Keep bags tightly closed in dry and cool place, avoid direct sun-light.

Avoid contact with skin and eyes.

Avoid breathing dust.

Keep clear from drains.

No hazard

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