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ChemicalBook >> CAS DataBase List >> CALCIUM PHOSPHITE

CALCIUM PHOSPHITE

CALCIUM PHOSPHITE price.
  • $505.24
  • Product name: CALCIUM PHOSPHITE
  • CAS: 21056-98-4
  • MF: CaHO3P
  • MW: 120.06
  • EINECS:244-182-1
  • MDL Number:MFCD00053958
  • Synonyms:calcium hydrogen phosphonate ;Phosphonic acid calcium salt;CALCIUM PHOSPHITE;CALCIUM PHOSPHITE MONOHYDRATE;Phosphonic acid, calcium salt (1:1)
Price1 Properties Safety Information Description
1 prices
Selected condition：
Brand
  • American Custom Chemicals Corporation
Package
  • 5MG
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberING0008670
  • Product descriptionCALCIUM PHOSPHITE MONOHYDRATE 95.00%
  • Packaging5MG
  • Price$505.24
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
American Custom Chemicals Corporation ING0008670 CALCIUM PHOSPHITE MONOHYDRATE 95.00% 5MG $505.24 2021-12-16 Buy

Properties

Boiling point :400℃[at 101 325 Pa]
Density :2.32[at 20℃]
pka :6.69[at 20 ℃]
Water Solubility :slightly soluble H2O; insoluble alcohol [MER06]
EPA Substance Registry System :Phosphonic acid, calcium salt (1:1) (21056-98-4)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321 Specific treatment (see … on this label).
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.

Description

Calcium phosphite can have the molecular formula of CaHPO3 or Ca(H2PO3)2. It is the former that appears when a solution of phosphorous acid is reacted with the oxide, hydroxide or carbonate:
CaO +H3PO3 ? CaHPO3·H2O +H2O
The product is a monohydrate. It can also be prepared by the action of ammonium phosphite on calcium chloride:
CaCl2 (aq) +NH4HPO3 (aq) ? CaHPO3·H2O +NH4Cl2 (aq)
A white, crystalline powder is obtained. The solubility of CaHPO3·H2O has apparently not been determined exactly. If heated to about 250°C, the anhydrate results. This is stable when heated further up to about 320°C where it decomposes to form phosphine and hydrogen:
3CaHPO3 + heat ? 2PH3 + 3Ca(PO3)2 +H2

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