CALCIUM PHOSPHITE

$505.24 - $505.24

Product nameCALCIUM PHOSPHITE
Cas No21056-98-4
MFCaHO3P
MW120.06
EINECS244-182-1
MDL NumberMFCD00053958

Synonyms

calcium hydrogen phosphonate ;Phosphonic acid calcium salt;CALCIUM PHOSPHITE;CALCIUM PHOSPHITE MONOHYDRATE;Phosphonic acid, calcium salt (1:1)

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Price

1 prices

Brand less more

American Custom Chemicals Corporation
Package less more

5mg

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Brand	Packaging	Price	Product name
American Custom Chemicals Corporation ING0008670	5MG	$505.24	CALCIUM PHOSPHITE MONOHYDRATE

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)

Signal word

Warning

Hazard statements

H315：Causes skin irritation

H319：Causes serious eye irritation

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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Suppliers and manufacturers

Henan Tianfu Chemical Co.,Ltd.
Hubei xin bonus chemical co. LTD
Hubei yongkuo Technology Co., Ltd
Hubei Xinkang Pharmaceutical Chemical Co., Ltd
Hubei Shishun Biotechnology Co. Ltd
Hubei Baidu Chemical Co., Ltd
Hubei Guangao Biotechnology Co., Ltd
Hubei Wande Chemical Co., Ltd
Tianmen Hengchang Chemical Co., Ltd
Hubei Qifei Pharmaceutical Chemical Co., Ltd

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