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Calcium Phosphite, with the molecular formula CaHPO3 or Ca(H2PO3)2, is a colorless, monoclinic crystal that loses water at around 150°C. It is slightly soluble in water but insoluble in alcohol. The anhydrate form, CaHPO3, remains stable in air even when exposed to heat at 95°C for extended periods. It can be synthesized through various methods, such as reacting phosphorous acid with an oxide, hydroxide, or carbonate, or by the action of ammonium phosphite on calcium chloride, resulting in a white, crystalline powder.

21056-98-4

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21056-98-4 Usage

Uses

Used in Fertilizers:
Calcium Phosphite is utilized as a component in the fertilizer industry due to its ability to provide essential phosphorus nutrients to plants, promoting growth and development.
Used in Polymerization Catalysts:
In the chemical industry, Calcium Phosphite serves as a catalyst in the polymerization process, enhancing the efficiency and effectiveness of the reaction, leading to improved product quality and performance.

Flammability and Explosibility

Notclassified

Check Digit Verification of cas no

The CAS Registry Mumber 21056-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,5 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21056-98:
(7*2)+(6*1)+(5*0)+(4*5)+(3*6)+(2*9)+(1*8)=84
84 % 10 = 4
So 21056-98-4 is a valid CAS Registry Number.
InChI:InChI=1/Ca.H3O3P/c;1-4(2)3/h;4H,(H2,1,2,3)/q+2;/p-1

21056-98-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name CALCIUM PHOSPHITE

1.2 Other means of identification

Product number -
Other names calcium hydrogen phosphonate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21056-98-4 SDS

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