Calcium formate

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Calcium formate[1]
Calcium formate
Calcium diformate ball-and-stick.png
Systematic IUPAC name
Calcium methanoate
Other names
formic acid calcium salt, calcoform
3D model (JSmol)
ECHA InfoCard 100.008.058
EC Number 208-863-7
E number E238 (preservatives)
RTECS number LQ5600000
Molar mass 130.113 g/mol
Appearance white powder
Odor weak, caramel-like odor
Density 2.009 g/cm3
Melting point decomposes at 300 °C
16.1 g/100 ml (0 °C)
16.6 g/100 ml (20 °C)
18.4 g/100 ml (100 °C)
Solubility insoluble in alcohol
not listed
NFPA 704
Flammability code 0: Will not burn. E.g., waterHealth code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentineReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
Related compounds
Other anions
Calcium acetate
Other cations
Sodium formate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Calcium formate, Ca(HCO2)2 (or. Ca(HCOO)2), is the calcium salt of formic acid, HCOOH. It is also known as food additive E238 in food industry. The mineral form is very rare and called formicaite. It is known from a few boron deposits. It may be produced synthetically by reacting calcium oxide or calcium hydroxide with formic acid.


  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–49, ISBN 0-8493-0594-2