Calcium formate

Calcium formate is the calcium salt of formic acid. It is also known as E238. Under this E number it is used as an animal feed preservative within EU, but not in foods intended for people.

Calcium formate
Names
Preferred IUPAC name
Calcium diformate
Other names
  • Formic acid calcium salt
  • calcoform
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.058
EC Number
  • 208-863-7
E number E238 (preservatives)
KEGG
PubChem CID
RTECS number
  • LQ5600000
UNII
  • InChI=1S/2CH2O2.Ca/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2 N
    Key: CBOCVOKPQGJKKJ-UHFFFAOYSA-L Y
  • InChI=1/2CH2O2.Ca/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2
    Key: CBOCVOKPQGJKKJ-NUQVWONBAS
SMILES
  • [Ca+2].[O-]C=O.[O-]C=O
Properties
Ca(HCO2)2
Molar mass 130.113 g/mol
Appearance white-to-yellow crystals or crystalline powder
Odor smells slightly like acetic acid
Density 2.02 g/cm3
Melting point decomposes at 300 °C
16.1 g/100 g (0 °C)
18.4 g/100 g (100 °C)
Solubility insoluble in ethanol
methanol:
0.27 g/100 g (15 °C)
0.23 g/100 g (66 °C)
Hazards
GHS labelling:
Danger
H318
P264, P280, P305+P351+P338, P310, P337+P313
NFPA 704 (fire diamond)
1
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
 rats: 2640 mg/kg (oral), 154 mg/kg (IV)
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).
N verify (what is YN ?)
Infobox references

Calcium formate is stable at room temperature, is inflammable and forms orthorhombic crystals. The mineral form is very rare and called formicaite, and is known from a few boron deposits.

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