Calcium lactate
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Calcium lactate is a white crystalline salt with formula C
6H
10CaO
6, consisting of two lactate anions H
3C(CHOH)CO−
2 for each calcium cation Ca2+
. It forms several hydrates, the most common being the pentahydrate C
6H
10CaO
6·5H
2O.
Quick Facts Names, Identifiers ...
Names | |
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Preferred IUPAC name
Calcium bis(2-hydroxypropanoate) | |
Other names
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Identifiers | |
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3D model (JSmol) |
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ChEMBL | |
ChemSpider |
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DrugBank | |
ECHA InfoCard | 100.011.278 |
EC Number |
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E number | E327 (antioxidants, ...) |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C6H10CaO6 | |
Molar mass | 218.22 g/mol |
Appearance | white or off-white powder, slightly efflorescent |
Density | 1.494 g/cm3 |
Melting point | 240 °C (464 °F; 513 K) (anhydrous) 120 °C (pentahydrate) |
L-lactate, anhydrous, g/100 mL: 4.8 (10 °C), 5.8 (20 °C), 6.7 (25 °C), 8.5 (30 °C);[1][2] 7.9 g/100 mL (30 °C)[citation needed] | |
Solubility | very soluble in methanol, insoluble in ethanol |
Acidity (pKa) | 6.0-8.5 |
Refractive index (nD) |
1.470 |
Pharmacology | |
A12AA05 (WHO) | |
Hazards | |
GHS labelling: | |
Warning | |
H319 | |
P264, P280, P305+P351+P338, P337+P313 | |
NFPA 704 (fire diamond) | |
Flash point | Not applicable |
No data | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Calcium lactate is used in medicine, mainly to treat calcium deficiencies; and as a food additive with E number of E327. Some cheese crystals consist of calcium lactate.[3][4]