Calcium acetate

Calcium acetate

Calcium acetate crystals
Names
Preferred IUPAC name
Calcium diacetate[1]
Other names
Acetate of lime
Calcium ethanoate
Identifiers
3D model (JSmol)
Abbreviations Ca(OAc)2
3692527
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.000.492 Edit this at Wikidata
EC Number
  • 269-613-0
E number E263 (preservatives)
22320
KEGG
RTECS number
  • AF7525000
UNII
  • InChI=1S/2C2H4O2.Ca/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 checkY
    Key: VSGNNIFQASZAOI-UHFFFAOYSA-L checkY
  • InChI=1/2C2H4O2.Ca/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: VSGNNIFQASZAOI-NUQVWONBAW
  • CC(=O)O[Ca]OC(=O)C
  • [Ca+2].[O-]C(=O)C.[O-]C(=O)C
Properties
C4H6CaO4
Molar mass 158.166 g/mol (anhydrous)
176.181 g/mol (monohydrate)
Appearance White solid
hygroscopic
Odor slight acetic acid odor
Density 1.509 g/cm3
Melting point 160 °C (320 °F; 433 K)[2] decomposition to CaCO3 + acetone
37.4 g/100 mL (0 °C)
34.7 g/100 mL (20 °C)
29.7 g/100 mL (100 °C)
Solubility slightly soluble in methanol, hydrazine
insoluble in acetone, ethanol and benzene
Acidity (pKa) ca. 0.7
-70.7·10−6 cm3/mol
1.55
Pharmacology
V03AE07 (WHO)
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
680 to 730 °C (1,256 to 1,346 °F; 953 to 1,003 K)
Lethal dose or concentration (LD, LC):
4280 mg/kg (oral, rat)
Related compounds
Other cations
 Magnesium acetate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Calcium acetate is a chemical compound which is a calcium salt of acetic acid. It has the formula Ca(C2H3O2)2. Its standard name is calcium acetate, while calcium ethanoate is the systematic name. An older name is acetate of lime. The anhydrous form is very hygroscopic; therefore the monohydrate (Ca(CH3COO)2•H2O) is the common form.

  1. ^ International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 801. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
  2. ^ Dale L. Perry (May 19, 2011). Handbook of Inorganic Compounds (Second ed.). Taylor & Francis. p. 84. ISBN 978-1-4398-1461-1.