Zinc acetate

Zinc acetate is a salt with the formula Zn(CH3CO2)2, which commonly occurs as the dihydrate Zn(CH3CO2)2·2H2O. Both the hydrate and the anhydrous forms are colorless solids that are used as dietary supplements. When used as a food additive, it has the E number E650.

Zinc acetate
Names
IUPAC name
Zinc acetate
Other names
Acetic acid, Zinc salt
Acetic acid, Zinc(II) salt
Dicarbomethoxyzinc
Zinc diacetate
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.008.338
EC Number
  • 209-170-2
E number E650 (flavour enhancer)
RTECS number
  • ZG8750000
UNII
UN number 3077
  • InChI=1S/2C2H4O2.Zn/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 Y
    Key: DJWUNCQRNNEAKC-UHFFFAOYSA-L Y
  • InChI=1/2C2H4O2.Zn/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: DJWUNCQRNNEAKC-NUQVWONBAP
  • [Zn+2].[O-]C(=O)C.[O-]C(=O)C
  • basic zinc acetate: C/C1=[O]/[Zn]\35O/C(C)=[O+]\[Zn]\26\[O]=C(C)/O[Zn]4(O1)/[O]=C(C)\O[Zn](=[O]/C(C)=[O]2)(O/C(C)=[O]3)[O]456
Properties
Zn(CH3COO)2(H2O)2 (dihydrate)
Molar mass 219.50 g/mol (dihydrate)
183.48 g/mol (anhydrous)
Appearance White solid (all forms)
Density 1.735 g/cm3 (dihydrate)
Melting point Decomposes at 237 °C (459 °F; 510 K) (dihydrate loses water at 100 °C)
Boiling point decomposes
43 g/100 mL (20 °C, dihydrate)
Solubility 1.5 g/100 mL (methanol)
−101.0·10−6 cm3/mol (+2 H2O)
Structure
octahedral (dihydrate)
tetrahedral
Pharmacology
A16AX05 (WHO)
Hazards
GHS labelling:
Danger
H302, H318, H319, H410, H411
P264, P270, P273, P280, P301+P312, P305+P351+P338, P310, P330, P337+P313, P391, P501
Related compounds
Other anions
 Zinc chloride
Other cations
 Copper(II) acetate
Related compounds
 Basic beryllium acetate
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
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