Back Koper(II)asetaat Afrikaans أسيتات النحاس الثنائي Arabic استات پاخیر (II) AZB Acetat de coure(II) Catalan Octan měďnatý Czech Kobber(II)acetat Danish Kupfer(II)-acetat German Kupra (II) acetato Esperanto Acetato de cobre(II) Spanish Kobre(II) azetato Basque

Copper(II) acetate

Copper(II) acetate

Small crystals of copper(II) acetate
Copper(II) acetate hydrate
Copper(II) acetate monohydrate
Names
IUPAC name
Tetra-μ2-acetatodiaquadicopper(II)
Other names
Copper(II) ethanoate
Cupric acetate
Copper acetate
Verdigris
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.049 Edit this at Wikidata
EC Number
  • 205-553-3
UNII
UN number 3077
  • InChI=1S/2C2H4O2.Cu/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 checkY
    Key: OPQARKPSCNTWTJ-UHFFFAOYSA-L checkY
  • InChI=1/2C2H4O2.Cu/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: OPQARKPSCNTWTJ-NUQVWONBAO
  • [O+]1C(C)O[Cu-3]23([OH2+])[O+]C(C)O[Cu-3]1([OH2+])(OC(C)[O+]2)OC(C)[O+]3
Properties
Cu(CH3COO)2
Molar mass 181.63 g/mol (anhydrous)
199.65 g/mol (hydrate)
Appearance Dark green crystalline solid
Odor Odorless (hydrate)
Density 1.882 g/cm3 (hydrate)
Melting point 115 °C (anhydrous) [1]

Undetermined (hydrate)[2]

Boiling point 240 °C (464 °F; 513 K)
Hydrate:
7.2 g/100 mL (cold water)
20 g/100 mL (hot water)
Solubility Soluble in alcohol
Slightly soluble in ether and glycerol
1.545 (hydrate)
Structure
Monoclinic
Hazards
GHS labelling:
GHS05: CorrosiveGHS06: ToxicGHS07: Exclamation markGHS09: Environmental hazard
Danger
H301, H302, H311, H314, H410, H411, H412
P260, P264, P270, P273, P280, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P361, P363, P391, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
710 mg/kg oral rat[4]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 1 mg/m3 (as Cu)[3]
REL (Recommended)
 TWA 1 mg/m3 (as Cu)[3]
IDLH (Immediate danger)
 TWA 100 mg/m3 (as Cu)[3]
Safety data sheet (SDS) Baker MSDS
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 ?)

Copper(II) acetate, also referred to as cupric acetate, is the chemical compound with the formula Cu(OAc)2 where AcO− is acetate (CH
3CO−
2). The hydrated derivative, Cu2(OAc)4(H2O)2, which contains one molecule of water for each copper atom, is available commercially. Anhydrous copper(II) acetate is a dark green crystalline solid, whereas Cu2(OAc)4(H2O)2 is more bluish-green. Since ancient times, copper acetates of some form have been used as fungicides and green pigments. Today, copper acetates are used as reagents for the synthesis of various inorganic and organic compounds.[5] Copper acetate, like all copper compounds, emits a blue-green glow in a flame.

  1. ^ "Copper(II) acetate | C4H6CuO4 | ChemSpider".
  2. ^ Trimble, R. F. (1976). "Copper(II) acetate monohydrate - An erroneous melting point". Journal of Chemical Education. 53 (6): 397. Bibcode:1976JChEd..53..397T. doi:10.1021/ed053p397.
  3. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).
  4. ^ "Mineral Safety Data Sheet: Copper (II) Acetate, Monohydrate" (PDF). Archived from the original (PDF) on 2011-09-28. Retrieved 2011-06-14.
  5. ^ Richardson, H. Wayne. "Copper Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a07_567. ISBN 978-3527306732.

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