无水醋酸铜

Description

Cupric acetate · CAS 142-71-2 · C4H6CuO4. UNII 39M11XPH03. Melting Point: 239 °F (USCG, 1999).

Identification

CAS Registry Number	142-71-2
PubChem CID	8895
Molecular formula	C4H6CuO4
IUPAC name	copper diacetate
UNII (FDA)	39M11XPH03

Computed Descriptors

Molecular Weight	181.63
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	180.956206
Monoisotopic Mass	180.956206
Topological Polar Surface Area	80.3
Heavy Atom Count	9
Formal Charge	0
Complexity	25.5

Physical & Chemical Properties

Melting Point	239 °F (USCG, 1999)

Physical description & handling notes

• Cupric acetate appears as a blue-green crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used as an insecticide, in the preparation of other chemicals, as a fungicide, and mildew preventive.
• Blue-green hygroscopic solid; [HSDB] Green, odorless, hygroscopic crystals; Soluble in water; [Alfa Aesar MSDS]
• Blue-green hydroscopic powder
• 1.9 at 68 °F (USCG, 1999) - Denser than water; will sink
• When heated to decomposition it emits acrid smoke & irritating fumes.
• INDEX OF REFRACTION: 1.545, 1.550; SOL 7.2 G/100 CC COLD WATER; 20 G/100 CC HOT WATER /MONOHYDRATE/

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Skin conditioning
GHS notification summary	6.8% (41 / 605)

GHS Hazard Classification

GHS notification summary	6.8% (41 / 605)
Reported hazard statements	H301 (19.8%), H302 (73.4%), H311 (19.8%), H314 (35.9%), H318 (37%), H400 (44.3%), H410 (22.1%), H411 (31.2%)

Documented Uses

• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Ceramics making [Category: Hobbies]
• Intermediate in manufacture of Paris Green; as fungicide /former/; as catalyst for organic reactions, incl rubber aging; in textile dyeing; as pigment for ceramics
• As insectide; mildew preventive
• Fabrics, textiles, pigment, catalyst
• For more Uses (Complete) data for COPPER(II) ACETATE (7 total), please visit the HSDB record page.

Synonyms

Copper(II) acetate; 142-71-2; CUPRIC ACETATE; Copper diacetate; Copper(2+) diacetate; Venus copper; Copper(2+) acetate; Crystals of venus; Crystallized verdigris; copper (II) acetate; Cupric diacetate; Octan mednaty; Neutral verdigris; Acetate de cuivre; Acetic acid, copper(2+) salt; Acetic acid, cupric salt

Frequently Asked Questions

What are the CAS number and molecular formula of Cupric acetate?

CAS 142-71-2; molecular formula C4H6CuO4; molecular weight — g/mol.

What other names is Cupric acetate known by?

Copper(II) acetate, 142-71-2, CUPRIC ACETATE, Copper diacetate, Copper(2+) diacetate, Venus copper.

What is the regulatory status of Cupric acetate?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Skin conditioning.

Is Cupric acetate classified as hazardous?

6.8% of GHS notifications report no hazard classification (41 of 605).

What are the key physical properties of Cupric acetate?

Melting Point: 239 °F (USCG, 1999).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.