醋酸钴

Description

Cobalt Acetate · CAS 71-48-7 · C4H6CoO4. UNII 3XC4P44U7E. Melting Point: 284 °F (USCG, 1999); Melting Point: 298 °C (decomposes).

Identification

CAS Registry Number	71-48-7
PubChem CID	6277
Molecular formula	C4H6CoO4
IUPAC name	cobalt(2+) diacetate
UNII (FDA)	3XC4P44U7E

Computed Descriptors

Molecular Weight	177.02
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	176.959802
Monoisotopic Mass	176.959802
Topological Polar Surface Area	80.3
Heavy Atom Count	9
Formal Charge	0
Complexity	25.5

Physical & Chemical Properties

Melting Point	284 °F (USCG, 1999)
Melting Point	298 °C (decomposes)

Physical description & handling notes

• Cobalt acetate is a red-violet crystalline solid. Vinegar-like odor. (USCG, 1999)
• Liquid; Dry Powder
• Light-pink solid; [Merck Index] Pink crystals, soluble in water; [MSDSonline]
• Light pink crystals
• Pink crystals
• Vinegar-like odor

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS COBALTOUS ACETATE--PROHIBITED WITH EXCEPTIONS
GHS notification summary	93.3% (97 / 104)

GHS Hazard Classification

GHS notification summary	93.3% (97 / 104)
Reported hazard statements	H317, H334, H341, H400, H410, H350 (96%), H360 (96.9%), H302

Documented Uses

• Used as a bleaching agent, drier for coatings, catalyst, and foam stabilizer; Also used in sympathetic inks, feed additives, and in anodizing; [HSDB]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Farming (Feed Additives) [Category: Industry]
• Bleaching agent and drier for lacquers, varnishes; in anodizing; catalyst for oxidation and esterification; foam stabilizer for malt beverages.
• Sympathetic inks, paint and varnish driers, catalyst, anodizing, mineral supplement in feed additives, foam stabilizer.
• Cobalt (II) acetate can be used as antidote for cyanide poisoning. Major used include: foam stabilizer for malt beverages; bleaching agent and drier for lacquers, varnishes; anodizing agent; catalyst for oxidation and esterification (A597, T66).

Synonyms

Cobalt(II) acetate; 71-48-7; Cobalt acetate; Cobalt diacetate; Bis(acetato)cobalt; Cobaltous diacetate; COBALTOUS ACETATE; Cobalt(2+) acetate; Cobalt di(acetate); cobalt(2+) diacetate; Cobalt acetate (Co(OAc)2); DTXSID6026373; 3XC4P44U7E; DTXCID506373; CHEBI:85138; NSC-78410

Frequently Asked Questions

What are the CAS number and molecular formula of Cobalt Acetate?

CAS 71-48-7; molecular formula C4H6CoO4; molecular weight — g/mol.

What other names is Cobalt Acetate known by?

Cobalt(II) acetate, 71-48-7, Cobalt acetate, Cobalt diacetate, Bis(acetato)cobalt, Cobaltous diacetate.

What is the regulatory status of Cobalt Acetate?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; COBALTOUS ACETATE--PROHIBITED WITH EXCEPTIONS.

Is Cobalt Acetate classified as hazardous?

93.3% of GHS notifications report no hazard classification (97 of 104).

What are the key physical properties of Cobalt Acetate?

Melting Point: 284 °F (USCG, 1999); Melting Point: 298 °C (decomposes).

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.