草酸铜(II)半水合物

Description

Copper(II)oxalate hemihydrate · CAS 814-91-5 · C2CuO4. UNII BN136S94FS.

Identification

CAS Registry Number	814-91-5
PubChem CID	13148
Molecular formula	C2CuO4
IUPAC name	copper oxalate
UNII (FDA)	BN136S94FS

Computed Descriptors

Molecular Weight	151.56
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	150.909256
Monoisotopic Mass	150.909256
Topological Polar Surface Area	80.3
Heavy Atom Count	7
Formal Charge	0
Complexity	60.5

Physical description & handling notes

• Cupric oxalate is an odorless bluish-white solid. Denser than water and insoluble in water. Hence sinks in water. Used as a catalysts for organic reactions.
• Blue-white solid; Practically insoluble in water; [Merck Index] Blue or white powder; [MSDSonline]
• Blue-white powder
• Bluish-green powder
• Solubility: 0.00253 g/100 ml water @ 25 °C /Hemihydrate/
• Sol in ammonium hydroxide, insol in acetone, acid; Molecular wt 160.57; blue whitish crystals /Hemihydrate/

GHS Hazard Classification

Reported hazard statements	H302, H312 (98.2%), H400 (62.3%), H410 (62.3%)

Documented Uses

• Used as an organic catalyst, a polyformaldehyde stabilizer, an anticaries agent, and in seed treatments to repel birds and rodents; [Merck Index]
• As catalyst for organic reactions; as stabilizer for acetylated polyformaldehyde; in seed treatments to repel birds and rodents.
• As a stabilizer for acetylated polyformaldehyde and as a catalyst in organic reactions.
• Prepared by precipitation from a mixture of a copper(II) salt and sodium oxalate solution
• Prepd by reaction of cupric sulfate with oxalic acid: David, Bull Soc Chim France p 719 (1960).
• Copper, [ethanedioato(2-)-.kappa.O1,.kappa.O2]-: ACTIVE

Synonyms

CUPRIC OXALATE; Copper oxalate; 814-91-5; Copper(II) oxalate; Oxalic acid copper(2+) salt (1:1); Caswell No. 248A; Cupric oxalate (1:1); HSDB 265; EINECS 212-411-4; UNII-BN136S94FS; NSC 86015; EPA Pesticide Chemical Code 023305; NSC 112246; Ethanedioic acid, copper(2+) salt (1:1); Ethanedioic acid, copper(2++) salt (1:1); CUPRIC OXALATE [MI]

Frequently Asked Questions

What are the CAS number and molecular formula of Copper(II)oxalate hemihydrate?

CAS 814-91-5; molecular formula C2CuO4; molecular weight — g/mol.

What other names is Copper(II)oxalate hemihydrate known by?

CUPRIC OXALATE, Copper oxalate, 814-91-5, Copper(II) oxalate, Oxalic acid copper(2+) salt (1:1), Caswell No. 248A.

Is Copper(II)oxalate hemihydrate classified as hazardous?

Hazard statements reported: H302, H312, H400, H410.

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.