Copper (II) Bromide

Description

Copper (II) Bromide · CAS 7789-45-9 · Br2Cu. UNII 1KC430K0ZN. Boiling Point: 900 °C; Melting Point: 928 °F (USCG, 1999); Melting Point: 498 °C.

Identification

CAS Registry Number	7789-45-9
PubChem CID	24611
Molecular formula	Br2Cu
IUPAC name	dibromocopper
UNII (FDA)	1KC430K0ZN

Computed Descriptors

Molecular Weight	223.35
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	222.76422
Monoisotopic Mass	220.76627
Topological Polar Surface Area	0
Heavy Atom Count	3
Formal Charge	0
Complexity	2.8

Physical & Chemical Properties

Boiling Point	900 °C
Melting Point	928 °F (USCG, 1999)
Melting Point	498 °C
Density	4.710 @ 20 °C/4 °C

Physical description & handling notes

• Copper(ii) bromide is an odorless black solid. Sinks and mixes with water. (USCG, 1999)
• Almost black, deliquescent solid; Very soluble in water; [HSDB] Below 29 deg C, the green tetrahydrate forms; [Ullmann] Black, odorless, hygroscopic crystalline powder; [Alfa Aesar MSDS]
• Almost black, iodine like, monoclinic crystals or crystalline powder
• Very sol in water; sol in alcohol, acetone, ammonia; practically insol in benzene, ether, concentrated sulfuric acid
• Very sol in water; sol in ethanol, acetone; insoluble in benzene, ethyl ether
• 126 parts/100 parts water

GHS Hazard Classification

Reported hazard statements	H302 (99.5%), H314 (100%), H318 (71.9%), H400 (74.9%), H410 (75.9%)

Documented Uses

• Used as an intensifier in photography, brominating agent in organic synthesis, humidity indicator, wood preservative, electrolyte in batteries, stabilizer for acetylated polyformaldehyde, in metal machining, removing lead from gasoline, copying processes, and sulfur extraction of oil; [HSDB]
• Metal Machining [Category: Heat or Machine]
• Petroleum Production and Refining [Category: Industry]
• Battery Manufacturing [Category: Industry]
• Applying Wood Preservatives [Category: Other]
• Photographic Processing [Category: Other]

Synonyms

Copper(II) bromide; 7789-45-9; CUPRIC BROMIDE; Dibromocopper; Copper bromide (CuBr2); 1KC430K0ZN; DTXSID7064863; Cuprum Bromatum; RefChem:58532; DTXCID9048067; CUPRIC BROMIDE, ANHYDROUS; 232-167-2; Copper (II) bromide; Copper dibromide; UNII-1KC430K0ZN; HSDB 257

Frequently Asked Questions

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

CAS 7789-45-9; molecular formula Br2Cu; molecular weight — g/mol.

What other names is Copper (II) Bromide known by?

Copper(II) bromide, 7789-45-9, CUPRIC BROMIDE, Dibromocopper, Copper bromide (CuBr2), 1KC430K0ZN.

Is Copper (II) Bromide classified as hazardous?

Hazard statements reported: H302, H314, H318, H400, H410.

What are the key physical properties of Copper (II) Bromide?

Boiling Point: 900 °C; Melting Point: 928 °F (USCG, 1999); Melting Point: 498 °C; Density: 4.710 @ 20 °C/4 °C.

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.