Copper(I) chloride

Description

Cuprous Chloride · CAS 7758-89-6 · ClCu. UNII C955P95064. Boiling Point: 1490 °C @760 [mm Hg]; Melting Point: 423 °C; Density: 4.14 @25 °C.

Identification

CAS Registry Number	7758-89-6
PubChem CID	62652
Molecular formula	ClCu
IUPAC name	chlorocopper
UNII (FDA)	C955P95064

Computed Descriptors

Molecular Weight	99.00
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	97.898450
Monoisotopic Mass	97.898450
Topological Polar Surface Area	0
Heavy Atom Count	2
Formal Charge	0
Complexity	2

Physical & Chemical Properties

Boiling Point	1490 °C @760 [mm Hg]
Melting Point	423 °C
Density	4.14 @25 °C
Vapor Pressure	1 [mm Hg] @546 °C

Physical description & handling notes

• Dry Powder; Liquid
• White solid; Turns green on exposure to moist air, and blue to brown on exposure to light; [Merck Index] Insoluble in water (0.1 g/L); [Ullmann] Grey-tan to light green odorless powder; [Reference #2]

GHS Hazard Classification

Reported hazard statements	H302, H400, H410, H317, H373, H301, H331

Documented Uses

• Petroleum Production and Refining [Category: Industry]
• Copper(I) chloride is as a precursor to the fungicide copper oxychloride. It is also used in organic and polymer chemistry. (L292)
• 2023: 2,500,000 - <4,000,000 lb
• 2022: 2,500,000 - <4,000,000 lb
• 2021: 2,500,000 - <4,000,000 lb
• 2020: 2,500,000 - <4,000,000 lb

Synonyms

Cuprous chloride; COPPER(I) CHLORIDE; 7758-89-6; Copper monochloride; Dicopper dichloride; Copper(1+) chloride; Copper chloride (CuCl); Chlorid medny; CuCl; Cuproid; Cu-lyt; C955P95064; CHEBI:53472; RefChem:128845; DTXCID3015242; 231-842-9

Frequently Asked Questions

What are the CAS number and molecular formula of Cuprous Chloride?

CAS 7758-89-6; molecular formula ClCu; molecular weight — g/mol.

What other names is Cuprous Chloride known by?

Cuprous chloride, COPPER(I) CHLORIDE, 7758-89-6, Copper monochloride, Dicopper dichloride, Copper(1+) chloride.

Is Cuprous Chloride classified as hazardous?

Hazard statements reported: H302, H400, H410, H317, H373.

What are the key physical properties of Cuprous Chloride?

Boiling Point: 1490 °C @760 [mm Hg]; Melting Point: 423 °C; Density: 4.14 @25 °C; Vapor Pressure: 1 [mm Hg] @546 °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.