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Cuprous bromide

Cuprous bromide
Cuprous bromide structure
CAS No.
7787-70-4
Chemical Name:
Cuprous bromide
Synonyms
COPPER BROMIDE;Bromocopper(I);cooper bromide;CUPROUS BROMIDE;COPPER(I) BROMIDE;COPPER(+1)BROMIDE;Copper(l) bromide;coppermonobromide;Cupper(Ⅰ) bromide;Copper(Ⅰ) bromide
CBNumber:
CB7311066
Molecular Formula:
BrCu
Formula Weight:
143.45
MOL File:
7787-70-4.mol

Cuprous bromide Properties

Melting point:
504 °C(lit.)
Boiling point:
1345 °C
Density 
4.71 g/mL at 25 °C(lit.)
Flash point:
1345°C
form 
Powder
Specific Gravity
4.98
color 
Pale green to green
Water Solubility 
Soluble in hydrogen bromide, hydrochloric acid, and ammonium hydroxide. Slightly soluble in water. Insoluble in acetone.
Sensitive 
Air Sensitive
Crystal Structure
Hexagonal, Wurtzite (Zincite) Structure - Space Group P 63mc
Merck 
14,2659
Solubility Product Constant (Ksp)
pKsp: 8.2
Stability:
Stable, but may be air or light sensitive. Incompatible with alkali metals, strong oxidizing agents.
InChIKey
NKNDPYCGAZPOFS-UHFFFAOYSA-M
Indirect Additives used in Food Contact Substances
CUPROUS BROMIDE
CAS DataBase Reference
7787-70-4(CAS DataBase Reference)
FDA UNII
R8V209A5G0
NIST Chemistry Reference
Copper(I) bromide(7787-70-4)
EPA Substance Registry System
Copper bromide (CuBr) (7787-70-4)

Mechanical Properties

Hardness, Mohs
2.5
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS09
Hazard statements  H315-H319-H335-H400-H410
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38-22
Safety Statements  22-24/25-26-37/39
RIDADR  3260
WGK Germany  3
8-10-23
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  28275900

Cuprous bromide price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 61163 Copper(I) bromide purum p.a., ≥98.0% (RT) 10 g $47.7 2021-03-22 Buy
Sigma-Aldrich 212865 Copper(I) bromide 98% 7787-70-4 50g $50.6 2021-03-22 Buy
Sigma-Aldrich 61163 Copper(I) bromide purum p.a., ≥98.0% (RT) 100 g $101 2021-03-22 Buy
Sigma-Aldrich 212865 Copper(I) bromide 98% 7787-70-4 250g $125 2021-03-22 Buy
Alfa Aesar 011605 Copper(I) bromide, 98% 7787-70-4 1kg $146 2020-06-24 Buy

Cuprous bromide Chemical Properties,Uses,Production

Chemical Properties

Copper(I) bromide is a white, cubic, crystalline material that decomposes on exposure to light or moisture in air. It forms complexes with hydrochloric and hydrobromic acids and aqueous ammonia.

Uses

As catalyst for organic reactions.

Uses

Copper bromide is also known as cupric bromide, this substance was made by double decomposition when mixing aqueous solutions of copper sulfate and potassium bromide. This greenish blue solution was used as the bleaching step for intensifying collodion and gelatin negatives.

Preparation

It is prepared pyrometallurgically with copper metal and elemental bromine in a process similar to that for copper(I) chloride. It can also be produced by the reduction of copper(II) sulfate solutions in the presence of sodium bromide using metallic copper or sulfite as the reducing agent. Copper(I) bromide is used as a polymerization catalyst in organic reactions.

General Description

White powder or crystal. Turns green to dark blue on exposure to sunlight. Sinks and mixes slowly with water.

Air & Water Reactions

Mixes slowly with water.

Reactivity Profile

Cuprous bromide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.

Health Hazard

INHALATION: Irritation of upper respiratory tract. EYES: Irritation of conjunctivae. SKIN: Irritation, acne-like rash (usually from prolonged exposure). INGESTION: Vomiting caused by local irritant and astringent action of ionic Cu on stomach and intestines. Pain in mouth, esophagus, and stomach. Inorganic bromides produce depression, psychoses, and mental deterioration.

Purification Methods

Purify it as for cuprous iodide but using aqueous NaBr. [Keller & Wycoff Inorg Synth II 3 1946, Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1006 1965.]

Cuprous bromide Preparation Products And Raw materials

Raw materials

Preparation Products


Cuprous bromide Suppliers

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View Lastest Price from Cuprous bromide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-11 Cuprous bromide
7787-70-4
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-09 Cuprous bromide
7787-70-4
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-06-26 Cuprous bromide
7787-70-4
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Cuprous bromide Spectrum


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