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ChemicalBook >> CAS DataBase List >>Cuprous bromide

Cuprous bromide

CAS No.
7787-70-4
Chemical Name:
Cuprous bromide
Synonyms
COPPER BROMIDE;COPPER(I) BROMIDE;cooper bromide;Kupferbromid;Bromocopper(I);CUPROUS BROMIDE;Cupper(Ⅰ)bromide;COPPER(+1)BROMIDE;Copper(l) bromide;coppermonobromide
CBNumber:
CB7311066
Molecular Formula:
BrCu
Molecular Weight:
143.45
MDL Number:
MFCD00010969
MOL File:
7787-70-4.mol
MSDS File:
SDS
Last updated:2024-12-18 14:08:57

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
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility insoluble in acetone
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
Exposure limits ACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
Stability Stable, but may be air or light sensitive. Incompatible with alkali metals, strong oxidizing agents.
InChIKey NKNDPYCGAZPOFS-UHFFFAOYSA-M
CAS DataBase Reference 7787-70-4(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances CUPROUS BROMIDE
FDA UNII R8V209A5G0
NIST Chemistry Reference Copper(I) bromide(7787-70-4)
EPA Substance Registry System Copper bromide (CuBr) (7787-70-4)

Cuprous bromide Properties

Hardness, Mohs 2.5

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07,GHS09
Signal word  Danger
Hazard statements  H302+H312-H315-H318-H410
Precautionary statements  P264-P273-P280-P301+P312-P302+P352+P312-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38-22
Safety Statements  22-24/25-26-37/39
RIDADR  3260
WGK Germany  3
F  8-10-23
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  28275900
Hazardous Substances Data 7787-70-4(Hazardous Substances Data)
NFPA 704
0
2 0

Cuprous bromide price More Price(53)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 923060 Copper(I) bromide 99.9% trace metals basis 7787-70-4 25G $81.6 2024-03-01 Buy
Sigma-Aldrich 923060 Copper(I) bromide 99.9% trace metals basis 7787-70-4 100G $265 2024-03-01 Buy
Sigma-Aldrich 923052 Copper(I) bromide 99.99% trace metals basis 7787-70-4 25G $111 2024-03-01 Buy
Sigma-Aldrich 923052 Copper(I) bromide 99.99% trace metals basis 7787-70-4 100G $303 2024-03-01 Buy
Sigma-Aldrich 212865 Copper(I) bromide 98% 7787-70-4 50g $59.9 2024-03-01 Buy
Product number Packaging Price Buy
923060 25G $81.6 Buy
923060 100G $265 Buy
923052 25G $111 Buy
923052 100G $303 Buy
212865 50g $59.9 Buy

Cuprous bromide Chemical Properties,Uses,Production

Chemical Properties

Copper(I) bromide is a Pale green to green poeder that decomposes on exposure to light or moisture in air. It forms complexes with hydrochloric and hydrobromic acids and aqueous ammonia.
Cuprous bromide

Uses

As catalyst for organic reactions.

Uses

It is used as effective catalyst for tetrahydropyranylation of alcohols. It can also be used in combination with palladium in catalytic synthesis of 3-haloindoles through annulation process. It is widely used in the synthesis of organic fine chemicals. The compound is widely used in the synthesis of organic compounds. It is also useful for copper-mediated coupling reactions. A silica gel support copper bromide hexa methyltriethylenetetramine complex has shown useful application for the atom transfer radical polymerization of methyl methacrylate in toluene.

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.]

7758-99-8
7647-15-6
7787-70-4
Synthesis of Cuprous bromide from Copper(II) sulfate pentahydrate and Sodium bromide
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View Lastest Price from Cuprous bromide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Cuprous bromide pictures 2024-11-20 Cuprous bromide
7787-70-4
 US $10.00 / KG 1KG 99% 10 mt Hebei Weibang Biotechnology Co., Ltd
Cuprous bromide pictures 2024-10-25 Cuprous bromide
7787-70-4
 US $0.00 / kg 1kg 0.99 20tons Hebei Yanxi Chemical Co., Ltd.
Cuprous bromide pictures 2024-10-11 Cuprous bromide
7787-70-4
 US $9.00 / KG 1KG 99.8% 100tons Hebei Chuanghai Biotechnology Co,.LTD
  • Cuprous bromide pictures
  • Cuprous bromide
    7787-70-4
  • US $10.00 / KG
  • 99%
  • Hebei Weibang Biotechnology Co., Ltd
  • Cuprous bromide pictures
  • Cuprous bromide
    7787-70-4
  • US $9.00 / KG
  • 99.8%
  • Hebei Chuanghai Biotechnology Co,.LTD

Cuprous bromide Spectrum

COPPER(+1)BROMIDE Copper(I) broMide 99.999% trace Metals basis Copper(I) broMide, 98.5% Copper(i) bromide, 98%, extra pure Copper(I) bromide, min. 98% Bromocopper(I) Copper(I) bromide, Puratronic, 99.998% (metals basis) Cuprous bromide,98% COPPER(I)BROMIDE(RG) Copper(I) broMide, extra pure, 98% 250GR Copper(I)bromide,min.98% copper(i) bromide, puratronic CuBr Copper(I)bromide COPPER(I) BROMIDE, 99.999% Copper(I) bromide, Puratronic(R), 99.998% (metals basis) Copper(I) bromide beads, -10 mesh, 99.99% trace metals basis Copper(I) bromide purum p.a., >=98.0% (RT) Copper(l) bromide Copper(I) bromide, ampuled under argon, 99.995% trace metals basis CUPROUS BROMIDE copperbromide(cubr) coppermonobromide Copperbromideoffwhitepowder Cupper(Ⅰ) bromide Copper(I) bromide, 99.999% metals basis Copper(I)Bromide,>98% CuprousBromide(Anhydrous) Copper(I)bromide,95%min. Copper(I)bromide,97% Copper(I) bromide, extra pure, 98% CUPROUS BROMIDE 99.999% Copper(Ⅰ) bromide Copper(I) bromide, 99%, for synthesis Copper(I) Bromide, 99.9% Copper(I) bromide (99.99%-Cu) PURATREM Cuprous bromide ISO 9001：2015 REACH Kupferbromid Cupper(Ⅰ)bromide Cuprous Bromide pure, 98.5% CUPROUS BROMIDE ANHYDROUS Extra Pure COPPER BROMIDE COPPER(I) BROMIDE cooper bromide Copper bromide (CuBr) (8CI, 9CI, ACI) Copper (I) Bromide Anhydrous 97% Extrapure Copper(I) bromide, 99.998% (metals basis),powder CUPROUS BROMIDE ANHYDROUS 97% 7787-70-4 787-70-4 CuBr Click Catalyst and Ligands Click Chemistry Specialty Synthesis Chemical Ligation Catalysis and Inorganic Chemistry 29: Cu Beaded Materials Ceramic Science