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Cadmium bromide

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Cadmium bromide Basic information

Product Name:
Cadmium bromide
Synonyms:
  • Cadmium bromide (CdBr2)
  • Cadmium dibromide
  • cadmiumbromide(cdbr2)
  • cadmium(2+),dibromide
  • Cadmium(II) bromide, anhydrous 98%
  • CADMIUM BROMIDE
  • cadmiumbromidedimer
  • CdBr2
CAS:
7789-42-6
MF:
Br2Cd
MW:
272.22
EINECS:
232-165-1
Product Categories:
  • Cadmium Salts
  • CadmiumMetal and Ceramic Science
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Crystal Grade Inorganics
  • Salts
  • Inorganics
  • metal halide
Mol File:
7789-42-6.mol
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Cadmium bromide Chemical Properties

Melting point:
567°C
Boiling point:
863°C
Density 
5,192 g/cm3
Flash point:
863°C
solubility 
Soluble in alcohol, ether, acetone and liquid ammonia.
form 
beads
color 
White to pale yellow
Specific Gravity
5.192
Water Solubility 
Freely soluble in water, alcohol. Slightly soluble in acetone and ether.
Sensitive 
Hygroscopic
Merck 
14,1615
Stability:
Stable.
CAS DataBase Reference
7789-42-6(CAS DataBase Reference)
EPA Substance Registry System
Cadmium bromide (7789-42-6)
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Safety Information

Hazard Codes 
Xn,N
Risk Statements 
20/21/22-50/53
Safety Statements 
60-61
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
EU9935000
3-10
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
Hazardous Substances Data
7789-42-6(Hazardous Substances Data)

MSDS

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Cadmium bromide Usage And Synthesis

Chemical Properties

White to yellowish crysatlline powder

Chemical Properties

Cadmium bromide is a white to yellowish crystalline powder.

Physical properties

White to yellowish powder or flakes; hexagonal crystal system; hygroscopic; density 5.192g/cm3; melts at 568°C; vaporizes at 844°C; soluble in water, alcohol, ether, acetone, and liquid ammonia.

Uses

Made by heating cadmium to redness in bromine vapor. The yellowish crystalline powder is soluble in water and alcohol and is slightly soluble in ether. The crystals are deliquescent and must be kept in a well-stoppered bottle. Like its iodide counterpart, cadmium bromide was used in collodion in conjunction with an iodide of either ammonium or potassium.

Uses

This compound is used in photography, engraving, and lithography. The other halogen elements also combine with cadmium in a similar ionic reaction as with bromine.

Uses

Process engraving, lithography and photography

Uses

In photography, process engraving, and lithography.

Preparation

Cadmium bromide is prepared by heating cadmium with bromine vapor. Also the compound can be prepared by the treatment of dry cadmium acetate with glacial acetic acid and acetyl bromide. Alternatively, it may be obtained by dissolving cadmium or cadmium oxide in hydrobromic acid and evaporating the solution to dryness under helium in an inert atmosphere.

General Description

Odorless white solid. Mixes with water.

Air & Water Reactions

Water soluble.

Reactivity Profile

CADMIUM 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 causes coughing, sneezing, symptoms of lung damage. Ingestion produces severe toxic symptoms; both kidney and liver injuries may occur. Contact with eyes causes irritation.

Fire Hazard

Special Hazards of Combustion Products: Toxic cadmium oxide fumes may form in fires.

Safety Profile

Confirmed human carcinogen. When heated to decomposition it emits toxic fumes of Cd and Br-.

Potential Exposure

Cadmium bromide is used in photography, engraving, and lithography

Shipping

UN 2570 Cadmium compounds, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Purification Methods

Crystallise it from water (0.6mL/g) between 100o and 0o, and dry it at 110o. It forms the monohydrate below 36o and the tetrahydrate above 36o. [Wagenknecht & Juza in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1096 1965.]

Cadmium bromideSupplier

Shaanxi DIDU pharmaceutical and Chemical Co., Ltd Gold
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029-87576359- ;029-61856358-
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J & K SCIENTIFIC LTD.
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010-82848833- ;010-82848833-
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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Alfa Aesar
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400-610-6006; 021-67582000
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Energy Chemical
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021-58432009-
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sales8178@energy-chemical.com