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CADMIUM CARBONATE

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CADMIUM CARBONATE Basic information

Product Name:
CADMIUM CARBONATE
CAS:
513-78-0
MF:
CCdO3
MW:
172.42
EINECS:
208-168-9
Mol File:
513-78-0.mol
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CADMIUM CARBONATE Chemical Properties

Melting point:
357 °C
Density 
4.258 g/mL at 25 °C(lit.)
solubility 
H2O: insoluble(lit.)
form 
powder
Specific Gravity
4.258
color 
White to off-white
Odor
Odorless
Water Solubility 
Very slightly soluble in water. Soluble in dilute acids, concentrated solutions of ammonium salts.
Merck 
14,1616
Solubility Product Constant (Ksp)
pKsp: 12
Stability:
Stable. Incompatible with strong acids.
CAS DataBase Reference
513-78-0(CAS DataBase Reference)
EPA Substance Registry System
Cadmium carbonate (513-78-0)
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Safety Information

Hazard Codes 
Xn,N
Risk Statements 
20/21/22-50/53-45
Safety Statements 
60-61-45-53
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
FF9320000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
28369917
Hazardous Substances Data
513-78-0(Hazardous Substances Data)

MSDS

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CADMIUM CARBONATE Usage And Synthesis

Preparation

Cadmium carbonate is precipitated by adding excess ammonium carbonate to a solution of cadmium chloride:
CdCl2 + (NH4)2CO3 → CdCO3 + 2NH4Cl
The precipitate is filtered and dried at 100°C. If an alkali metal carbonate is used instead of ammonium carbonate, a hydrated basic carbonate is obtained which upon heating with ammonium chloride at 150°C in the absence of air produces anhydrous carbonate.
Cadmium carbonate also may be obtained by slow absorption of cadmium oxide with carbon dioxide.

Chemical Properties

White powdery solid; density 4.258 g/cm3; decomposes on heating below 500°C; insoluble in water and liquid ammonia; soluble in acid (with reaction).

Physical properties

White powdery solid; density 4.258 g/cm3; decomposes on heating below 500°C; insoluble in water and liquid ammonia; soluble in acid (with reaction).

Uses

Cadmium carbonate occurs in nature as the mineral otavite. The commer_x0002_cial applications of this compound are limited. It is used as a catalyst in organic synthesis and as a starting material to prepare other cadmium salts.

Safety Profile

Confirmed human carcinogen. Poison by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of cadmium.

CADMIUM CARBONATE Preparation Products And Raw materials

Raw materials

Preparation Products

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