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| CAS No.: | 513-78-0 |
|---|---|
| Name: | Cadmium carbonate |
| Molecular Structure: | |
|
|
|
| Formula: | CdCO3 |
| Molecular Weight: | 172.41 |
| Synonyms: | Cadmiumcarbonate (6CI,7CI);Cadmium monocarbonate;Carbonicacid, cadmium salt;Kalcit;Mikrokalcit;Supermikrokalcit; |
| EINECS: | 208-168-9 |
| Density: | 4.258 g/mL at 25 °C(lit.) |
| Melting Point: | 357 °C |
| Boiling Point: | 333.6 °C at 760 mmHg |
| Flash Point: | 169.8 °C |
| Appearance: | Milky white powder |
| Hazard Symbols: |
 Xn, N
|
| Risk Codes: | 20/21/22-50/53-45 |
| Safety: | 60-61-45-53 |
| Transport Information: | UN 3077 9/PG 3 |
| PSA: | 63.19000 |
| LogP: | -2.44950 |
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Chemistry
Molecular Formula: CCdO3
Molar mass: 172.4199 g/mol
EINECS: 208-168-9
Flash Point: 169.8 °C
Boiling Point: 333.6 °C at 760 mmHg
Vapour Pressure: 2.58E-05 mmHg at 25°C
Melting point: 357 °C
Appearance: Milky white powder
Solubility: Not dissolve in water and organic solvents, soluble in acid, potassium cyanide, ammonium
Product categories: Catalysis and Inorganic Chemistry;Cadmium Salts;CadmiumMetal and Ceramic Science;Chemical Synthesis
Structure of Cadmium carbonate (CAS NO.513-78-0):
H-Bond Donor: 0
H-Bond Acceptor: 3
IUPAC Name: Cadmium(2+) carbonate
Canonical SMILES: C(=O)([O-])[O-].[Cd+2]
InChI: InChI=1S/CH2O3.Cd/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChIKey: GKDXQAKPHKQZSC-UHFFFAOYSA-L
Uses
Cadmium carbonate (CAS NO.513-78-0) has been used for intermediates of manufacturing polyester, glass pigment flux, organic catalysts, plastic plasticizer, stabilizer,and, raw material for production of cadmium salt.
Production
First, have the reaction of cadmium with nitrate and nitric acid to get cadmium, and then react with sodium carbonate to get cadmium carbonate , and then get the product by washing, drying and grinding. Its
8HNO3 +3 Cd → 3Cd (NO3) 2 +2 NO +4 H2O
Cd (NO3) 2 + Na2CO3 → CdCO3 +2 NANO3
Toxicity Data With Reference
| 1. | sce-ham:ovr 870 nmol/L | ENMUDM Environmental Mutagenesis. 7 (1985),381. | ||
| 2. | orl-mus LD50:310 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 25 (2)(1981),42. |
Carcinogenicity: Cadmium carbonate (CAS NO.513-78-0)- California: carcinogen, initial date 10/1/87 (Cadmium compounds). NTP: Known carcinogen (Cadmium compounds). IARC: Group 1 carcinogen
Other: The toxicological properties have not been fully investigated. See actual entry in RTECS for complete information.
Consensus Reports
IARC Cancer Review: Group 1 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 , 1993,p. 119.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 , 1993,p. 119.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 , 1993,p. 119.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Reported in EPA TSCA Inventory.
Safety Profile
Confirmed human carcinogen. Poison by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of cadmium.
Hazard Codes: Xn.gif){kind=small}
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Risk Statements:
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
45: May cause cancer
50: Very Toxic to aquatic organisms
53: May cause long-term adverse effects in the aquatic environment
Safety Statements:
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
53: Avoid exposure - obtain special instruction before use
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
Standards and Recommendations
OSHA PEL: TWA 5 µg(Cd)/m3
ACGIH TLV: TWA 0.01 mg(Cd)/m3; Suspected Carcinogen
NIOSH REL: (Cadmium, dust and fume) lowest feasible concentration
Specification
Cadmium carbonate (CAS NO.513-78-0) also can be called Otavite ; Supermikrokalcit ; Carbonic acid, cadmium (2+) salt (1:1) .And it is a rare cadmium carbonate mineral. Otavite crystallizes in the trigonal system and forms encrustations and small scalenohedral crystals that have a pearly to adamantine luster. Its specific gravity is 5.04 and the Mohs hardness is 3.5 to 4. Associated minerals include calcite, azurite, smithsonite, and malachite.It was first described in 1906 from the Tsumeb district near Otavi, Namibia.
Cadmium carbonate (CAS NO.513-78-0) is hazardous,so the first aid measures and others should be known.Such as: When on the skin: first,should flush skin with plenty of water immediatelyfor at least 15 minutes while removing contaminated clothing. Secondly,Get shoesmedical aid . Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.Then get medical aid soon.While ,it's Inhaled: Remove from exposure and move to fresh air immediately.Give artificial respiration while not breathing. When breathing is difficult, give oxygen.And as soon as to get medical aid.Then you have the ingesting of the product : Wash mouth out with water,and get medical aid immediately.
In addition, Cadmium carbonate (CAS NO.513-78-0) is light sensitive with air,and can be stable under normal temperature and pressure conditions.It is not compatible with incompatible materials,and you must not take it with incompatible materials.And also prevent it to broken down into hazardous decomposition products: toxic cadmium oxide fumes.