Cobalt (II) carbonate

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Structural formula
CobaltionCarbonation
General
Surname Cobalt (II) carbonate
other names
  • Cobalt (II) carbonate
  • Cobalt carbonate
Molecular formula CoCO 3
Brief description

odorless, pink powder

External identifiers / databases
CAS number
  • 513-79-1
  • 57454-67-8 (as hydrate)
PubChem 10565
Wikidata Q419804
properties
Molar mass 118.94 g mol −1
Physical state

firmly

density

4.13 g cm −3

solubility

practically insoluble in water (1.1 g l −1 at 15 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning 08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 302-317-334-341-350i-360F-410
P: 201-260-273-280-302 + 352
Authorization procedure under REACH

particularly worrying : carcinogenic, toxic for reproduction ( CMR )

Toxicological data

640 mg kg −1 ( LD 50 ,  rat ,  oral )

Thermodynamic properties
ΔH f 0

−713.0 kJ / mol

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cobalt (II) carbonate is an inorganic chemical compound from the group of carbonates (the carbonate salt of cobalt ). It is an odorless, pink to red, crystalline powder with trigonal crystals . Technical cobalt (II) carbonate also partly contains cobalt (II) hydroxide as an admixture.

Occurrence

Cobalt (II) carbonate occurs naturally as the mineral spherocobaltite .

Extraction and presentation

Precipitation of basic cobalt (II) carbonate from cobalt (II) chloride solution with sodium carbonate

Cobalt (II) carbonate can be obtained by reacting cobalt (II) acetate or cobalt (II) chloride solution and sodium carbonate . This usually results in basic cobalt (II) carbonates.

use

Cobalt (II) carbonate is used as a catalyst and pigment and is contained in ceramic glazes as a dye (blue).

The main use, however, is as a feed additive for ruminants who need cobalt to produce vitamin B12 .

safety instructions

Cobalt (II) carbonate is classified as carcinogenic. The main route of absorption into the body is the respiratory tract, but it can also be absorbed through the skin and the digestive tract.

Individual evidence

  1. ↑ a b c d e f g h Entry on cobalt (II) carbonate in the GESTIS substance database of the IFA , accessed on November 22, 2017(JavaScript required) .
  2. ↑ Entry on cobalt carbonate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  3. ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on July 17, 2014.
  4. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-19.
  5. ^ Heinrich Remy : Textbook of Inorganic Chemistry Volume II, Akademische Verlagsgesellschaft Geest & Portig Leipzig 1961, p. 357.
  6. ↑ EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP): Scientific Opinion on safety and efficacy of cobalt carbonate as feed additive for ruminants, horses and rabbits . In: EFSA Journal . tape 10 , no. 6 , 2012, doi : 10.2903 / j.efsa.2012.2727 .
  7. ↑ https://www.deutsche-tiernahrung.de/open/brand_id/3/action/glossary%3Blist/menu/8/letter/K/M/MUrtCA