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CAS NO:513-79-1
EC NO:208-169-4
Cobalt carbonate is the inorganic compound with the formula CoCO3. This reddish paramagnetic solid is an intermediate in the hydrometallurgical purification of cobalt from its ores.
Cobalt carbonate is an inorganic pigment, and a precursor to catalysts.
Cobalt carbonate also occurs as the rare red/pink mineral spherocobaltite.
Preparation and structure
Cobalt carbonate is prepared by combining solutions cobaltous sulfate and sodium bicarbonate:
CoSO4 + 2 NaHCO3 → CoCO3 + Na2SO4 + H2O + CO2
CoCO3 adopts a structure like calcite, consisting of cobalt in an octahedral coordination geometry.
Properties
Chemical formula CoCO3
Molar mass 118.941 g/mol
Appearance red/ pink crystals (anhydrous)
pink, violet, red crystalline powder (hexahydrate)
Density 4.13 g/cm3
Melting point 427 °C (801 °F; 700 K)
decomposes before melting to cobalt(II) oxide (anhydrous)
140 °C (284 °F; 413 K)
decomposes (hexahydrate)
Solubility in water Cobalt (II) Carbonate is insoluble in distilled water.
Solubility product (Ksp) 1.0·10−10
Solubility soluble in acid
negligible in alcohol, methyl acetate
insoluble in ethanol
Refractive index (nD) 1.855
Reactions
Heating the carbonate, proceeds in a typical way for calcining, except that the material is partially oxidized:
6 CoCO3 + O2 → 2 Co3O4 + 6 CO2
The resulting Co3O4 converts reversibly to CoO at high temperatures.Like most transition metal carbonates, cobalt carbonate is insoluble in water, but is readily attacked by mineral acids:
CoCO3 + 2 HCl + 5 H2O → [Co(H2O)6]Cl2 + CO2
Cobalt carbonate is used to prepare many coordination complexes. The reaction of cobalt carbonate and acetylacetone in the presence of hydrogen peroxide gives tris(acetylacetonato)cobalt.These complexes are chiral and often can be resolved into the individual enantiomers.
Uses
Cobalt carbonate is a precursor to cobalt carbonyl and various cobalt salts.
Cobalt carbonate is a component of dietary supplements since cobalt is an essential element.
Cobalt carbonate is a precursor to blue pottery glazes, famously in the case of Delftware.
Industry Uses
Agricultural chemicals (non-pesticidal)
Animal Feed
Catalysts
Dyes
Intermediates
Ion exchange agents
Laboratory chemicals
Metal base production
catalyst
Consumer Uses
Agricultural products (non-pesticidal)
Fuels and related products
Metal products not covered elsewhere
Industry Processing Sectors
Agriculture, forestry, fishing and hunting
All other basic inorganic chemical manufacturing
Miscellaneous manufacturing
Nonmetallic mineral product manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other nonmetallic mineral product manufacturing.
Pesticide, fertilizer, and other agricultural chemical manufacturing
Petrochemical manufacturing
Petroleum refineries
Synthetic dye and pigment manufacturing
Transportation equipment manufacturing
Cobalt Carbonate is an inorganic compound used in ceramics as a blue colorant.
Its chemical formula is CoCO3, and it is available in powdered form. Though it is lavender in color in its dry form, cobalt carbonate produces vibrant shades of blue under the proper conditions. In terms of colorant strength, cobalt carbonate is a weaker form of cobalt oxide (Co3O4), though both are good sources of cobalt.
The potential uses of cobalt in ceramics are many.
Cobalt carbonate can be used alone - applied to the surface of an unfired pot and then fired to the temperature of the clay body. Mixed with other colorants, such as magnesium, and added to a glaze, cobalt can produce more purple/reddish blues in oxidation/reduction firings. With this colorant, you can produce blue slips, if mixed with white clay bodies. In this way you can achieve various shades of blue of different intensities. Additionally, if mixed in the proper proportions with iron and manganese, intense blacks can be achieved. In general, cobalt is a relatively stable colorant in all kiln atmospheres.
Cobalt Carbonate is a water insoluble Cobalt source that can easily be converted to other Cobalt compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids.
Cobalt Carbonate is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Cobalt carbonate is the inorganic compound with the formula CoCO3.
Cobalt carbonate is a precursor to cobalt carbonyl, cobalt salts and blue pottery glazes such as delftware.
Cobalt carbonate is used as an essential element in dietary supplements and is also used in the manufacture of paints and pigments.
A pinkish tan powder.
Cobalt carbonate is a strong colorant and almost always produces blue in glazes (unless in very high percentages where it is black).
Cobalt carbonate is an extremely active melter (even more than cobalt oxide), in a mix of 50% Ferro frit 3134 it will boil at cone 6. The carbonate form of cobalt is very fine grained and disperses better in the glaze slurry and the glaze melt, it gives a more evenly distributed color than cobalt oxide. However, as with any carbonate, it produces gases as it decomposes and these can cause pinholes or blisters in glazes if they need to escape at the time when the glaze needs to solidify. The carbonate form contains less CoO (63% CoO vs. commercial cobalt oxide which is not actually 100% CoO but around 93%).
The most powerful colouring oxide. This oxide produces a deep blue or blue-black colour in lead and leadless glazes and a vivid blue in alkaline glazes.
The presence of magnesium gives a more purple colour.
Cobalt Carbonate CoCO3
1 - 3% to obtain a blue glaze
Cobalt carbonate is a fine grained material that gives more even distribution of colour than cobalt oxide. Produces an evenly textured blue glaze (1-3%) which is less intense than the oxide. Cobalt almost always produces blues, which may vary somewhat with glaze composition, high zinc glazes tending to give greenish blues (especially if titanium is present) and high magnesium glazes tending to produce lilac or pink hues. Cobalt is quite soluble in glazes, consequently it has little or no opacifying effect in the amounts normally used (rarely more than 1-2%). Cobalt is an active flux and it may be necessary to take this into account when using it in some glazes, as it may increase their fusibility quite considerably. Like other raw oxides (or carbonates) of copper, manganese and nickel, cobalt may cause blisters or bubbles in some glazes due to changing oxidation state during the firing cycle.
A pinkish tan powder and colour can very from pink to tan.
Cobalt carbonate is a strong colorant and almost always produces blue in glazes (unless in very high percentages where it is black).
Cobalt carbonate is an extremely active melter (even more than cobalt oxide), in a mix of 50% Ferro frit 3134 it will boil at cone 6.
Cobalt carbonate form of cobalt is very fine grained and disperses better in the glaze slurry and the glaze melt, it gives a more evenly distributed colour than cobalt oxide. However, as with any carbonate, it produces gases as it decomposes and these can cause pinholes or blisters in glazes if they need to escape at the time when the glaze needs to solidify.
Cobalt carbonate form contains less CoO (63% CoO vs. commercial cobalt oxide which is not actually 100% CoO but around 93%).
The theoretical oxide form has 93% CoO while this has 63%. So if you want to switch from the oxide to the carbonate in a recipe, multiply by 93 and divide by 63. To switch from carbonate to oxide multiply by 63 and divide by 93. But remember that this will be approximate (for reasons discussed above and on the cobalt oxide page), you will likely need to fine tune the amount based on fired results. In addition, the quality of the colour may be different.
Cobalt carbonate using a stain as a better solution.
Cobalt carbonate is produced from a liquid reaction between cobalt II acetate and sodium carbonate to produce red violet crystals that are recovered by filtration.
Cobalt carbonate is insoluble in cold water but will decompose in hot water.
Specifications
Appearance (Colour) Pinkish
Appearance (Form) Powder
Assay min. 92%
Cobalt content (Co) 45 to 50%
Cobalt Carbonate – CoCO3 (m.p. 1661o F/905o C) is used as a colorant to produce blues in glazes and can present purples when manganese is present.
Cobalt Carbonate is sometimes preferred over the Oxide form due to its particle size. Cobalt Oxide can substitute for the Carbonate form if used in one-half the given amount.
Cobalt Carbonate – (CuC03) a fine lavender color glaze/and or clay body colorant producing various intensities of blue.
A lavender powder used to introduce cobalt into the ceramic compounds giving good shades of blue. When manganese is added a purple can be expressed. Dust is toxic
A fine, particled, lavender powder used as a colorant in glazes and slips.
Cobalt Carbonate is the most stable and reliable colorant. Produces various shades of blue when used alone, and will produce the same shades of blue when used in almost every type of glaze and under various firing conditions. Often used for overglaze brushed decoration.
About this substance
Helpful information
Cobalt Carbonate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 tonnes per annum.
Cobalt Carbonate is used in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.
Article service life
Release to the environment of Cobalt Carbonate can occur from industrial use: industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal).
Other release to the environment of Cobalt Carbonate is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).
Cobalt Carbonate can be found in complex articles, with no release intended: machinery, mechanical appliances and electrical/electronic products (e.g. computers, cameras, lamps, refrigerators, washing machines).
Cobalt Carbonate can be found in products with material based on: metal (e.g. cutlery, pots, toys, jewellery) and stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material).
Widespread uses by professional workers
Cobalt Carbonate is used in the following products: fertilisers.
Cobalt Carbonate is used in the following areas: agriculture, forestry and fishing.
Other release to the environment of Cobalt Carbonate is likely to occur from: outdoor use as reactive substance and indoor use as reactive substance.
Formulation or re-packing
Cobalt Carbonate is used in the following products: metal surface treatment products, pH regulators and water treatment products, laboratory chemicals, water treatment chemicals and fertilisers.
Release to the environment of Cobalt Carbonate can occur from industrial use: formulation of mixtures.
Uses at industrial sites
Cobalt Carbonate is used in the following products: metal surface treatment products, laboratory chemicals, pH regulators and water treatment products, pharmaceuticals and water treatment chemicals.
Cobalt Carbonate has an industrial use resulting in manufacture of another substance (use of intermediates).
Cobalt Carbonate is used in the following areas: scientific research and development.
Cobalt Carbonate is used for the manufacture of: chemicals and fabricated metal products.
Release to the environment of Cobalt Carbonate can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates), in the production of articles, in processing aids at industrial sites and as processing aid.
Manufacture
Release to the environment of Cobalt Carbonate can occur from industrial use: manufacturing of the substance and as an intermediate step in further manufacturing of another substance (use of intermediates).
The carbonate form of cobalt is very fine grained and disperses better and gives more evenly distributed color than cobalt oxide, most widely used in blue glazes. As with any carbonate, it produces gases as it decomposes which can cause pinholes or glaze blisters. Also the carbonate form contains less cobalt per gram, therefore colors are less intense than the oxide.
Uses
Cobalt carbonate is the carbonate salt of cobalt prepared by heating cobaltous sulfate with a solution of sodium bicarbonate. This reddish paramagnetic solid is an intermediate in the hydrometallurgical purification of cobalt from its ores.
Cobalt carbonate is an inorganic pigment, and a precursor to catalysts.
Cobalt carbonate is used as a microelement in the zootechnical Industry, as raw material in the production of pigments and as catalysts.
Appearance
Cobalt carbonate is an inorganic compound that appears as un odourless purple powder.
Solubility
Cobalt carbonate is insoluble in water and ammonia; but however soluble in acids.
Cobalt carbonate, also known as spherocobaltite, is a mineral with chemical formula CoCO3.
Cobalt carbonate is the carbonate salt of cobalt.
List of uses
Catalysts production
Chemicals (Intermediate) – feed material for other substances
Fermentation process/biogas production
Fertilizers and feed grade materials
Manufacture of pigments, frits, glass and ceramic ware
Oxygen Scavengers
Surface treatments
CoCO3 — Used as a slip and glaze colorant, cobalt carbonate produces various shades of blue or purples where manganese is present. Because of its extremely fine particle size, it is more easily dispersed in glazes than cobalt oxide.
Cobalt Carbonate is used as a slip and glaze colorant, producing various shades of blue or purples where manganese is present.
Cobalt Carbonate is more easily dispersed in glazes than cobalt oxide due to its extremely fine particle size.
Cobalt carbonate is an odorless, pink to red, crystalline powder with trigonal crystals. Some of the technical qualities also contain cobalt (II) hydroxide as an admixture.
In nature it occurs as moderately rare sphero-cobaltite, or in similar form as cobaltocalcite.
Our customers can be found among others in the catalyst and pigment industry, but also in the feed industry, where cobalt is an additive to support the formation of vitamin B12.
Cobalt carbonate is carcinogenic and mutagenic and is also suspected of being teratogenic.
Cobalt Carbonate Basic, Powder, also known as cobaltous carbonate, is a precursor to catalysts. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.
Cobalt Carbonate is a strong colorant and almost always produces blue in glazes (unless in very high percentages where it is black).
Cobalt carbonate is an extremely active melter (even more than cobalt oxide), in a mix of 50% Ferro frit 3134 it will boil at cone 6. The carbonate form of cobalt is very fine grained and disperses better in the glaze slurry and the glaze melt. This gives cobalt carbonate a more evenly distributed color than cobalt oxide. However, as with any carbonate, it produces gases as it decomposes and these can cause pinholes or blisters in glazes if they need to escape at the time when the glaze needs to solidify. Also the carbonate form contains less cobalt per gram, therefore colors are less intense than the oxide form (63% CoO vs. cobalt oxide which is 100% CoO).
Molecular formula： CoCO3
The molecular weight： 118.94
The shape of：Blue or pink powder, soluble in dilute acid or ammonia, insoluble in cold water, decomposition in hot water.
Use：Cobalt salt, cobalt dye, feed and porcelain color chemical reagent, etc
This reddish paramagnetic solid is extracted from cobalt ore, and is used primarily in the coloration and glazing of ceramics, but is also an essential mineral compound found in dietary nutritional supplements.
Cobalt carbonate acts as an anti-caking agent, and it also aids the human body in the metabolizing of other essential minerals such as phosphorous.
Cobalt carbonate is also essential to the body’s production of cobalamin, or Vitamin B12, when consumed and processed by microbiota in the digestive tract. Vitamin B12 helps convert carbohydrates, protein,and lipids in food into energy for the body, thus helping the body metabolize food more efficiently and provide greater benefits from proper nutrition. Vitamin B12 is also essential to red blood cell production and the proper function and health of nerve tissue and brain function.
Cobalt carbonate helps the body produce Vitamin B12 naturally within the GI tract, and thus is considered an essential nutrient.
Pink powder, soluble in dilute acid, and insoluble in cold water.Used to produce cobalt oxides, cobalt salts, and chemical reagents; also used as a tinting pigment in the glass and ceramic industries
Properties: Pink powder, soluble in dilute acid, and insoluble in cold water
Uses: Used to produce cobalt oxides, cobalt salts, and chemical reagents; also used as a tinting pigment in the glass and ceramic industries
Cobalt carbonate is a fine grained material that gives more even distribution of colour than cobalt oxide. Produces an evenly textured blue glaze (1-3%) which is less intense than the oxide.
Cobalt carbonate almost always produces blues, which may vary somewhat with glaze composition, high zinc glazes tending to give greenish blues (especially if titanium is present) and high magnesium glazes tending to produce lilac or pink hues.
Cobalt carbonate is quite soluble in glazes, consequently it has little or no opacifying effect in the amounts normally used (rarely more than 1-2%).
Cobalt carbonate is an active flux and it may be necessary to take this into account when using it in some glazes, as it may increase their fusibility quite considerably. Like other raw oxides (or carbonates) of copper, manganese and nickel, cobalt may cause blisters or bubbles in some glazes due to changing oxidation state during the firing cycle.
Physical Properties
Pink rhombohedral crystals; refractive index 1.855; density 4.13 g/cm3; decomposes on heating; insoluble in water and ethanol; soluble in acids.
Uses
The compound occurs in nature as the mineral cobalt spar or sphaerocobaltite.
Cobalt carbonate is used in ceramics; in cobalt pigments; as a catalyst; as a temperature indicator; and in the preparation of other cobalt(II) salts.
Cobalt carbonate also is added to soil to provide nutritional supplement in forage for cattle.
Preparation
Cobalt carbonate is prepared by heating cobaltous sulfate, cobaltous chloride or any Co2+ salt with sodium bicarbonate in solution:
CoSO4 + NaHCO3→ CoCO3 + NaHSO4
Reactions
Cobalt carbonate dissolves in concentrated HCl or HNO3 when heated, evolving CO2:
CoCO3 + HCl→CoCl2 + CO2 + H2O
Cobalt carbonate is oxidized by air or weak oxidizing agents, forming cobalt(III) carbonate, Co2(CO3)3.
Cobalt carbonate decomposes on heating, forming the oxides of cobalt with the evolution of CO2.
Chemical Properties
Cobalt carbonate is Violet Powder
Preparation
Cobalt carbonate is prepared by heating cobaltous sulfate, cobaltous chloride or any Co2+ salt with sodium bicarbonate in solution:
CoSO4 + NaHCO3 → CoCO3 + NaHSO4
IUPAC names
Cobalt (II) carbonate
cobalt (II) carbonate
Cobalt Carbonate
Cobalt carbonate
cobalt carbonate
Cobalt Carbonate
Cobalt carbonate
cobalt carbonate
cobalt(2+) carbonate
Cobalt(II)carbonat
cobalte carbonate
lambda2-cobalt(2+) carbonate
SYNONYMS:
COBALT(II) CARBONATE, BASIC
COBALT (II) CARBONATE
COBALT CARBONATE
COBALTOUS CARBONATE
cobaltcarbonate(1:1)
cobaltcarbonate(coco3)
cobaltmonocarbonate
cobaltspar
sphaerocobaltite
Cobaltcarbonatetechgr
Cobalt(Ⅱ) carbonate
Cobaltcarbonatepowder
Kobalt(II)-carbonatHydrat
Cobalt(II)carbonatehydrate(99%-Co)(Comin.45.5%)
COBALTCARBONATE,POWDER,REAGENT
COBALT(II) CARBONATE HYDRATE: (99% CO) (CO 45.5%)
c.i.77353
Carbonicacid,cobalt(2+)salt(1:1)
carbonicacid,cobalt(2++)salt(1:1)
ci77353
cobalt(2+)carbonate
cobalt(2+)carbonate(coco3)
Cobalt(II)carbonate,99%(metalsbasis),Co45%min
Cobalt(II) Carbonate 99.99+%
Cobalt(II) carbonate, 99.5% (metals basis)
Carbonic acid cobalt(II)
Carbonic acid cobalt(II) salt
COBALT CARBONATE, 99.5%
Carbonic acid, cobalt(2+) salt
Nsc112219
Cobalt(II) Carbonate 99.9%
Coblltous carbonate
Cobalt(II) carbonate, 99.5% trace metals basis
Cobalt(II) carbonate, 99% trace metals basis
Cobalt (II) carbonate≥99%
COBALT CARBONATE, 99.5%COBALT CARBONATE, 99.5%COBALT CARBONATE, 99.5%COBALT CARBONATE, 99.5%
t Carbonate
Cobalt(II) carbonate anhydrous
