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COBALT(III) OXIDE BLACK

Uses Preparation Reactions
COBALT(III) OXIDE BLACK
COBALT(III) OXIDE BLACK structure
CAS No.
1308-04-9
Chemical Name:
COBALT(III) OXIDE BLACK
Synonyms
c.i.77323;COBALT BLACK;dicobaltoxide;cobaltperoxide;cobalttrioxide;Cobolt-3-oxide;Cobalt(Ⅲ)oxide;COBALTIC OXIDE;Cabalt trioxide;cobalitic oxide
CBNumber:
CB4291419
Molecular Formula:
Co2O3
Formula Weight:
165.86
MOL File:
1308-04-9.mol

COBALT(III) OXIDE BLACK Properties

Melting point:
895 °C (dec.)(lit.)
Density 
6.11 g/mL at 25 °C(lit.)
storage temp. 
Inert atmosphere,Room Temperature
form 
powder
Water Solubility 
insoluble H2O; soluble conc acids [HAW93]
EPA Substance Registry System
Cobalt oxide (Co2O3) (1308-04-9)
SAFETY
  • Risk and Safety Statements
Hazard Codes  Xn
Risk Statements  36/37/38-40-43-22
Safety Statements  26-36/37/39-36/37
WGK Germany  1
RTECS  GG2500000

COBALT(III) OXIDE BLACK price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 637025 Cobalt(II,III) oxide nanopowder, <50?nm particle size (TEM), 99.5% trace metals basis 1308-04-9 25 g $69.3 2021-03-22 Buy
Sigma-Aldrich 221643 Cobalt(II,III) oxide powder, <10?μm 1308-04-9 50 g $77.1 2021-03-22 Buy
Sigma-Aldrich 637025 Cobalt(II,III) oxide nanopowder, <50?nm particle size (TEM), 99.5% trace metals basis 1308-04-9 100 g $208 2021-03-22 Buy
Sigma-Aldrich 221643 Cobalt(II,III) oxide powder, <10?μm 1308-04-9 250 g $260 2021-03-22 Buy
Sigma-Aldrich 637025 Cobalt(II,III) oxide nanopowder, <50?nm particle size (TEM), 99.5% trace metals basis 1308-04-9 250 g $422 2021-03-22 Buy

COBALT(III) OXIDE BLACK Chemical Properties,Uses,Production

Uses

COBALT(III) OXIDE BLACK is used as a pigment; for glazing porcelain and pottery; and for coloring enamels.

Preparation

COBALT(III) OXIDE BLACK is prepared by heating cobalt compounds at low temperatures in air.

Reactions

Heating with hydrogen, carbon or carbon monoxide reduces the oxide to cobalt metal.
Co2O3 + 3H2→ 2Co + 3H2O
Co2O3 + 3CO→ 2Co + 3CO
2Co2O3 + 3C→ 4Co + 3CO2
Strong heating in air converts cobalt(III) oxide to tricobalt tetroxide.
Reactions with mineral acids produce their Co3+ salts:
Co2O3 + 6HCl → 2CoCl3 + 3H2O

Description

Neither the oxide Co2O3 nor the hydroxide Co(OH)3 is definitely established. The oxidation of cobalt(II) hydroxide in aqueous suspension with, for example, peroxides, or the destruction of a cobalt(III) complex with alkali gives a brown or black powder Co2O3.aq which upon drying at 150° yields the monohydrate Co2O3.H2O; this is probably best formulated as CoO(OH). When heated further in attempts to dehydrate it, the "monohydrate" begins to evolve oxygen (as well as water) at 300° with the formation of black Co3O4. When heated to 100° in air cobalt(II) hydroxide is converted to dark brown CoO(OH).

Chemical Properties

Steel-gray or black powder.Soluble in concentrated acids; insoluble in water.

Physical properties

Grayish black powder; density 5.18 g/cm3; decomposes at 895°C; insoluble in water; soluble in concentrated mineral acids.

Uses

Cobaltic oxide (Co2O3) is also known as cobalt oxide or cobalt black. It is dark gray to black and is used in pigments, ceramic glazes, and semiconductors.

Uses

Pigment, coloring enamels, glazing pottery.

Definition

Sometimes incorrectly called cobalt peroxide.

Preparation

Cobalt(III) oxide is prepared by heating cobalt compounds at low temperatures in air.

Safety Profile

: Moderately toxic by intraperitoneal and subcutaneous routes. Questionable carcinogen. Violent reaction with hydrogen peroxide. The oxide increases the sensitivity of nitroalkanes (e.g., nitromethane, nitroethane, and 1 nitropropane) to heat or detonation. See also COBALT COMPOUNDS.

COBALT(III) OXIDE BLACK Preparation Products And Raw materials

Raw materials

Preparation Products


COBALT(III) OXIDE BLACK Suppliers

Global( 164)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 20918 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Chongqing Chemdad Co., Ltd
+86-13650506873
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Hebei Yanxi Chemical Co., Ltd.
+8618633081222
peter@yan-xi.com CHINA 684 58
Hubei Ipure Biology Co., Ltd
+8618062405514
18062427325 ada@ipurechemical.com;ada@ipurechemical.com China 10352 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
HONG KONG IPURE BIOLOGY CO.,LIMITED
18062405514 86 18062405514
ada@ipurechemical.com CHINA 3475 58
Baoji Guokang Healthchem co.,ltd
09178656283
cngksw@aliyun.com CHINA 9476 58

View Lastest Price from COBALT(III) OXIDE BLACK manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-13 Cobalt(III) Oxide
1308-04-9
US $175000.00 / T 1T 99% 20tons Hebei Yanxi Chemical Co., Ltd.
2019-07-06 COBALT(III) OXIDE BLACK
1308-04-9
US $1.00 / kg 1kg 99% Customized career henan chemical co

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