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COBALT(III) OXIDE BLACK

COBALT(III) OXIDE BLACK structure

CAS No.: 1308-04-9

Chemical Name:: COBALT(III) OXIDE BLACK

Synonyms: COBALT BLACK;Cabalt trioxide;COBALT(II,III) OXIDE;c.i.77323;dicobaltoxide;cobaltperoxide;cobalttrioxide;Cobolt-3-oxide;Cobalt(Ⅲ)oxide;COBALTIC OXIDE

CBNumber:: CB4291419

Molecular Formula:: Co2O3

Molecular Weight:: 165.86

MDL Number:: MFCD00036266

MOL File:: 1308-04-9.mol

Last updated:2024-12-18 14:08:52

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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
solubility	insoluble in H2O; soluble in concentrated acid solutions
form	powder
color	gray-black
Water Solubility	insoluble H2O; soluble conc acids [HAW93]
EPA Substance Registry System	Cobalt oxide (Co2O3) (1308-04-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS08,GHS07
Signal word	Warning
Hazard statements	H351-H317-H410-H302
Precautionary statements	P201-P202-P281-P308+P313-P405-P501-P264-P270-P301+P312-P330-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P273-P391-P501
Hazard Codes	Xn
Risk Statements	36/37/38-40-43-22
Safety Statements	26-36/37/39-36/37
WGK Germany	1
RTECS	GG2500000
Toxicity	mouse,LD50,subcutaneous,2064mg/kg (2064mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.

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

Pigment, coloring enamels, glazing pottery.

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.

Preparation

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

Definition

Sometimes incorrectly called cobalt peroxide.

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

Nitric acid Ammonium bicarbonate Cobalt

Preparation Products

Aluminium potassium sulfate dodecahydrate Lead chromate Tartrazine Potassium dichromate 103 chrome yellow

Fosetyl aluminum Fast Malachite Blue lake CI NO 77605 Aluminum ammonium sulfate Repair the lear

Aluminum hydroxide Aluminum Stearate

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COBALT(III) OXIDE BLACK Suppliers

Global( 225)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+86-15531157085 +86-15531157085	abby@chuanghaibio.com	China	8805	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-81148696 +86-15536356810	1022@dideu.com	China	3882	58
Hebei Mujin Biotechnology Co.,Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12821	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18140	58
Yujiang Chemical (Shandong) Co.,Ltd.	+8617736087130	catherine@yjchem.com.cn	China	994	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21631	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29865	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
Hebei Yanxi Chemical Co., Ltd.	+8617531153977	allison@yan-xi.com	China	5855	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Shaanxi Dideu Medichem Co. Ltd	58
Hebei Mujin Biotechnology Co.,Ltd	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Yujiang Chemical (Shandong) Co.,Ltd.	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Chongqing Chemdad Co., Ltd	58
Hebei Yanxi Chemical Co., Ltd.	58

View Lastest Price from COBALT(III) OXIDE BLACK manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-03-21	COBALT(III) OXIDE BLACK 1308-04-9	US $0.00 / KG	1KG	99%	50000KG/month	Hebei Mujin Biotechnology Co.,Ltd
2025-03-20	COBALT(III) OXIDE BLACK 1308-04-9	US $10.00-8.00 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd
2025-03-07	Cobalt(III) Oxide 1308-04-9	US $175000.00 / T	1T	99%	20tons	Hebei Yanxi Chemical Co., Ltd.

COBALT(III) OXIDE BLACK
1308-04-9
US $0.00 / KG
99%
Hebei Mujin Biotechnology Co.,Ltd

COBALT(III) OXIDE BLACK
1308-04-9
US $10.00-8.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

Cobalt(III) Oxide
1308-04-9
US $175000.00 / T
99%
Hebei Yanxi Chemical Co., Ltd.

COBALT(III) OXIDE BLACK Spectrum

COBALT(III) OXIDE BLACK(1308-04-9)IR1

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dicobalttrioxide COBALT(III) OXIDE R. G., FOR THE DETERMI NATION OF SULFUR COBALT(III) OXIDE BLACK, PURE Cobalt(Ⅱ，Ⅲ）oxide Cobaltic oxide monohydrate BLACKCOBALTICOXIDE cobalt(iii)oxide cobaltoxide(co2o3) cobaltperoxide cobaltsesqioxide cobalttrioxide dicobaltoxide COBALT(III) OXIDE BL Cobolt-3-oxide cobalitic oxide BLACK COBALT OXIDE COBALT SESQUIOXIDE COBALT OXIDE, GRAY COBALT TETRAOXIDE Cobalt(Ⅲ)oxide COBALT(+2,+3)OXIDE COBALT(2,3) OXIDE COBALTIC TETRAOXIDE COBALTIC OXIDE COBALT(II)-COBALT(III)-OXIDE COBALT(III) OXIDE BLACK c.i.77323 cobalt(3+)oxide Co2O3 COBALT(III) OXIDE TIANFU-CHEM 1308-04-9 COBALT(III) OXIDE BLACK COBALT BLACK Cabalt trioxide COBALT(II,III) OXIDE Titanium Dioxide (TiO2) Sputtering Targets 1308-04-9 Co2O3 Inorganics