| Identification | More | [Name]
Cobalt sulfate | [CAS]
10124-43-3 | [Synonyms]
Cobalt (2+) sulfate
Cobalt sulfate (1:1)
cobalt(2+)sulfate
Cobalt(ii) sulfate (1:1)
Cobalt(ii) sulphate
cobalt(ii)sulfate(1:1)
cobalt(ii)sulphate
cobaltbrown
cobaltmonosulfate
Cobaltoussulfate,anhydrous
cobaltoussulfatesalt(1:1)
cobaltsulfate(1:1)
cobaltsulfate(coso4)
CoSO4
Sulfuric acid, cobalt(2+) salt (1:1)
Sulfuricacid,cobalt(2+)salt(1:1)
sulfuricacid,cobalt(2++)salt(1:1)
COBALT ATOMIC SPECTROSCOPY STD. CONC.1.0
Cobalt Sulphate
COBALT ATOMIC SPECTROSCOPY STD. CONC.10. 00 G CO, AMPOULE | [EINECS(EC#)]
233-334-2 | [Molecular Formula]
CoO4S | [MDL Number]
MFCD00010943 | [Molecular Weight]
155 | [MOL File]
10124-43-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Red powder or rose pink crystalline solid. Odorless. | [Melting point ]
decomposes at 1140℃ [JAN85] | [density ]
d425 3.71 | [vapor pressure ]
0Pa at 20℃ | [solubility ]
H2O: soluble
| [form ]
red orthorhombic crystals | [color ]
red orthorhombic crystals, crystalline | [Water Solubility ]
dissolves slowly in boiling H2O [MER06]; g/100g solution H2O: 19.7 ± 0.1 (0°C), 27.2 ± 0.1 (25°C), 27.8 (100°C); solid phase, CoSO4 · 7H2O (0°C, 25°C), CoSO4 ·H2O (100°C) [KRU93] | [Merck ]
13,2473 | [InChI]
InChI=1S/Co.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2 | [InChIKey]
BGORGFZEVHFAQU-UHFFFAOYSA-L | [SMILES]
S([O-])([O-])(=O)=O.O.[Co+2] | [LogP]
-1.031 (est) | [Uses]
Ceramics, pigments, glazes, in plating baths for
cobalt, additive to soils, catalyst, paint and ink drier,
storage batteries. | [CAS DataBase Reference]
10124-43-3(CAS DataBase Reference) | [NIST Chemistry Reference]
Cobalt sulfate(10124-43-3) | [EPA Substance Registry System]
10124-43-3(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
Red powder or rose pink crystalline solid. Odorless. | [General Description]
Odorless rose-pink solid. Sinks and mixes with water. | [Reactivity Profile]
Acidic salts, such as COBALT SULFATE(10124-43-3), are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. | [Air & Water Reactions]
Water soluble. | [Hazard]
May not be used in food products (FDA).
Possible carcinogen. | [Health Hazard]
Inhalation causes shortness of breath and coughing; permanent disability may occur. Ingestion causes pain and vomiting. Contact with eyes or skin causes irritation. | [Potential Exposure]
Many be used to catalyze organic reactions. | [Fire Hazard]
Special Hazards of Combustion Products: Toxic cobalt oxide fumes may form in fire. | [First aid]
Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. | [Shipping]
UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. | [Incompatibilities]
Aqueous solution reacts with bases, generating some heat. May react as either oxidizing agents or reducing agents | [Description]
The blue, crystalline hydrate Co2(SO4)3.18H2O is prepared by the oxidation of cobalt(II) sulphate in 8N sulphuric acid either electrolytically or chemically with ozone or fluorine. It is stable in the dry state, but is decomposed by water with evolution of oxygen; it is fairly stable in solution in dilute sulphuric acid. Cobalt(III) alums MCo(SO4)2.12H2O (M = K, Rb, Cs or NH4) can be isolated as blue crystals from the mixed cooler solutions of the two sulphates in dilute sulphuric acid. The potassium alum is diamagnetic, the rubidium salt has a magnetic moment less than 1 B.M. and the ammonium alum has a moment of 2.1 B.M. at 304°K. The hydrated sulphate also has a small positive magnetic susceptibility. The sulphate is believed like the alums to contain the [Co(H2O)6]3+ ion. | [Waste Disposal]
Use a licensed professional waste disposal service to dispose of this material. All federal, state, and local environmental regulations must be observed. | [Definition]
ChEBI: Cobalt(2+) sulfate is a compound of cobalt and sulfate in which the ratio of cobalt (+2 oxidation state) to sulfate is 1:1. It contains a cobalt(2+). | [Purification Methods]
Crystallise it three times from conductivity water (1.3mL/g) between 100o and 0o depending on which hydrate is required. The heptahydrate crystallises below 44o and is efflorescent with m 97o . Between 44o and 70o the monoclinic hexahydrate CoSO4.6H2O m 41.5o is formed, and above 70o the monohydrate CoSO4.H2O m 71o is obtained. The pale reddish or lavender-coloured anhydrous salt is obtained by heating the hydrate above 250o, boiling with conc H2SO4 or heating with (NH4)2SO4). | [Flammability and Explosibility]
Notclassified | [Carcinogenicity]
Cobalt sulfate is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals. |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R49:May cause cancer by inhalation.
R42/43:May cause sensitization by inhalation and skin contact .
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R22:Harmful if swallowed. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste .
S22:Do not breathe dust . | [RIDADR ]
UN 3082 9/PG 3
| [WGK Germany ]
2
| [Safety Profile]
Poison by intravenous
and intraperitoneal routes. Moderately toxic
by ingestion. Questionable carcinogen.
When heated to decomposition it emits
toxic fumes of SOx See also COBALT
COMPOUNDS. | [Hazardous Substances Data]
10124-43-3(Hazardous Substances Data) |
| Questions And Answer | Back Directory | [Physical Properties]
The anhydrous salt of cobalt(II) sulfate is a red orthogonal crystal; density 3.71g/cm3; melts above 700°C; the monohydrate is red orthogonal crystal having a density of 3.08 g/cm3; the heptahydrate is a pink salt, monoclinic prismatic crystals, density 2.03 g/cm3; heptahydrate dehydrates to hexahydrate at 41°C and converts to monohydrate at 74°C; the anhydrous salt and heptahydrates are soluble in water; monohydrate slowly dissolves in boiling water.
| [Uses]
Cobalt(II) sulfate is used in storage batteries and electroplating baths for cobalt. It also is used as a dryer for lithographic inks; in pigments for decorating porcelains; in ceramics, glazes and enamels to protect from discoloring; and as a additive to soils.
| [Preparation]
Cobalt(II) sulfate is prepared by dissolving cobalt(II) oxide, hydroxide or carbonate in dilute sulfuric acid, followed by crystallization:
CoO + H2SO4 → CoSO4 + H2O
Co(OH)2 + H2SO4 → CoSO4 + 2H2O
CoCO3 + H2SO4 → CoSO4 + CO2 + H2O
Crystallization yields the commercial product, pink heptahydrate. Further oxidation of this salt in dilute H2SO4 with ozone or fluorine produces hydrated cobalt(III) sulfate, Co2(SO4)3•18H2O. This blue octadecahydrate, Co2(SO4)3•18H2O also is obtained by electrolytic oxidation of cobalt(II) chloride or any cobalt(II) salt solution in 8M sulfuric acid.
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