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Cobalt oxide

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Cobalt oxide

EINECS 215-154-6
CAS No. 1307-96-6 Density 6.45 g/cm3
Solubility insoluble in water Melting Point 1785 °C
Formula CoO Boiling Point
Molecular Weight 74.93 Flash Point
Transport Information UN 3288 6.1/PG 3 Appearance Black powder
Safety 24-37-60-61 Risk Codes 22-43-50/53
Molecular Structure Molecular Structure of 1307-96-6 (Cobalt oxide) Hazard Symbols HarmfulXn,DangerousN
Synonyms

C.I. 77322;C.I. Pigment Black 13;Cobalt Black;Cobalt monooxide;Cobalt monoxide;Cobalt(2+) oxide;Cobalt(II) oxide;Cobaltous oxide;Cobaltous oxide(CoO);FCO 178;Zaffre;

 

Cobalt oxide Chemical Properties

Chemistry informtion about Cobalt(II) Oxide (CAS NO.1307-96-6) is:
IUPAC Name: Oxocobalt
Synonyms: C.I. 77322 ; C.I. Pigment Black 13 ; C.I.77322 ; C.I.pigmentblack13 ; CI77322 ; CIpigmentblack13 ; Cobalt monooxide ; Cobalt Oxide (CoO)
Product Categories: Inorganic & Organic Chemicals ; Inorganics
MF: CoO
MW: 74.93
EINECS: 215-154-6 
Density: 6.45 g/cm3
Melting Point: 1785 °C
Water Solubility: insoluble
Sensitive: Air Sensitive
Merck: 14,2446
Stability: Stability Stable, but may be moisture sensitive.
Following is the molecular structure of Cobalt(II) Oxide (CAS NO.1307-96-6) is:

Cobalt oxide Uses

Cobalt(II) Oxide (CAS NO.1307-96-6) is used in pigments for ceramics, glass coloring & decolorization, prepn of cobalt metal catalysts, oxidation catalyst for drying oils, fast drying paints & varnishes, cobalt powder for binder in sintered tungsten carbide, in semiconductors.It alsohas for centuries used as a coloring agent on kiln fired pottery, the earliest examples go back to 12th century German pottery.[6] The additive provides a deep shade of blue named Cobalt blue. The band gap (CoO) is around 2.4 eV.

Cobalt oxide Production

Raw Materials are Sodium Hydroxide-->Sulfuric Acid -->Nitric Acid-->Sodium Carbonate-->Ammonium Hydroxide-->Sodium Hypochlorite-->Oxalic Acid-->Cobalt Chloride-->Extractant-->Chloric Acid-->Cobalt .
Preparation Products are Ammonia Synthesis Catalyst-->Porcelain Glaze,Industrial-->Ceramic Pigment.

Cobalt oxide Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LDLo oral 89mg/kg (89mg/kg)   Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.
mouse LD50 subcutaneous 125mg/kg (125mg/kg)   Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.
mouse LDLo intramuscular 400mg/kg (400mg/kg)   Cancer Research. Vol. 22, Pg. 152, 1962.
rat LD50 oral 202mg/kg (202mg/kg) behavioral: somnolence (general depressed activity) gastrointestinal: "hypermotility, diarrhea" Food and Chemical Toxicology. Vol. 20, Pg. 311, 1982.
rat LDLo intratracheal 50mg/kg (50mg/kg)   National Technical Information Service. Vol. AEC-TR-6710,

Cobalt oxide Consensus Reports

IARC Cancer Review: Group 2B IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 52 , 1991,p. 363.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Cobalt and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

Cobalt oxide Safety Profile

Suspected carcinogen with experimental carcinogenic and tumorigenic data. Poison by ingestion, subcutaneous, and intratracheal routes. Moderately toxic by intramuscular route. Violent reaction with hydrogen peroxide. See also COBALT. Note: The commercial oxides are usually not definite chemical compounds but mixtures of the cobalt oxides.
Hazard Codes:
HarmfulXn
DangerousN
Risk Statements:
R22:Harmful if swallowed. 
R43:May cause sensitization by skin contact. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements:
S24:Avoid contact with skin. 
S37:Wear suitable gloves. 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3288 6.1/PG 3
WGK Germany: 3
RTECS: GG2800000
HazardClass: 6.1(b)
PackingGroup: III

Cobalt oxide Analytical Methods

For occupational chemical analysis use NIOSH: Cobalt, 7027; Elements, 7300.

Cobalt oxide Specification

Cobalt(II) Oxide (CAS NO.1307-96-6) is a olive green, red, gray or black, odorless powder.
First Aid Measures:
Ingestion: Never give anything by mouth to an unconscious person. Get medical aid. Do not induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention. May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin: May cause skin irritation.Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.May cause eye irritation. Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
Handling and Storage:
Storage: Kepp container tightly closed. Suitable for any general chemical storage area. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

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