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1317-34-6

Name MANGANESE (III) OXIDE
CAS 1317-34-6
EINECS(EC#) 215-264-4
Molecular Formula Mn2O3
MDL Number MFCD00016217
Molecular Weight 157.87
MOL File 1317-34-6.mol

Chemical Properties

Definition In nature as manganite, a manganese ore.
Appearance Black, lustrous powder, sometimes tinged brown. Very hard.decomposes at 1080C. Soluble in cold hydrochloric acid; not soluble in nitric acid (decomposes), hot sulfuric acid; insoluble in water. Noncombustible.
Melting point  1080°C (dec.)
density  4.5 g/mL at 25 °C(lit.)
solubility  insoluble in H2O
form  Powder
color  Black
Specific Gravity 4.5
Water Solubility  Soluble in acid and ammonium chloride. Insoluble in water, alcohol and acetone.
Merck  14,5737
Exposure limits ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3
InChIKey GEYXPJBPASPPLI-UHFFFAOYSA-N
CAS DataBase Reference 1317-34-6(CAS DataBase Reference)
EPA Substance Registry System Manganese(III) oxide (1317-34-6)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  3
RTECS  OP0915000
TSCA  Yes
Safety Profile
Moderately toxic by subcutaneous and intratracheal routes. See also MANGANESE COMPOUNDS.
Toxicity
mouse,LD50,subcutaneous,616mg/kg (616mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.

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