Manganese(III) oxide

Modify Date: 2025-08-21 10:51:59

Manganese(III) oxide Structure
Manganese(III) oxide structure
Common Name Manganese(III) oxide
CAS Number 1317-34-6 Molecular Weight 157.874
Density 4.5 g/mL at 25ºC(lit.) Boiling Point N/A
Molecular Formula Mn2O3 Melting Point 1080ºC (dec.)
MSDS Chinese USA Flash Point N/A
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name oxo(oxomanganiooxy)manganese
Synonym More Synonyms

 Chemical & Physical Properties

Density 4.5 g/mL at 25ºC(lit.)
Melting Point 1080ºC (dec.)
Molecular Formula Mn2O3
Molecular Weight 157.874
Exact Mass 157.860840
PSA 43.37000

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OP0915000
CHEMICAL NAME :
Manganese(III) oxide
CAS REGISTRY NUMBER :
1317-34-6
LAST UPDATED :
199712
DATA ITEMS CITED :
25
MOLECULAR FORMULA :
Mn2-O3
MOLECULAR WEIGHT :
157.88
WISWESSER LINE NOTATION :
.MN2.O3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intratracheal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - emphysema Lungs, Thorax, or Respiration - acute pulmonary edema
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 20(1),25,1955
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
616 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ZVKOA6 Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.5- 1960- Volume(issue)/page/year: 19,186,1974 *** REVIEWS *** ACGIH TLV-TWA 0.2 mg(Mn)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:CL 5 mg(Mn)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,149,1971 OSHA PEL (Gen Indu):CL 5 mg(Mn)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):CL 5 mg(Mn)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):CL 5 mg(Mn)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):CL 5 mg(Mn)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 mg(Mn)/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg(Mn)/m3 JAN 1993 OEL-DENMARK:TWA 2.5 mg(Mn)/m3 JAN 1993 OEL-FINLAND:TWA 2.5 mg(Mn)/m3 JAN 1993 OEL-HUNGARY:TWA 0.3 mg(Mn)/m3;STEL 0.6 mg(Mn)/m3 JAN 1993 OEL-JAPAN:TWA 0.3 mg(Mn)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 1 mg(Mn)/m3 JAN 1993 OEL-POLAND:TWA 0.3 mg(Mn)/m3 JAN 1993 OEL-SWEDEN:TWA 1 mg(Mn)/m3;STEL 2.5 mg(Mn)/m3 (resp. dust) JAN 1993 OEL-SWEDEN:TWA 2.5 mg(Mn)/m3;STEL 5 mg(Mn)/m3 (total dust) JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg(Mn)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2022 No. of Facilities: 913 (estimated) No. of Industries: 8 No. of Occupations: 12 No. of Employees: 16960 (estimated) No. of Female Employees: 2764 (estimated)

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases 26-36
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS OP0915000
HS Code 2820900000

 Customs

HS Code 2820900000

 Synonyms

Dimanganese trioxide
Manganese sisquioxide
Manganese(III) oxide
EINECS 215-264-4
Manganic oxide
Manganese sesquioxide
MFCD00016217
Manganese trioxide
Manganese manganate
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