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Magnesium oxide

Names

[ CAS No. ]:
1309-48-4

[ Name ]:
Magnesium oxide

[Synonym ]:
magnesium oxalate
MAGNESIUM PERMANGANATE HYDRATE
Ethanedioic acid,magnesium salt
Magnesiumoxalatedihydrate
magnesium oxalate dihydrate,puratronic
MgO
Oxalic acid magnesium
Oxalic acid magnesium salt
Magnesiumoxalat-2-hydrat
MFCD00011109
Mg monoxide
EINECS 215-171-9
magnesium monoxide
Magnesiumoxalat

Chemical & Physical Properties

[ Density]:
3.58

[ Boiling Point ]:
3600ºC

[ Melting Point ]:
2852ºC

[ Molecular Formula ]:
MgO

[ Molecular Weight ]:
40.304

[ Flash Point ]:
3600ºC

[ Exact Mass ]:
39.979958

[ PSA ]:
17.07000

[ Index of Refraction ]:
1.736

[ Stability ]:
Stable. Incompatible with bromine trifluoride, bromine trichloride, phosphorus pentachloride.

[ Water Solubility ]:
5 M HCl: 0.1 M at 20 °C, clear, colorless | 6.2 mg/L (20 ºC), reacts

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OM3850000
CHEMICAL NAME :
Magnesium oxide
CAS REGISTRY NUMBER :
1309-48-4
LAST UPDATED :
199712
DATA ITEMS CITED :
33
MOLECULAR FORMULA :
Mg-O
MOLECULAR WEIGHT :
40.31
WISWESSER LINE NOTATION :
MG O

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Human
DOSE/DURATION :
400 mg/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
38MKAJ "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2nd rev. ed. in 1985. Volume(issue)/page/year: 2A,1745,1981 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1120 ug/m3/24H/29D-C
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 49(11),82,1984 ** TUMORIGENIC DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intratracheal
SPECIES OBSERVED :
Rodent - hamster
DOSE/DURATION :
480 mg/kg/30W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Sense Organs and Special Senses (Olfaction) - tumors Lungs, Thorax, or Respiration - tumors
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 33,2209,1973 *** REVIEWS *** ACGIH TLV-TWA 10 mg/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:TWA 10 mg/m3 (fume) 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: 3,147,1971 OSHA PEL (Gen Indu):8H TWA 15 mg/m3, total particulate 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):8H TWA 15 ppm, total particulate 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):8H TWA 15 ppm, total particulate 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):8H TWA 15 mg/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-ARAB Republic of Egypt:TWA 10 mg/m3 JAN 1993 OEL-AUSTRALIA:TWA 10 mg/m3 JAN 1993 OEL-BELGIUM:TWA 10 mg/m3 JAN 1993 OEL-DENMARK:TWA 6 mg/m3 JAN 1993 OEL-FRANCE:TWA 10 mg/m3 JAN 1993 OEL-GERMANY:TWA 6 mg/m3 JAN 1993 OEL-HUNGARY:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 10 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 15 mg/m3 JAN 1993 OEL-POLAND:TWA 15 mg/m3 JAN 1993 OEL-RUSSIA:STEL 5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 6 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 6 mg/m3;STEL 12 mg/m3 JAN 1993 OEL-TURKEY:TWA 15 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 10 mg/m3 (total dust) 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 : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80298 No. of Facilities: 28931 (estimated) No. of Industries: 201 No. of Occupations: 134 No. of Employees: 354380 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80298 No. of Facilities: 42587 (estimated) No. of Industries: 258 No. of Occupations: 177 No. of Employees: 765812 (estimated) No. of Female Employees: 149523 (estimated)

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R20/22

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
UN 1418

[ WGK Germany ]:
1

[ RTECS ]:
OM3850000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
25199010

Synthetic Route

Precursor & DownStream

Customs

[ HS Code ]: 25199010

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