Magnesium oxide
RTECS #
OM3850000
CAS #
Updated
September 2013
Molecular Weight
40.31
Molecular Formula
MgO
Synonyms
Akro-mag
Animag
Calcined brucite
Calcined magnesia
Calcined magnesite
Granmag
Magcal
Magchem 100
Maglite
Magnesia
Magnesia USTA
Magnesium oxide fume
Magnesium oxide fume (ACGIH:OSHA)
Magnezu tlenek (Polish)
Magox
Magox 85
Magox 90
Magox 95
Magox 98
Magox OP
Marmag
Oxymag
Periclase
Seawater magnesia
Animag
Calcined brucite
Calcined magnesia
Calcined magnesite
Granmag
Magcal
Magchem 100
Maglite
Magnesia
Magnesia USTA
Magnesium oxide fume
Magnesium oxide fume (ACGIH:OSHA)
Magnezu tlenek (Polish)
Magox
Magox 85
Magox 90
Magox 95
Magox 98
Magox OP
Marmag
Oxymag
Periclase
Seawater magnesia
Tumorigenic Data and References
Route/Organism | Dose | Effect | Reference |
---|---|---|---|
intratracheal/hamster | lowest published toxic dose: 480 mg/kg/30W- intermittent | Tumorigenic: Equivocal tumorigenic agent by RTECS criteria Olfaction: Tumors Lung, Thorax, or Respiration: Tumors | CNREA8 33,2209,1973 |
Acute Toxicity Data and References
Route/Organism | Dose | Effect | Reference |
---|---|---|---|
inhalation/human | lowest published toxic concentration: 400 mg/m3 | 38MKAJ 2A,1745,1981 | |
inhalation/mammal (species unspecified) | lowest published toxic concentration: 4 mg/m3/12M | Nutritional and Gross Metabolic: Body temperature increase | VCVN1* -,104,1988 |
Other Multiple Dose Data and References
Route/Organism | Dose | Effect | Reference |
---|---|---|---|
inhalation/rat | lowest published toxic concentration: 1120 µg/m3/24H/29D- continuous | 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 | GISAAA 49(11),82,1984 |
inhalation/rat | lowest published toxic concentration: 1000 mg/m3/4H/50D- intermittent | Lung, Thorax, or Respiration: Other changes Blood: Other hemolysis with or without anemia | VCVN1* -,105,1988 |
Reviews
Organization | Standard | Reference |
---|---|---|
American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-time-weighted average 10 mg/m3 (inhal) | DTLVS* TLV/BEI,2013 |
American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-Not classifiable as a human carcinogen | DTLVS* TLV/BEI,2013 |
TOXICOLOGY REVIEW | NBREV* 5,1,1981 |
Standards and Regulations
Organization | Standard | Reference |
---|---|---|
Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 10 mg/m3 (fume) | DTLVS* 3,147,1971 |
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
Occupational Exposure Limit-ARAB Republic of Egypt | time-weighted average 10 mg/m3, JAN1993 | |
Occupational Exposure Limit-AUSTRALIA | time-weighted average 10 mg/m3 (fume), JUL2008 | |
Occupational Exposure Limit-AUSTRIA | MAK-TMW 10 mg/m3;KZW 20 mg/m3, inhal, 2007 | |
Occupational Exposure Limit-AUSTRIA | MAK-TMW 5 mg/m3;KZW 10 mg/m3, resp, 2007 | |
Occupational Exposure Limit-AUSTRIA | MAK-TMW 5 mg/m3;KZW 20 mg/m3, smoke, 2007 | |
Occupational Exposure Limit-BELGIUM | time-weighted average 10 mg/m3 (fume), MAR2002 | |
Occupational Exposure Limit-DENMARK | time-weighted average 6 mg(Mg)/m3, MAY2011 | |
Occupational Exposure Limit-FRANCE | VME 10 mg/m3 (fume), FEB2006 | |
Occupational Exposure Limit-GERMANY | MAK 1.5 mg/m3, resp., 2011 | |
Occupational Exposure Limit-GERMANY | MAK 4 mg/m3, inhal, 2011 | |
Occupational Exposure Limit-HUNGARY | time-weighted average 6 mg/m3 (resp), short term exposure limit 24 mg/m3 (resp), SEP2000 | |
Occupational Exposure Limit-ICELAND | time-weighted average 6 mg(Mg)/m3, NOV2011 | |
Occupational Exposure Limit-KOREA | time-weighted average 10 mg/m3, 2006 | |
Occupational Exposure Limit-MEXICO | time-weighted average 10 mg(Mg)/m3 (fume), 2004 | |
Occupational Exposure Limit-NEW ZEALAND | time-weighted average 10 mg/m3 (fume), JAN2002 | |
Occupational Exposure Limit-NORWAY | time-weighted average 10 mg/m3, JAN1999 | |
Occupational Exposure Limit-PERU | time-weighted average 10 mg/m3, JUL2005 | |
Occupational Exposure Limit-POLAND | MAC(time-weighted average) dust 10 mg/m3, JAN1999 | |
Occupational Exposure Limit-POLAND | MAC(time-weighted average) fume 5 mg/m3, JAN1999 | |
Occupational Exposure Limit-RUSSIA | short term exposure limit 4 mg/m3, JUN2003 | |
Occupational Exposure Limit-SWITZERLAND | MAK-week 3 mg/m3, fume, resp, JAN2011 | |
Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 10 mg/m3, 2003 | |
Occupational Exposure Limit-TURKEY | time-weighted average 15 mg/m3, JAN1993 | |
Occupational Exposure Limit-UNITED KINGDOM | time-weighted average 10 mg(Mg)/m3 (inhal. dust), OCT2007 | |
Occupational Exposure Limit-UNITED KINGDOM | time-weighted average 4 mg(Mg)/m3 (fume, resp. dust), OCT2007 | |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 15 ppm, total particulate | CFRGBR 29,1926.55,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 15 mg/m3 | CFRGBR 41,50-204.50,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 15 mg/m3, total particulate | CFRGBR 29,1910.1000,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 15 ppm, total particulate | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
Status in Federal Agencies
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health