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Registry of Toxic Effects of Chemical Substances (RTECS)

Arsenic acid, magnesium salt

RTECS #

CG1050000

CAS #

10103-50-1

Updated

September 201

Molecular Weight

312.12

Molecular Formula

AsH3O4·xMg

Synonyms

Arseniate de magnesium (French)

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
oral/mouse lethal dose (50 percent kill): 315 mg/kgIRGGAJ 20,21,1963
oral/rabbit lowest published lethal dose: 80 mg/kgGastrointestinal: Nausea or vomiting

Behavioral: Food intake (animal)

Behavioral: Somnolence (general depressed activity)
AIHAAP 19,504,1958
oral/rat lowest published lethal dose: 280 mg/kgTXAPA9 1,156,1959

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
oral/rat lowest published toxic dose: 1680 mg/kg/4W- intermittentBlood: Changes in cell count (unspecified)

Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field
AIHAAP 19,504,1958
oral/rat lowest published toxic dose: 2100 mg/kg/38D- intermittentGastrointestinal: Hypermotility, diarrheaAIHAAP 19,504,1958

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 0.01 mg(As)/m3DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Confirmed human carcinogenDTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airtime-weighted average 0.5 mg(As)/m3DTLVS* 3,16,1971
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 Egypttime-weighted average 0.2 mg(As)/m3, JAN1993
Occupational Exposure Limit-AUSTRALIAtime-weighted average 0.05 mg(As)/m3, Carcinogen, JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 0.1 mg(As)/m3, Carcinogen, MAR2002
Occupational Exposure Limit-DENMARKtime-weighted average 0.01 mg(As)/m3, carc, MAY2011
Occupational Exposure Limit-HUNGARYceiling concentration 0.01 mg(As)/m3, Skin, Carcinogen, SEP2000
Occupational Exposure Limit-INDIAtime-weighted average 0.2 mg(As)/m3, JAN1993
Occupational Exposure Limit-KOREAtime-weighted average 0.2 mg(As)/m3, 2006
Occupational Exposure Limit-MEXICOtime-weighted average 0.2 mg(As)/m3, 2004
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 0.05 mg(As)/m3, carcinogen, JAN2002
Occupational Exposure Limit-NORWAYtime-weighted average 0.01 mg(As)/m3, JAN1999
Occupational Exposure Limit-POLANDMAC(time-weighted average) 0.01 mg(As)/m3, JAN1999
Occupational Exposure Limit-SWEDENtime-weighted average 0.01 mg(As)/m3, Carcinogen, JUN2005
Occupational Exposure Limit-SWITZERLANDMAK-week 0.1 mg(As)/m3, carc 1, inhal, JAN2011
Occupational Exposure Limit-THAILANDtime-weighted average 0.5 mg(As)/m3, JAN1993
Occupational Exposure Limit-THE PHILIPPINEStime-weighted average 0.5 mg(As)/m3, JAN1993
Occupational Exposure Limit-TURKEYtime-weighted average 0.5 mg(As)/m3, JAN1993
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 0.1 mg(As)/m3, carc, OCT2007
Occupational Safety and Health Administration (OSHA)-cancer hazardCFRGBR 29,1910.1018,1987

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO ARSENIC, INORGANIC-airCarcinogen ceiling concentration 0.002 mg(As)/m3/15MNIOSH* DHHS #92-100,1992

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
NIOSH CURRENT INTELLIGENCE BULLETIN 14, 1976
NTP 10th Report on Carcinogens,2002:Known to be a human carcinogen
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