*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : OM3570000
CHEMICAL NAME           : Magnesium hydroxide
CAS REGISTRY NUMBER     : 1309-42-8
LAST UPDATED            : 199701
DATA ITEMS CITED        : 8
MOLECULAR FORMULA       : H2-Mg-O2
MOLECULAR WEIGHT        : 58.33
WISWESSER LINE NOTATION : .MG..Q2
COMPOUND DESCRIPTOR     : Drug
                          Human
SYNONYMS/TRADE NAMES :
   * Asahi Glass 200-06
   * Baschem 12
   * Combustrol 500
   * Hydro-mag MA
   * Ki 22-5B
   * Kisuma 5
   * Kisuma 78
   * Kisuma 5A
   * Kisuma 4AF
   * Kisuma 5B
   * Kisuma 5BG
   * Kisuma 5B-N
   * Kisuma 5E
   * Kisuma S 4
   * Kyowamag F
   * Lycal 96 HSE
   * Magmesia hydrate
   * Magnesia magma
   * Magnesiamaito
   * Magnesium dihydroxide
   * Magox
   * Marinco H
   * Marinco H 1241
   * Martinal VPF 8812
   * Milk of magnesia
   * Milmag
   * Reachim
   * Star 200
   * Versamag
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human - infant
DOSE/DURATION           : 2747 mg/kg
TOXIC EFFECTS :
   Behavioral - somnolence (general depressed activity)
   Behavioral - coma
   Nutritional and Gross Metabolic - changes in chlorine
REFERENCE :
   JTCTDW Journal of Toxicology, Clinical Toxicology.  (Marcel Dekker, 270
   Madison Ave., New York, NY 10016)  V.19-    1982-  Volume(issue)/page/year:
   29,215,1991
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 8500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: -,1131,1990
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2780 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: -,1131,1990
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 8500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: -,1131,1990
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 815 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: -,1131,1990

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 80447
       No. of Facilities: 1664 (estimated)
       No. of Industries: 24
       No. of Occupations: 23
       No. of Employees: 41608 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 80447
       No. of Facilities: 3970 (estimated)
       No. of Industries: 36
       No. of Occupations: 55
       No. of Employees: 114743 (estimated)
       No. of Female Employees: 43640 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***