*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : FO0175000
CHEMICAL NAME           : Chloric acid, magnesium salt
CAS REGISTRY NUMBER     : 10326-21-3
LAST UPDATED            : 199801
DATA ITEMS CITED        : 11
MOLECULAR FORMULA       : Cl2-O6.Mg
MOLECULAR WEIGHT        : 191.21
WISWESSER LINE NOTATION :  MG  G-O3*2
COMPOUND DESCRIPTOR     : Reproductive Effector
SYNONYMS/TRADE NAMES :
   * Chlorate salt of magnesium
   * De-fol-ate
   * E-Z-Off
   * KRMD 58
   * Magnesium dichlorate
   * Magron
   * MC Defoliant
   * Ortho MC
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 6348 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(4),68,1983
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1100 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Cardiac - other changes
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 35,1,1929
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intratracheal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 700 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   MZUZA8 Meditsinskii Zhurnal Uzbekistana.  (V/O Mezhdunarodnaya Kniga, 113095
   Moscow, USSR) No.1-    1957-  Volume(issue)/page/year: (9),26,1959
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 5235 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(4),68,1983
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intratracheal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   MZUZA8 Meditsinskii Zhurnal Uzbekistana.  (V/O Mezhdunarodnaya Kniga, 113095
   Moscow, USSR) No.1-    1957-  Volume(issue)/page/year: (9),26,1959
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 8660 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(4),68,1983
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 1500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   MZUZA8 Meditsinskii Zhurnal Uzbekistana.  (V/O Mezhdunarodnaya Kniga, 113095
   Moscow, USSR) No.1-    1957-  Volume(issue)/page/year: (9),26,1959
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2 gm/kg/20D-I
TOXIC EFFECTS :
   Brain and Coverings - other degenerative changes
   Liver - hepatitis (hepatocellular necrosis), diffuse
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   MZUZA8 Meditsinskii Zhurnal Uzbekistana.  (V/O Mezhdunarodnaya Kniga, 113095
   Moscow, USSR) No.1-    1957-  Volume(issue)/page/year: (9),26,1959
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 508 mg/kg
SEX/DURATION            : female 1-20 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(4),68,1983

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-RUSSIA:STEL 5 mg/m3 JAN 1993

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

 
                            *** END OF RECORD ***