*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : WE6660000
CHEMICAL NAME           : Sodium thiosulfate, pentahydrate
CAS REGISTRY NUMBER     : 10102-17-7
LAST UPDATED            : 199710
DATA ITEMS CITED        : 7
MOLECULAR FORMULA       : O3-S2.2Na.5H2-O
MOLECULAR WEIGHT        : 317.17
WISWESSER LINE NOTATION :  NA2 S2-O-Q2 QH5
COMPOUND DESCRIPTOR     : Drug
                          Human
SYNONYMS/TRADE NAMES :
   * Ametox
   * Antichlor
   * Hypo
   * NSC-45624
   * Thiosulfuric acid (H2S2O3), disodium salt, pentahydrate
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human
DOSE/DURATION           : 300 mg/kg/7D
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - cyanosis
REFERENCE :
   TJEMAO Tohoku Journal of Experimental Medicine.  (Maruzen Co. Ltd., Export
   Dept., P.O. Box 5050, Tokyo Int., 100-31 Tokyo, Japan)  V.1-    1920-
   Volume(issue)/page/year: 63,383,1956
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >2500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   YKYUA6 Yakkyoku.  Pharmacy.  (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo,
   Japan)  V.1-    1950-  Volume(issue)/page/year: 31,959,1980
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 5600 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ARZNAD Arzneimittel-Forschung. Drug Research.  (Editio Cantor Verlag,
   Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.)  V.1-    1951-
   Volume(issue)/page/year: 31,1713,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2350 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - ataxia
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   KSRNAM Kiso to Rinsho.  Clinical Report.  (Yubunsha Co., Ltd., 1-5, Kanda
   Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan)  V.1-    1960-
   Volume(issue)/page/year: 13,89,1979
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 3 gm/kg
TOXIC EFFECTS :
   Cardiac - pulse rate increase, without fall in BP
   Vascular - BP elevation not characterized in autonomic section
   Lungs, Thorax, or Respiration - respiratory stimulation
REFERENCE :
   CNCRA6 Cancer Chemotherapy Reports.  (Bethesda, MD)  V.1-52, 1959-68.  For
   publisher information, see CTRRDO.  Volume(issue)/page/year: 50,255,1966

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X1294
       No. of Facilities: 358 (estimated)
       No. of Industries: 10
       No. of Occupations: 12
       No. of Employees: 3894 (estimated)
       No. of Female Employees: 2457 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***