*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : XN6476000
CHEMICAL NAME           : Thiosulfuric acid, disodium salt
CAS REGISTRY NUMBER     : 7772-98-7
LAST UPDATED            : 199710
DATA ITEMS CITED        : 9
MOLECULAR FORMULA       : O3-S2.2Na
MOLECULAR WEIGHT        : 158.10
WISWESSER LINE NOTATION : WSSO &-NA- 2
SYNONYMS/TRADE NAMES :
   * Chlorine Control
   * Chlorine Cure
   * Declor-It
   * Disodium thiosulfate
   * S-Hydril
   * Sodium hyposulfite
   * Sodium oxide sulfide (Na2S2O3)
   * Sodium thiosulfate
   * Sodium thiosulfate anhydrous
   * Sodium thiosulphate (Na2S2O3)
   * Sodothiol
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD - Lethal dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >2500 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
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: 25,297,1925
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 5200 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NYKZAU Nippon Yakurigaku Zasshi.  Japanese Journal of Pharmacology. (Nippon
   Yakuri Gakkai, c/o Kyoto Daigaku Igakubu Yakurigaku Kyoshitsu, Konoe-cho,
   Yoshida, Sakyo-ku, Kyoto 606, Japan) V.40-    1944- Volume(issue)/page/year:
   53,404,1957
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 4 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
   Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium)  V.4-   
   1898-  Volume(issue)/page/year: 5,161,1899
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Amphibian - frog
DOSE/DURATION           : 6 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
   Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium)  V.4-   
   1898-  Volume(issue)/page/year: 5,161,1899

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 80153
       No. of Facilities: 11199 (estimated)
       No. of Industries: 107
       No. of Occupations: 62
       No. of Employees: 61158 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 80153
       No. of Facilities: 13359 (estimated)
       No. of Industries: 118
       No. of Occupations: 89
       No. of Employees: 143967 (estimated)
       No. of Female Employees: 55082 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***