*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : SZ6400000
CHEMICAL NAME           : Phosphonic acid
CAS REGISTRY NUMBER     : 13598-36-2
LAST UPDATED            : 199806
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : H3-O3-P
MOLECULAR WEIGHT        : 82.00
SYNONYMS/TRADE NAMES :
   * Orthophosphorus acid
   * Phosphorus trihydroxide
   * Trihydroxyphosphine
 
                       *** 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           : 1895 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: 56(4),24,1991
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1700 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TOVEFN Toksikologicheskii Vestnik.  (18-20 Vadkovskii per.  Moscow, 101479,
   Russia) History Unknown  Volume(issue)/page/year: (6),38,1995
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1707 mg/kg/30D-I
TOXIC EFFECTS :
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - monoamine oxidase
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 56(4),24,1991

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - T0822
       No. of Facilities: 361 (estimated)
       No. of Industries: 5
       No. of Occupations: 6
       No. of Employees: 650 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - T0822
       No. of Facilities: 228 (estimated)
       No. of Industries: 3
       No. of Occupations: 7
       No. of Employees: 2710 (estimated)
       No. of Female Employees: 14 (estimated)

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

 
                            *** END OF RECORD ***