Ammonium thiosulfate

Ammonium thiosulfate Structure
Ammonium thiosulfate
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Common Name Ammonium thiosulfate
CAS Number 7783-18-8 Molecular Weight 148.205
Density 1.679 g/mL at 25 °C(lit.) Boiling Point N/A
Molecular Formula H8N2O3S2 Melting Point 180°C (dec.)
MSDS Chinese USA Flash Point N/A

 Names

Name Ammonium thiosulfate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.679 g/mL at 25 °C(lit.)
Melting Point 180°C (dec.)
Molecular Formula H8N2O3S2
Molecular Weight 148.205
Exact Mass 147.997635
PSA 104.48000
LogP 1.84280
Stability Stable. Hygroscopic.

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XN6465000
CHEMICAL NAME :
Thiosulfuric acid, diammonium salt
CAS REGISTRY NUMBER :
7783-18-8
LAST UPDATED :
199710
DATA ITEMS CITED :
11
MOLECULAR FORMULA :
O3-S2.2H4-N

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 :
2890 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - emphysema Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Blood - hemorrhage
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 26(6),54,1982
TYPE OF TEST :
LC - Lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>2260 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(12),53,1985
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
2100 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(12),53,1985
TYPE OF TEST :
LC - Lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1800 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(12),53,1985
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1098 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 26(6),54,1982 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 10 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80257 No. of Facilities: 15537 (estimated) No. of Industries: 92 No. of Occupations: 45 No. of Employees: 56583 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80257 No. of Facilities: 19533 (estimated) No. of Industries: 80 No. of Occupations: 102 No. of Employees: 149371 (estimated) No. of Female Employees: 53315 (estimated)

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Risk Phrases R36/37/38
Safety Phrases S26-S37
RIDADR NONH for all modes of transport
WGK Germany 1
RTECS XN6465000
HS Code 2832300000

 Customs

HS Code 2832300000

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 Synonyms

diazanium,dioxido-oxo-sulfanylidene-λ<sup>6</sup>-sulfane
MFCD00015965
EINECS 231-982-0