Introduction:Basic information about CAS 7772-98-7|Sodium thiosulfate, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | Sodium thiosulfate |
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| CAS Number | 7772-98-7 | Molecular Weight | 158.108 |
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| Density | 1.667 | Boiling Point | 100°C |
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| Molecular Formula | Na2O3S2 | Melting Point | 48°C |
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| MSDS | ChineseUSA | Flash Point | / |
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Names
| Name | Sodium thiosulfate |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.667 |
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| Boiling Point | 100°C |
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| Melting Point | 48°C |
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| Molecular Formula | Na2O3S2 |
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| Molecular Weight | 158.108 |
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| Exact Mass | 157.908417 |
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| PSA | 103.66000 |
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| LogP | 0.50980 |
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| InChIKey | AKHNMLFCWUSKQB-UHFFFAOYSA-L |
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| SMILES | O=S([O-])([O-])=S.[Na+].[Na+] |
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| Storage condition | 2-8°C |
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| Stability | Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
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Toxicological Information
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
HEALTH HAZARD DATAACUTE 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)
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Safety Information
| Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
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| Hazard Codes | Xi:Irritant |
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| Risk Phrases | R36/37/38 |
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| Safety Phrases | S24/25-S23-S36-S26 |
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| RIDADR | NONH for all modes of transport |
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| WGK Germany | 1 |
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| RTECS | XN6476000 |
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| HS Code | 2830909000 |
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Customs
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Synonyms
| EINECS 231-867-5 |
| MFCD00003499 |
| disodium,dioxido-oxo-sulfanylidene-λ<sup>6</sup>-sulfane |