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| CAS No.: | 10102-17-7 |
|---|---|
| Name: | Sodium thiosulfate pentahydrate |
| Molecular Structure: | |
|
|
|
| Formula: | H10Na2O8S2 |
| Molecular Weight: | 248.20 |
| Synonyms: | Sodiumthiosulfate pentahydrate;Sodium thiosulfate;Disodium thiosulfate pentahydrate;Thiosulfuric acid (H2S2O3), disodium salt, pentahydrate; |
| EINECS: | 231-867-5 |
| Density: | 1.01 g/mL at 25 °C |
| Melting Point: | 48.5 °C |
| Boiling Point: | 100 °C |
| Solubility: | water: 1 M at 20 °C, clear, colorless |
| Appearance: | translucent crystals or white powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 24/25-37/39-36-26 |
| PSA: | 149.81000 |
| LogP: | 0.18830 |
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Chemistry
Product Name: Sodium thiosulfate pentahydrate (CAS NO.10102-17-7)
MF: H10Na2O8S2
MW: 248.18g/mol
EINECS: 231-867-5
Melting point: 48.5 °C
Boiling Point: 100 C
density: 1.01 g/mL at 25 °C
storage temp.: Store at RT.
solubility: H2O: 1 M at 20 °C, clear, colorless
Water Solubility: 680 g/L (20 °C)
Appearance: Colorless crystals
Stability: Stable under normal shipping and handling conditions.
Decomposition: Irritating and toxic fumes and gases, hydrogen sulfide, sodium oxide.
Incompatibilities: Moisture, strong acids, strong bases, strong oxidizing agents.
Product Categories: INORGANIC & ORGANIC CHEMICALS; Inorganic Chemicals; Inorganics; AlphabeticalBiochemicals and Reagents; Biochemicals and Reagents; Denaturation;Disulfide Bridge Cleavage Reagents; Metal and Ceramic Science; Salts; Sodium Salts; Inorganic Salts; Synthetic Reagents; Mass Spectrometry (MS)&LC-MS; Reagents for Mass Spectrometry (MS); Spectroscopy; Disulfide Bridge Cleavage ReagentsSynthetic Reagents; ACS GradeBiochemicals and Reagents; Essential Chemicals; Routine Reagents; Analytical Reagents for General Use; Puriss p.a. ACS; Q-S, Puriss p.a. ACS
Uses
Sodium thiosulfate pentahydrate (CAS NO.10102-17-7) is used in the Iodometry, photographic processing, gold extraction. It is also used in the chemical fiber, paper, leather, pesticide industry, etc.
Toxicity Data With Reference
| 1. | orl-hmn TDLo:300 mg/kg/7D:PUL | TJEMAO Tohoku Journal of Experimental Medicine. 63 (1956),383. | ||
| 2. | ipr-mus LD50:5600 mg/kg | ARZNAD Arzneimittel-Forschung. Drug Research. 31 (1981),1713. | ||
| 3. | ivn-mus LD50:2350 mg/kg | KSRNAM Kiso to Rinsho. Clinical Report. 13 (1979),89. | ||
| 4. | ivn-dog LDLo:3000 mg/kg | CNCRA6 Cancer Chemotherapy Reports. 50 (1966),255. |
Safety Profile
Moderately toxic by intravenous route. Human systemic effects by ingestion: cyanosis. Large doses internally have a cathartic action. Violent reaction with NaNO2. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also THIOSULFATES and SODIUM MONOXIDE.
Hazard Codes: 
Xi
Risk Statements: 36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 24/25-37/39-36-26
24/25: Avoid contact with skin and eyes
37/39: Wear suitable gloves and eye/face protection
36: Wear suitable protective clothing
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
WGK Germany: 1
RTECS: WE6660000
F: 10: Keep under argon.
HS Code: 28323000
Specification
Sodium thiosulfate pentahydrate , its CAS NO. is 10102-17-7, the synonyms are Ametox ; NBC-45624 ; Sodiumthiosulfate,pentahydrat ; Sulfothiorine ; Thiosulfuricacid(H2S2O3) disodiumsalt,pentahydrate ; Thiosulfuricacid,disodiumsalt,pentahydrate .