Sodium thiosulfate pentahydrate

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

 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.

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 SO_x 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

 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 .