7772-98-7 Sodium thiosulfate

Superiority:

Product Name: Sodium thiosulfate
Synonyms: Sodioum Thiosulfate;Sodium thiosulfate 、Sodium thiosulfate pentahydrate;SODIUM THIOSFAT 0.025N VOL SOL;sodium thosulfate, anhydrous;Sodium thiosulfate, 98.5%, anhydrous, extra pure;Sodium Thiosulfate [for General Organic Chemistry];Detoxol;Thiosulfuric acid sodium
CAS: 7772-98-7
MF: Na2O3S2
MW: 158.11
EINECS: 231-867-5
Product Categories: Hematology and Histology;Histology Special Stains;Chemical Synthesis;Inorganic Salts;Materials Science;Metal and Ceramic Science;Sodium;Sodium Salts;Synthetic Reagents;Inorganics;Essential Chemicals;Reagent Plus;Routine Reagents;DetergentsSynthetic Reagents;Core Bioreagents;Research Essentials;Reference Material Potassium iodateTitration;Concentrates (e.g. FIXANAL);Salt Concentrates;S - ZSynthetic Reagents;Salts;Sodium Salts;SodiumMetal and Ceramic Science;Inorganic Salts;Synthetic Reagents;Reference Material Potassium iodateVolumetric Solutions;Salt solutionsSynthetic Reagents;By Reference Material;S - ZTitration;Salt Solutions;Solution containers (VOLPAC);Volumetric Solutions
Mol File: 7772-98-7.mol

Sodium thiosulfate Chemical Properties
Melting point  48°C
Boiling point  100°C
density  1.01 g/mL at 25 °C
storage temp.  2-8°C
solubility  Immiscible with alcohol.
form  Solid
Specific Gravity 1.667
color  White
PH 6.0-8.5 (25℃, 50mg/mL in H2O)
Water Solubility  Soluble in water. Insoluble in alcohol.
Sensitive  Hygroscopic
Merck  14,8694
Stability: Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury.
InChIKey AKHNMLFCWUSKQB-UHFFFAOYSA-L
CAS DataBase Reference 7772-98-7(CAS DataBase Reference)
EPA Substance Registry System Sodium thiosulfate (7772-98-7)
Safety Information
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25-23-36-26
WGK Germany  1
RTECS  XN6476000
F  3
TSCA  Yes
HS Code  28323000
Hazardous Substances Data 7772-98-7(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 5000 mg/kg

Sodium thiosulfate Usage And Synthesis
Description Sodium thiosulfate is a commonly used chemical material, as the fixing agent in photography, film and printing plate-making industry, as a reducing agent used in tanning. It is used as a bleaching agent for removing residual and a mordant in the paper and textile industries, as antidotes of cyanide poisoning in medicine, as dechlorination agent and fungicides of drinking water and wastewater in water treatment, as a copper corrosion inhibitor of circulating cooling water and a deoxidizer of boiler water systems. It is also used for Cyanide wastewater treatment. Soda ash and sulfur are generally used as raw materials in industry, soda ash reacts with sulfur dioxide produced by the combustion of sulfur to produce sodium sulfite, then add sulfur for boiling reactions, and then filter, bleach, concentrate and crystallize, etc, can obtain sodium thiosulfate pentahydrate. Other production waste containing sodium sulfide, sodium sulfite, sulfur and sodium hydroxide can also be used, after appropriate treatment to get the product.