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CAS NO.7772-98-7
Sodium thiosulfate Basic information |
Product Name: | Sodium thiosulfate |
Synonyms: | DECHLORINATING SOLUTION;HYPO;'HYPO';BETZ 0235;ANTICHLOR;SODIUM HYPOSULFITE;SODIUM THIOSULFATE;SODIUM THIOSULFATE, 2.00 N |
CAS: | 7772-98-7 |
MF: | Na2O3S2 |
MW: | 158.11 |
EINECS: | 231-867-5 |
Product Categories: | 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;Hematology and Histology;Histology Special Stains;Chemical Synthesis;Inorganic Salts;Materials Science;Metal and Ceramic Science;Sodium;Sodium Salts;Synthetic Reagents |
Mol File: | 7772-98-7.mol |
Sodium thiosulfate Chemical Properties |
mp | 48°C |
bp | 100°C |
density | 1.01 g/mL at 25 °C |
storage temp. | 2-8°C |
Sensitive | Hygroscopic |
Merck | 14,8694 |
Stability: | Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
CAS DataBase Reference | 7772-98-7(CAS DataBase Reference) |
EPA Substance Registry System | Thiosulfuric acid (H2S2O3), disodium salt(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 |
Hazardous Substances Data | 7772-98-7(Hazardous Substances Data) |
MSDS Information |
Provider | Language |
---|---|
Sodium hyposulfite | English |
ACROS | English |
SigmaAldrich | English |
ALFA | English |
Sodium thiosulfate Usage And Synthesis |
Chemical Properties | White powder |
Usage | Sodium Thiosulfate is used primarily as a medicament against cyanide poisoning, able to convert cyanide into thiocyanate, a reaction which is catalyzed by the enzyme Rhodanese. Antioxidant. |
Sodium thiosulfate Preparation Products And Raw materials |
Sodium Thiosulfate
1: Colorless transparent crystal
2:Content:98.5%min or 99%min
3.industrial grade/photo grade
1.Characters:
Sodium thiosulfate, also known as thiosulfate, which is monoclinic white crystalline powder, specific gravity 1.667, soluble in water, insoluble in alcohol, is heated in air decomposed into sodium oxide and sulfur dioxide. Burned in pure oxygen is generated sodium sulfate, sodium sulfide and sulfur.
2.Specification:
sodium thiosulfate % |
≥99% |
Water insoluble%
|
≤0.01% |
Sulphides(as S) %
|
≤0.001% |
Fe%
|
≤0.001% |
Size(grain/g) %
|
≤50grain/g |
Application:
1.Mainly used in photographic industry for fixative.
2.Dichromate tanning when a reducing agent, nitrogen exhaust neutralizer, mordant, straw and hair bleach, and dechlorination of pulp bleaching agent.
3.Also used for tetraethyl lead, dyes intermediates manufacturing and silver ore raised.
4.In addition, for the chemical industry, electroplating industry, reducing agent, water purifying agent works.
5.In the textile industry for bleaching cotton after dechlorination agent, sulfur dyeing wool fabric dye, indigo dye anti-white agents, pulp dechlorination agent, the pharmaceutical industry as detergents, disinfectants and bleaching agents.
Storage
Should be stored in a cool and dry warehouse. Dark, sealed, transport should avoid exposure, humidity, rain. Not with acid and oxidant were mixed reservoir operation. Containers must be sealed to prevent moisture melt. Such as packaging moisture, indicating the contents from the deliquescence effect has to be packaged separately stacked and drying. Can not be stored in the open air, on the wet packing to grasp handle. Sand when fire fighting water.