Description
Chemical Name:Sodium thiosulfate pentahydrate
Cas No:10102-17-7
Synonyms:Sodium thiosulfate pentahydrate ACS reagent;
Molecular Weight:248.18
Molecular Formula:H10Na2O8S2
Molecular Structure:
Specification:
Items | Specifications |
Melting point | 48.5 °C |
Boiling point | 100 °C |
Fp | / |
Logp | -0.428 |
pH | 6.0-7.5 |
Density | -0.428 |
Fe | ≤0.001% |
Water solubility | 680 g/L |
Function:
Complexation: The thiosulfate ion in sodium thiosulfate pentahydrate has a strong complexation ability and can form stable complexes with a variety of metal ions.
Reducibility: The sulfur element is in an intermediate valence state and has obvious reducing properties. It can undergo redox reactions with many oxidizing substances.
Solubility: It has good solubility in water and can form a stable aqueous solution, which is convenient for use as a reactant or solvent in various reactions and applications.
Application:
Antidote: It can be used for detoxification of poisoning such as cyanide, arsenic, mercury, and lead. It can combine with these toxic substances to form non-toxic or low-toxic substances, which are excreted from the body through urine.
Reducing agent: In chemical production, it is used to reduce some oxidizing substances. For example, in dye synthesis, some oxygen-containing compounds can be reduced to the required intermediates.
Antioxidant: It can be used as a food additive to prevent the oxidation of oils, vitamins and other ingredients in food, extend the shelf life of food, and maintain the color and flavor of food.
Wastewater treatment: It is used to treat wastewater containing heavy metal ions, converting heavy metal ions into insoluble complexes through complexation, thereby reducing the content of heavy metals in wastewater and meeting emission standards.
