Sodium thiosulfate

Sodium thiosulfate, also known as sodium hyposulfite, is a chemical compound with the formula Na₂S₂O₃, commonly found in the form of pentahydrate, which is white or completely colorless. The application of Sodium thiosulfate is in mining, water and wastewater treatment, analytical chemistry, and also medical uses. Shanghai Chemex is one of the most reputable manufacturers of this chemical in the world.

Chemical and Physical Properties:

Sodium thiosulfate is a colorless monoclinic crystal or odorless white crystalline powder that is soluble in water but insoluble in alcohol. The salt of this compound, despite being stable under standard conditions, decomposes at high temperatures and, together with sodium polysulfide, produces sodium sulfate; In the table below some of the chemical and physical properties of this product are mentioned:

Chemical formula	Na2S2O3
Molecular Weight(g/mol)	158.11
Appearance	White crystals
odor	Odorless
Density (g/cm3)	1.667
Melting point (° C)	48.3
Boiling point (° C)	100
Solubility	soluble in water, insoluble in alcohol
Other names	Sodium hyposulfite, Hyposulphite of soda
Chemical Structure Depiction

Sodium Thiosulfate Preparation:

In industry, this compound is obtained from the production of sodium sulfide and sulfur dyes. In laboratories, sodium thiosulfate is prepared by heating a solution of sodium sulfite or by boiling a solution of sodium hydroxide and sulfur.

6 NaOH + 4 S → 2 Na₂S + Na₂S₂O₃ + 3 H₂O

Sodium Thiosulfate Uses:

The application of sodium thiosulfate and other sodium sulfate coatings such as decahydrate and heptahydrate has expanded in various industrial and manufacturing sectors.

• Sodium thiosulfate with various purities is used in glass production, paper making, washing powder production, textile production, plating applications, and photography.
• This compound is used in drug groups as an antidote to cyanide and arsenic poisoning, as well as to treat fungal infections of pityriasis and reticulum.
• Sodium hyposulfite is also used in photography as a fixation drug. In decomposition chemistry, the reaction between thiosulfate and iodine is the basis of iodometric assays.

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Safety Information:

Sodium thiosulfate, because it contains sodium ions, can cause side effects for some people, and it is recommended that you do not use this substance as much as possible. Kidney failure, high blood pressure, and toxemia are caused by pregnancy. It is recommended that if you are taking this type of medicine if it causes you any allergies or irritations, it is recommended that you stop taking this type of medicine and do not use this type of medicine again. The following are some of the factors that can cause you to have one of the above causes if you overuse this type of drug. Therefore, it is recommended that you do not use this type of medicine unnecessarily and excessively, it is recommended that you take the dosage according to your doctor’s instructions.

• Stimulation
• Blurred vision
• Illusion: Like seeing or hearing things that do not really exist.
• Mental changes
• Pain in the joints
• nausea and vomiting

Packing and Storage:

Store in areas, away from heat and moisture and protected from physical damage.