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Sodium thiosulfate, also known as Tiosulfato de sodio pentahidratado, is a commonly used chemical raw material.
Sodium Thiosulfate is a thiosulfate, colorless, transparent monoclinic crystal. It is quickly soluble in water, takes in heat after liquifying in water (cooling down to remove lower warmth), the aqueous service is weakly alkaline, easily soluble in ammonia water, however insoluble in alcohol.
Sodium thiosulfate is a sulfur donor with active sulfur atoms. Through sulfur transferase, it can bind to CN-free or bound to methemoglobin in vivo. It is turned into thiocyanate with little toxicity, which is detoxified by excretion in urine.
As a common chemical raw material, it is used as a fixer in the photographic, film and printing industry.
There are 2 types of Sodium Thiosulfate: Sodium Thiosulfate anhydrous (Na2S2O3) as well as Sodium Thiosulfate pentahydrate (Na2S2O3 5H2O), the latter likewise called soda and also sea waves.
Look Chemical supplies Sodium Thiosulfate to users/customers of Industrial Chemicals, Water Treatment and Pool Chemicals.
Sodium Thiosulfate loses all crystal water at 0 ° C, decomposes when it is more than 100 ° C, and is quickly weathered in warm completely dry air.
Slightly deliquescence in humid and also hot air, conveniently soluble in water and also turpentine, insoluble in ethanol, has solid reducing residential properties, and disintegrates in acidic solution.
Sodium Thiosulfate is conveniently oxidized and carbonized by oxygen and co2 when exposed to air for a long period of time.
Chemical Reaction Display:
Sodium thiosulfate has decreasing buildings and also is a medium-strength lowering agent. As an example, it can be oxidized by chlorine: Na2S2O3 +4 Cl2 +5 WATER=Na2SO4+H2SO4 +8 HCl. This reaction is used in the textile and also paper industry, and sodium thiosulfate is made use of for dechlorination. representative.
For one more example, it can be oxidized to sodium tetrasulfate by iodine: Na2S2O3+I2=Na2S4O6 +2 Nal, which is utilized for quantitative decision of iodine in analytical chemistry. It can additionally be used for tanning leather, extracting silver from ores, etc.
Because there are different oxidation states of sulfur in the sodium thiosulfate particle, it is secure in alkaline medium as well as unsteady in acidic tool. When acidified, a redox response occurs to precipitate sulfur: Na2S2O3+H2SO4=Na2SO4+H2S2O3H2S2O3=H2SO3+SH2SO3 =H2O+S02.
Thiosulfate ions are intricate as well as can form stable complicateds with specific steel ions. +NaBr, so Haibo is commonly used as a repairing remedy for digital photography.
It can be acquired by co-cooking with sodium sulfite as well as sulfur, filtering, crystallizing and evaporating.
Agricultural and Pharmaceutical Uses:
Used as an Antidote
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