Chemical Type(s)
Location(s)
- Chicago
Description
Sodium Thiosulfate Anhydrous (Na₂S₂O₃)
Sodium Thiosulfate Anhydrous is the dehydrated form of sodium thiosulfate, a versatile chemical compound with a wide range of applications. It’s a white, crystalline powder that offers greater stability and less caking compared to the pentahydrate form, making it a preferred choice when minimizing water content is crucial. While anhydrous, it readily dissolves in water to form the active thiosulfate ion, making it functionally equivalent to the pentahydrate in solution.
Key Uses:
Photography: A key component in photographic fixing, dissolving unexposed silver halide crystals from film and photographic paper to create permanent images. The anhydrous form is often preferred in photographic formulations where minimizing water is essential.
Water Treatment: Used for dechlorinating water in various settings, from tap water treatment to industrial wastewater management. It neutralizes the harmful effects of chlorine and is also used to remove excess iodine in certain water purification processes. The anhydrous form provides a higher concentration of active ingredient per unit weight.
Medicine: Used as an antidote for cyanide poisoning and as a topical antifungal agent. It is sometimes used in specific medical preparations.
Analytical Chemistry: A valuable reagent in analytical chemistry, especially in iodometric titrations used to determine the concentration of various substances. Its anhydrous nature ensures accurate and consistent results due to its stable composition.
Industrial Applications: Used in a variety of industrial processes, including:
- Textile Industry: Employed as a reducing agent in some dyeing and finishing processes.
- Leather Industry: Used in the leather tanning process.
- Gold Extraction: Used in certain gold extraction methods.
Packaging: Available in various packaging options to suit your needs, including bags and supersacks