Hypo(Anhydrous)

Product Specifications

These specifications confirm hypo anhydrous (sodium thiosulfate) adheres to pharmacopeial and industrial standards, with quality assured through analytical testing.

Key Applications

Hypo anhydrous's reducing properties and compatibility with aqueous systems make it invaluable in:

• Photography: Acts as a fixer to remove unexposed silver halides from film and prints, preventing image fading.

  
  

• Water Treatment: Neutralizes chlorine and chloramines in drinking water, wastewater, and swimming pools for safe discharge.

  
  

• Medical and Pharmaceutical: Serves as an antidote for cyanide poisoning by forming non-toxic thiocyanate; used in topical treatments for calciphylaxis.

  
  

• Mining and Extraction: Facilitates gold and silver recovery by dissolving complexed metals in leaching processes.

  
  

• Dyeing and Bleaching: Converts dyes to soluble leuco forms in textile processing; bleaches wool and paper without damage.

  
  

• Analytical Chemistry: Employed as a titrant in iodometric determinations and as a reagent in laboratory tests.

  
  

Its eco-friendly profile supports sustainable practices, with minimal environmental persistence when properly managed.

Safety and Handling Guidelines

Sodium thiosulfate anhydrous is generally non-toxic and non-flammable, but may cause mild irritation to eyes, skin, or respiratory tract upon direct contact or inhalation of dust. Essential measures include:

• Wear protective gloves, safety goggles, and dust masks during handling.

• Use in well-ventilated areas; avoid ingestion or inhalation.

• In case of eye contact: Rinse immediately with plenty of water for 15 minutes and consult a physician.

• Stability Note: Decomposes in acidic conditions to release sulfur dioxide gas; keep away from acids and strong oxidizers.

• Environmental Consideration: Biodegradable and low aquatic toxicity; dispose according to local regulations.

  
  

Safety Data Sheets (SDS) are available upon request for regulatory compliance.

Frequently Asked Questions (FAQs)

What is the main function of HYPO(sodium thiosulfate) anhydrous CAS 7772-98-7 in photography?

Sodium thiosulfate anhydrous is used as a fixing agent in photographic development, where it dissolves unexposed silver halides to stabilize images and prevent further light sensitivity.

Is HYPO(sodium thiosulfate) anhydrous soluble in water?

Yes, it exhibits high solubility in water, dissolving over 200 grams per liter at 20°C, which makes it suitable for aqueous solutions in water treatment and medical preparations.

What are the storage guidelines for HYPO(sodium thiosulfate) anhydrous?

Keep in a dry, cool environment (below 30°C) in airtight containers to prevent moisture absorption and caking. It has a shelf life of 2-3 years under ideal conditions.

Are there any regulatory limits for HYPO(sodium thiosulfate) anhydrous in food applications?

Its use in food is restricted to 0.1% as a processing aid, primarily for dechlorination; it is not intended for direct consumption and must comply with FDA or equivalent standards.

How does HYPO(sodium thiosulfate) anhydrous act as a cyanide antidote?

It converts toxic cyanide ions into thiocyanate, which is safely excreted by the kidneys, providing rapid detoxification in cases of acute poisoning.

What purity levels are available for your HYPO(sodium thiosulfate) anhydrous?

We offer ≥99% purity with certificates of analysis (COA) for each batch, suitable for both industrial and pharmaceutical-grade requirements.

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