Sodium Thiosulphate (CAS 7772-98-7) Market

Overview

Sodium thiosulphate, a colorless crystalline compound with the chemical formula Na₂S₂O₃, is widely used across various industries due to its reducing, dechlorinating, and chelating properties. It plays a key role in medical treatments, photographic processing, water treatment, gold extraction, and chemical manufacturing. Its versatility and non-toxic nature make it suitable for both industrial and pharmaceutical applications. As environmental regulations tighten and industries seek more efficient and less harmful chemicals, the global sodium thiosulphate market is witnessing steady growth.

Market Size and Growth

The global sodium thiosulphate market was valued at around USD 120 million in 2024, and it is projected to grow at a CAGR of 5.6% from 2025 to 2030. Increasing demand in pharmaceutical applications, especially as an antidote for cyanide poisoning and in cancer treatment regimens, is a key growth driver. Moreover, its expanding use in gold leaching as an alternative to cyanide is gaining traction in environmentally conscious mining operations.

Key Drivers

1. Expanding Pharmaceutical Applications
   Sodium thiosulphate is used in combination therapies for treating calciphylaxis and cyanide poisoning. It is also being explored for its potential to reduce the toxic side effects of chemotherapy agents like cisplatin. The growing global healthcare industry is boosting demand for high-purity pharmaceutical-grade sodium thiosulphate.
2. Environmental and Water Treatment Uses
   The compound is used to dechlorinate water in municipal and industrial water treatment facilities. Rising investments in water purification and wastewater management, especially in developing economies, are contributing to market growth.
3. Shift in Gold Mining Practices
   As cyanide use in gold extraction faces increasing environmental scrutiny, sodium thiosulphate is emerging as a safer and more sustainable alternative. This trend is expected to drive long-term demand in the mining sector.
4. Photography and Analytical Chemistry
   Though traditional film photography has declined, sodium thiosulphate is still used in certain photographic processes, laboratories, and chemical analysis due to its ability to dissolve silver halides.

Restraints

1. Availability of Substitutes
   In some applications, other chemicals like sodium metabisulfite or sulfur dioxide may be used instead, which can limit the growth potential of sodium thiosulphate.
2. Regulatory Challenges
   In pharmaceutical and food applications, strict regulations concerning purity and safety require adherence to high manufacturing standards, which can increase production costs.
3. Declining Demand in Traditional Photography
   The continued decline of the analog photography market has reduced one of sodium thiosulphate’s traditional use cases, slightly offsetting gains in other sectors.

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Segmentation

• By Type:
• Pharmaceutical Grade
• Industrial Grade
• Photographic Grade
• By Application:
• Pharmaceuticals
• Water Treatment
• Gold Mining
• Photographic Processing
• Textiles and Chemicals
• By End-Use Industry:
• Healthcare and Pharmaceuticals
• Mining and Metallurgy
• Water and Wastewater Treatment
• Photography and Imaging
• Chemical Manufacturing

Regional Insights

• North America: A significant share is driven by pharmaceutical usage and mining operations, particularly in the U.S. The presence of stringent water quality regulations also supports market growth.
• Europe: Focused on healthcare applications and water purification. Germany, the UK, and France are key contributors due to robust industrial infrastructure.
• Asia-Pacific: The largest and fastest-growing region. China and India are major consumers owing to rising demand in the textile, mining, and water treatment industries. Cost-effective manufacturing also positions the region as a leading supplier.
• Latin America and Middle East Africa: Growth is moderate but rising, especially in gold mining and water treatment applications.

Opportunities

• Green Mining Solutions: Growing environmental concerns are creating opportunities for sodium thiosulphate in eco-friendly gold extraction processes.
• Healthcare Expansion in Emerging Markets: Increasing healthcare investments and access in countries like Brazil, India, and Indonesia are boosting pharmaceutical-grade product demand.
• Research into New Medical Applications: Ongoing studies around sodium thiosulphate’s potential in treating hearing loss and oxidative stress-related conditions present future growth prospects.

Key Companies

Prominent manufacturers in the sodium thiosulphate market include:

• Alfa Aesar
• Anish Chemicals
• Esseco Group
• GFS Chemicals Inc.
• Muby Chemicals
• Merck KGaA
• Rongxin Chemical
• Sichuan Xinxing Chemical
• Loba Chemie
• Tokyo Chemical Industry Co., Ltd.

These players are focusing on product purity, RD for new uses, and expanding into emerging markets.

Conclusion

The sodium thiosulphate market continues to expand steadily, supported by its wide-ranging industrial and pharmaceutical applications. While legacy uses in photography have declined, its rising importance in water treatment, healthcare, and environmentally friendly mining underscores its enduring value. As industries prioritize safety, sustainability, and regulatory compliance, sodium thiosulphate is set to remain a key chemical across sectors.

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