Global Sodium Phosphite Market Strategic Research Report

Scope of the Report

The global Sodium Phosphite market size is predicted to grow from US$ 404 million in 2025 to US$ 611 million in 2032; it is expected to grow at a CAGR of 6.1% from 2026 to 2032.

Sodium phosphite is an inorganic phosphorus salt (typically Na₂HPO₃ or NaH₂PO₃, depending on hydration and formulation) used primarily as a reducing agent, buffering component, corrosion inhibitor, and as an intermediate or formulated ingredient in agrochemicals (fungicides and plant health products), water treatment chemicals, metal surface treatment, and specialty chemical formulations. Its supply chain begins upstream with elemental phosphorus or phosphorus trichloride derived from phosphate rock, which is reacted to produce phosphorous acid (H₃PO₃); this intermediate is then neutralized with sodium hydroxide or sodium carbonate to form sodium phosphite, followed by concentration, crystallization, drying, and quality grading. Midstream producers are integrated inorganic and specialty chemical manufacturers that control phosphorous acid synthesis and salt conversion, ensuring purity and consistency for technical, industrial, or agrochemical grades. Downstream, sodium phosphite is sold either as a raw material to formulators (crop protection, water treatment, and industrial chemical blenders) or directly to end users in agriculture, cooling water systems, metal finishing, and specialty manufacturing, with distribution handled through regional chemical distributors and direct contracts, and logistics typically involving bulk bags, drums, or solution form depending on application requirements. In 2025, global sodium phosphite production reached approximately 380,000 tons against an estimated installed global production capacity of about 460,000 tons per year, with products sold at an average unit price of roughly USD 820–1,450 per ton, while leading manufacturers typically achieved gross margins of around 32%.

Global key Sodium Phosphite players cover Arkema (France), Solvay (Belgium), Nippon Chemical (Japan), Xingfa Chemicals (China), Kangxiang Industrial (China), etc.

Key Questions Addressed in this Report

What is the 10-year outlook for the global Sodium Phosphite market?

What factors are driving Sodium Phosphite market growth, globally and by region?

Which technologies are poised for the fastest growth by market and region?

How do Sodium Phosphite market opportunities vary by end market size?

How does Sodium Phosphite break out by Type, by Application?

This report presents a comprehensive overview of the global Sodium Phosphite market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Monosodium Phosphite (NaH₂PO₃)
• Disodium Phosphite (Na₂HPO₃)

Segment by Physical Form

• Crystalline Powder
• Granular Solid
• Flake
• Aqueous Solution

Segment by Application

• Agrochemical
• Pulp & Paper
• Water Treatment
• Metal Surface Finishing
• Electronic Manufacturing
• Industrial Processing
• Others

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Sodium Phosphite market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Agrochemical, Pulp & Paper, Water Treatment evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact