Aluminium Sulphate Market Size, Share, Growth, Trends, and Global Industry Analysis: By Form (Solid, Liquid, Powder), By application (Water Treatment, Pulp & Paper, Textile, Pharmaceuticals, Agriculture, Food Processing, Others), By End User (Municipal, Industrial, Commercial) and Region Forecast 2020-2031

Aluminium Sulphate Market size was valued at US$ 1,068.3 million in 2024 and is expected to reach US$ 1,473.4 million by 2031, growing at a significant CAGR of 4.7% from 2025-2031. The market refers to the global industry involved in the production, distribution, and utilization of aluminium sulphate Al?(SO?)?), an inorganic chemical compound commonly used as a coagulating agent in water and wastewater treatment processes. It is also used in paper manufacturing, textile dyeing, and as a mordant in various industrial applications. The market includes various forms such as solid, liquid, and powder, and serves end-user industries including municipal water treatment, pulp and paper, textiles, and agriculture.

The market is witnessing steady growth due to increasing demand for clean water and stringent environmental regulations promoting advanced water treatment practices. The rising population and rapid urbanization in emerging economies are boosting the need for effective wastewater treatment solutions, thereby driving the demand for aluminium sulphate. Moreover, growth in the paper and pulp industry, along with applications in agriculture and pharmaceuticals, is expected to support market expansion. However, environmental concerns regarding aluminium discharge and the availability of alternative coagulants may pose challenges to the market’s long-term growth. 

Facts & Figures

• In fact, over 70% of aluminium sulphate produced globally is used for water and wastewater treatment, highlighting its critical role in public utility services.
• A typical municipal water treatment plant consumes approximately 15–30 mg/L of aluminium sulphate per liter of water, depending on the raw water quality.
• China is the world’s largest producer of aluminium sulphate, accounting for nearly 40% of global production, driven by high domestic demand and low-cost manufacturing.
• In the pulp and paper industry, aluminium sulphate is used at a rate of about 10–25 kg per metric ton of paper, depending on the grade and paper type.
• Aluminium sulphate has a solubility of approximately 36.4 g/100 mL of water at 20°C, making it highly efficient in aqueous applications.

Key Developments:

• In April 2024, Chemtrade acquired a specialty chemical plant in North America, boosting its aluminium sulphate production and supply chain capabilities. This acquisition enables Chemtrade to expand its market reach and ensure stable product availability in key industrial and municipal regions

Aluminium Sulphate Market Segmentation:

Based on the form:

• Solid
• Liquid
• Powder

Based on form, the solid segment holds the leading position in the market. Solid aluminium sulphate is widely preferred due to its longer shelf life, ease of storage, and cost-effectiveness in bulk transportation. It is extensively used in municipal water treatment facilities and the pulp and paper industry, particularly in developing economies where large-scale water purification projects are ongoing. A key driver for this segment is the high demand from public utilities that rely on solid form for consistent dosing and reduced handling complexities. Its availability in various grades and compatibility with standard dosing systems further support its dominance.

Based on the application:

• Water Treatment
• Pulp & Paper
• Textile
• Pharmaceuticals
• Agriculture
• Food Processing
• Others

Based on application, water treatment emerges as the leading segment in the market. This dominance is driven by the compound’s essential role as a coagulant in both drinking water purification and wastewater treatment processes. Governments across developing and developed regions are investing heavily in water infrastructure to address rising concerns over water pollution and scarcity. Aluminium sulphate effectively removes impurities, making it a preferred choice for municipalities and industrial facilities alike. Its cost efficiency, wide availability, and regulatory acceptance further support its extensive use in public water treatment programs, cementing the segment’s top position in the global market.

Based on the end user:

• Municipal
• Industrial
• Commercial

Based on end-user segmentation, the municipal segment holds the largest share in the market. This is primarily due to the widespread use of aluminium sulphate in public water treatment plants for drinking water purification and sewage treatment. Municipal authorities across the globe, especially in densely populated and rapidly urbanizing regions, are prioritizing clean water access and compliance with environmental regulations. Aluminium sulphate serves as a cost-effective and efficient coagulant, helping municipalities meet water quality standards. Government-led infrastructure development and rising investments in urban water management systems continue to drive demand in this segment, ensuring its market leadership.