1. Metal Treatment

• Metal Cleaning: It is used in metal cleaning formulations for removing rust, scaling, and other surface contaminants from metals without causing excessive corrosion.
• Surface Preparation: It is applied in surface treatment processes before coating or painting to ensure better adhesion and finish.

2. Pharmaceuticals

• Catalyst in Synthesis: Methane sulfonic acid is used as a catalyst in the synthesis of various pharmaceutical compounds due to its strong acid strength and stability. It facilitates esterification, alkylation, and condensation reactions in drug development.
• pH Adjuster: It is also used as a pH adjuster in some pharmaceutical formulations to enhance the stability and solubility of active ingredients.

3. Chemical Synthesis

• Catalyst for Polymerization: Methane sulfonic acid is employed as a catalyst in polymerization reactions, especially for the production of resins, adhesives, and coatings. Its high catalytic efficiency improves the reaction rate and product yield.
• Acidic Cleaning Agent: It is used as an effective acidic cleaning agent in industrial cleaning applications, such as removing rust, scale, and oxides from metal surfaces without producing toxic fumes.

4. Construction

• Concrete Additive: Methanesulfonic acid can be used in concrete additives to enhance strength and durability, especially in conditions where faster setting times are required.

5. Personal Care

• pH Adjuster: In cosmetics and personal care products, Methane sulfonic acid is used as a pH adjuster to ensure the stability and effectiveness of formulations such as shampoos, conditioners, and creams.
• Exfoliant: It is also used as a mild exfoliant in skin care products to help remove dead skin cells and promote a clearer, smoother complexion.

6. Agrochemicals

• Herbicide Synthesis: Methanesulfonic acid is involved in the production of certain herbicides, particularly sulfonylurea-based herbicides that are used for weed control in agricultural applications.