For procurement specialists and R&D chemists alike, selecting the correct grade of a chemical intermediate is a critical decision that can significantly impact product performance and manufacturing costs. Acrylic acid (CAS 79-10-7) is no exception, with two primary purity grades commonly available: 99.5% and 99.9% (often referred to as Glacial Acrylic Acid). Understanding the nuances between these grades is essential when you need to buy acrylic acid.

The fundamental difference lies in the residual impurity levels. Standard industrial grade acrylic acid typically boasts a purity of 99.5%. This grade is highly effective and widely used in a broad spectrum of applications, including the manufacturing of acrylic resins for coatings, many types of adhesives, and textile auxiliaries. For formulators who require a robust and cost-effective monomer, the 99.5% grade often provides the necessary performance characteristics.

On the other hand, 99.9% Glacial Acrylic Acid contains even lower levels of impurities, particularly water. The term 'glacial' refers to its tendency to freeze or crystallize around room temperature (its melting point is approximately 13°C), resembling glacial ice. This higher purity is often critical for applications where even trace impurities can adversely affect polymerization or the final product's properties. The most prominent example is its use as a feedstock for superabsorbent polymers (SAPs). The polymerization process for SAPs is highly sensitive to water content and other impurities, making the 99.9% grade the preferred choice to ensure optimal absorption capacity and performance of the final polymer.

When you purchase acrylic acid, consider your application's specific demands. If you are involved in the production of paints, standard adhesives, or general-purpose resins, the 99.5% grade is likely sufficient and more economical. However, for specialized applications such as high-performance SAPs, certain polymer electrolytes, or advanced material synthesis where stringent purity is a prerequisite, the 99.9% Glacial Acrylic Acid is the superior option.

As a leading acrylic acid manufacturer and supplier, we offer both 99.5% and 99.9% grades to cater to the diverse needs of our clients. We understand that sourcing the right chemical can be complex, which is why we provide detailed specifications and technical support. When inquiring about acrylic acid price, be sure to specify the required purity grade to ensure you receive accurate quotations. Choosing the correct purity grade from a reliable CAS 79-10-7 supplier ensures your manufacturing processes run smoothly and your end products meet the highest standards.