What are the different grades of acrylic acid (CAS 79-10-7)?

CAS 79-10-7 Acrylic acid is the simplest unsaturated carboxylic acid, consisting of a vinyl group and a carboxyl group. Pure acrylic acid is a colorless, clear liquid with a characteristic pungent odor. It is miscible with water, alcohol, ether and chloroform, and is prepared from propylene obtained from an oil refinery. Most of them are used to make acrylates such as methylacrylate, ethyl acrylate, butyl acrylate and hydroxyethyl acrylate.

What are the different grades of acrylic acid?

Acrylic acid, with the chemical formula C₃H₄O₂, is categorized into three main grades based on purity and impurity control requirements:

• Industrial Grade (Purity ≥99%): Primarily used in the production of coatings and adhesives. It typically has an acid value of ≤0.5 mg KOH/g and color (APHA) ≤20.
• Pharmaceutical Grade (Purity ≥99.9%): Applied in drug synthesis and medical devices, with heavy metal content controlled to <10 ppm.
• Electronic Grade (Purity ≥99.99%): Used in semiconductor cleaning solutions, with critical specifications such as moisture ≤50 ppm and particles ≤5 per mL.

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