Sodium Acetate Buffer pH 4

Sodium acetate buffer is an aqueous buffer solution of sodium acetate (CH₃COONa) and acetic acid (CH₃COOH), a conjugate acid–base pair. Acetic acid has a pKa of about 4.76 at 25 °C. Acetate buffers are commonly used to control pH in the mildly acidic range in analytical procedures, including iodometric and amperometric titration methods for residual chlorine in water, and in sample and reagent preparation.

This product is buffered to pH 4. Available from Rexall Solutions in a 20 L container.

Refer to the Safety Data Sheet (SDS) for hazard, handling and storage information.