Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email [email protected]

Chemventory Email

The best electrolyte solution to prepare for electrolysis of water is a 1 molar sodium sulfate solution. Sodium sulfate solutions are neutral, and the ions will not be oxidized or reduced by a low-voltage power source. Sodium chloride and hydrochloric acid solutions should be avoided because chlorine gas may be produced at the anode. To prepare 500 mL of a 1 molar sodium sulfate solution, dissolve 161 grams of sodium sulfate, decahydrate (Na2SO4.10H2O) in 400 mL of distilled or deionized water. Once dissolved, dilute the solution to a final volume of 500 mL with distilled or deionized water.