Product Short Description: Potassium Chromate is a yellowish, crystalline, inorganic compound Potassium chromate is a strong oxidizing agent. Product Description: Potassium Chromate supreme supplier, manufacturers and exporters. Potassium Chromate is a yellowish, crystalline, inorganic compound that emits toxic chromium fumes upon heating. Potassium chromate is highly corrosive and is a strong oxidizing agent.