Potassium chlorate is a compound containing potassium, chlorine and oxygen atoms, with the molecular formula KClO 3. In its pure form, it is a white crystalline substance. It is the most common chlorate in industrial use. It is used.
Bluing agents are the result of a simple chemical process. The main ingredient in bluing agent is a finely powdered iron that appears to be a very bright blue. This iron powder is colloquially referred to as Prussian blue, and formally called ferric hexacyanoferrate.
Bluing (steel) - Hot bluing. 1  Bluing may be applied, for example, by immersing the steel parts to be blued in a solution of potassium nitrate, sodium hydroxide, and water heated to the boiling point, 275 Â°F to 310 Â°F (135 Â°C to 154 Â°C) depending on the recipe. 2  Rust bluing was developed between hot and cold bluing processes.