タイトルまたは説明

Chromium acid liquid is laboratory commonly used cleaning both acidic and oxidation resistance and can remove experiment instrument of the outer wall of the wall and the dirt and undissolved substances. Usually this lotion by potessium dichromate sulfuric acid potassium join get, but hexavalent chromium is harmful to the environment, strongly acidic environment sometimes also can make instrument damaged, so now chromium acid liquid application decreasing. Chromium plating chromic acid is the intermediate coating, also used in certain glazes and colored glass production.