How to Make a Chromic Acid Cleaning Solution
Chromic acid is not a popular cleaning solution, because chromium is classified as a carcinogen. It is still used occasionally despite the careful handling that it requires because it is effective at removing cloudy stains from glass that no other cleaner does.
Using extreme caution, it is possible to make a chromic acid cleaning solution at home. The ingredients aren't available at your local supermarket, but you can purchase them online.
Things You Will Need
- Glass pan
- Liter glass beaker
- Rubber gloves
- 20 g powdered sodium dichromate
- Glass stirring rod
- 300 ml concentrated sulfuric acid
- Glass-stoppered bottle
Chromic acid is extremely corrosive. Always use glass containers when making and storing chromic acid solution.
Chromic acid is highly acidic. Always handle it with caution to prevent skin burns.
Place a clean, glass liter beaker in a glass pan to prevent damage from accidental spills.
Wearing rubber gloves, put 20 g of powdered sodium dichromate into the liter glass beaker.
Mix in a small amount of water to form a paste, and stir thoroughly with a glass stirring rod.
Continue to stir the mixture while slowly adding 300 ml of concentrated sulfuric acid to the beaker.
Carefully pour the solution from the beaker into a glass bottle with a stopper on top.
The Drip Cap
- Chromic acid is not a popular cleaning solution, because chromium is classified as a carcinogen.
- Continue to stir the mixture while slowly adding 300 ml of concentrated sulfuric acid to the beaker.