A reddish-purple crystalline compound used in solution in photographic processing and as a mordant in dyeing.
Chemical formula: K₂SO₄Cr₂(SO₄)₃.24H₂O
Example sentencesExamples
- What if you use the slides for immunostaining and you have a nice underlayer of chrome alum below the section?
- Feel free to increase the concentration of chrome alum, but be aware that the solution becomes deeply colored.
- In this experiment you will prepare chrome alum KCr 2.12H 2 O by the reduction of potassium dichromate with ethanol.
- Mixing gelatin, chrome alum and water makes the gelatin subbing solution.
- For those that have some interest in the chemistry of this formula, chrome alum is a double sulphate of potassium and chromium.