One of the mysteries of the English language finally explained.
A reddish-purple crystalline compound used in solution in photographic processing and as a mordant in dyeing.
Chemical formula: K₂SO₄Cr₂(SO₄)₃.24H₂O
- ‘What if you use the slides for immunostaining and you have a nice underlayer of chrome alum below the section?’
- ‘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.’
- ‘In this experiment you will prepare chrome alum KCr 2.12H 2 O by the reduction of potassium dichromate with ethanol.’
- ‘Feel free to increase the concentration of chrome alum, but be aware that the solution becomes deeply colored.’
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