Multiple choice

Which of the following is used in lacquers and inks?

  1. Sudan Blue II

  2. Parietin

  3. Quinizarine Green SS

  4. Vat Yellow 4

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A Correct answer
Explanation

Sudan Blue II is used as a dye for alcoholic, ester, and hydrocarbon based solvents, oils, fats, and waxes. It is used also in lacquers and inks. In some countries, it is used as a fuel dye. It is also used in some blue coloured smoke formulations. In microscopy, it is used as a staining dye.

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