Black 7 dye

Methyl ethyl ketone (MEK) is a colorless, flammable liquid organic compound with the chemical formula C4H8O. It is a ketone, which means it contains a carbonyl group (C=O) bonded to two carbon atoms. MEK has a sweet, pungent odor and is commonly used as a solvent in various industrial applications such as coatings, adhesives, and printing inks. It can also be used as a chemical intermediate in the production of other chemicals. MEK is highly volatile and can pose health hazards if not handled properly.

n-Hexane is a straight-chain alkane with the chemical formula C6H14. It is a colorless, flammable liquid with a slight odor that is commonly used as a solvent and as a raw material in the production of gasoline. In its pure form, n-hexane is highly volatile and can be easily ignited, so it is important to handle it with care.