Oil Blue 35
is a blue
anthraquinone dye
Anthraquinone dyes are an abundant group of dyes comprising a anthraquinone unit as the shared structural element. Anthraquinone itself is colourless, but red to blue dyes are obtained by introducing electron donor groups such as hydroxy or amino ...
used for colouring alcoholic and hydrocarbon based solvents, including oils, fats, and waxes. It is used also in
lacquers and
ink
Ink is a gel, sol, or solution that contains at least one colorant, such as a dye or pigment, and is used to color a surface to produce an image, text, or design. Ink is used for drawing or writing with a pen, brush, reed pen, or quill. Thicker ...
s. In some countries, it is used as a
fuel dye
Fuel dyes are dyes added to fuels, as in some countries it is required by law to dye a low-tax fuel to deter its use in applications intended for higher-taxed ones. Untaxed fuels are referred to as "dyed", while taxed ones are called "clear" or "w ...
. It is also used in some blue
colored smoke
Colored smoke is a kind of smoke created by an aerosol of small particles of a suitable pigment or dye.
Colored smoke can be used for smoke signals, often in a military context. It can be produced by smoke grenades, or by various other pyrote ...
formulations. In microscopy, it is used as a
staining dye. When exposed to 5%
hydrochloric acid
Hydrochloric acid, also known as muriatic acid, is an aqueous solution of hydrogen chloride. It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid
Acid strength is the tendency of an acid, symbol ...
solution, it becomes dirty green.
See also
*
Oil Blue A
Oil Blue A is a blue anthraquinone dye used for colouring certain plastics such as polystyrene and acrylic resins, as well as other materials such as petroleum
Petroleum, also known as crude oil, or simply oil, is a naturally occurring yell ...
References
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Staining dyes
Sudan dyes
Fuel dyes
Anthraquinone dyes
Aromatic amines