Oil Blue 35
is a blue
anthraquinone dye used for colouring alcoholic and hydrocarbon based solvents, including oils, fats, and waxes. It is used also in
lacquer
Lacquer is a type of hard and usually shiny coating or finish applied to materials such as wood or metal. It is most often made from resin extracted from trees and waxes and has been in use since antiquity.
Asian lacquerware, which may be c ...
s 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. ...
s. In some countries, it is used as a
fuel dye. It is also used in some blue
colored smoke
Colored smoke is a kind of smoke created by an particulate, 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 ...
formulations. In microscopy, it is used as a
staining
Staining is a technique used to enhance contrast in samples, generally at the Microscope, microscopic level. Stains and dyes are frequently used in histology (microscopic study of biological tissue (biology), tissues), in cytology (microscopic ...
dye. When exposed to 5%
hydrochloric acid
Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungency, pungent smell. It is classified as a acid strength, strong acid. It is ...
solution, it becomes dirty green.
See also
*
Oil Blue A
References
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Staining dyes
Sudan dyes
Fuel dyes
Anthraquinone dyes
Aromatic amines
Butyl compounds