add azo dyes

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• dyes —    Soluble substances that add color to textiles. Dyes are classified into groups that have similar chemical characteristics (e.g. aniline acid and azo). They are incorporated into the fiber by chemical reaction, absorption, or dispersion …   Forensic science glossary

• Fuel dyes — Purple gas redirects here. For the film, see Purple Gas. 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… …   Wikipedia

• Food coloring — spreading on a thin water film in the International Space Station. Food coloring is a substance, liquid or powder, that is added to food and/or drink to change its color. Food coloring is used both in commercial food production and in domestic… …   Wikipedia

• amine — aminic /euh mee nik, euh min ik/, adj. aminity /euh min i tee/, n. /euh meen , am in/, n. Chem. any of a class of compounds derived from ammonia by replacement of one or more hydrogen atoms with organic groups. [1860 65; AM(MONIUM) + INE2] * * *… …   Universalium

• Ilfochrome — (formerly known as Cibachrome) is a dye destruction positive to positive photographic process used for the reproduction of slides on photographic paper. The prints are made on a dimensionally stable polyester base, essentially a plastic base… …   Wikipedia

• pigment — /pig meuhnt/, n. 1. a dry insoluble substance, usually pulverized, which when suspended in a liquid vehicle becomes a paint, ink, etc. 2. a coloring matter or substance. 3. Biol. any substance whose presence in the tissues or cells of animals or… …   Universalium

• organosulfur compound — ▪ chemical compound Introduction also spelled  organosulphur compound , also called  organic sulfur compound   a subclass of organic substances that contain sulfur and that are known for their varied occurrence and unusual properties. They are… …   Universalium

• Photographic developer — In the processing of photographic films, plates or papers, the photographic developer (or just developer) is a chemical that makes the latent image on the film or print visible. It does this by reducing the silver halides that have been exposed… …   Wikipedia

• Congo red — IUPAC name sodium sodium 3,3 ([1,1 biphenyl] 4,4 diyl)bis(4 aminonaphthalene 1 sulfonate) …   Wikipedia

• phenol — phenolic /fi noh lik, nol ik/, adj. /fee nawl, nol/, n. Chem. 1. Also called carbolic acid, hydroxybenzene, oxybenzene, phenylic acid. a white, crystalline, water soluble, poisonous mass, C6H5OH, obtained from coal tar, or a hydroxyl derivative… …   Universalium

• Citrus Red 2 — IUPAC name 1 (2,5 Dimethoxy phenylazo) naphthalen 2 ol …   Wikipedia