Coloring agents classifications

The above metals are used in many industrial processes. Cadmium, for instance, is plated onto fabricated metal parts to provide corrosion resistance, lubricity and other desirable properties it is used in rechargeable batteries, television and fluorescent light phosphors, inorganic coloring agents for paint, plastic and printing ink, and as a catalyst. Applications of the metals listed above are detailed in Table 2-1, categorized by Standard Industrial Classification (SIC) codes. These industries are discussed further in Section 4.0. 

Of the many classifications possible for pharmaceutical coloring agents, one of the most useful is to simply divide the colors into those that are soluble in water (dyes) and those that are insoluble in water (pigments). 

Classification Azobenzene Empirical C32H2oN4Na208S2 Properties Red powd. sol. (mg/ml) 1-10 mg water (20 C), < 1 mg in DMSO, 95% ethanol, acetone (20 C) m.w. 698.64 m.p. > 300 C Toxicology Mutagenic data TSCA listed Precaution Probably combustible incompat. with oxidizing and reducing agents copper dulls color iron makes it much duller Hazardous Decomp. Prods. Heated to decomp., emits toxic vapors of NOx and SOx Storage Store ambient temps. 

Classification Monoazo color chromium complex Empirical C2oHi5N4NaOsS Properties Brick red powd. m.w. 446.22 Toxicology May be harmful by inh., ing., or skin absorp. irritating to eyes, skin, mucous membranes, upper respiratory tract Precaution Incompat. with strong oxidizing agents... 

Synonyms Bis (2,4-dihydroxyphenyl) methanone and bis (2-hydroxy-4-methoxyphenyl) methanone Classification Organic benzophenone deriv. Definition Mixture of benzophenone-6 and -2 and other tetra-substituted benzophenone materials Uses UV absorber in NC lacquer, fluorescent paint, inks, and for protecting furniture woods, cosmetics, colored liq. toiletries, cleaning agents, isocyanate systems, and butyrate metal lacquers Manuf./Distrib. Celanese http //www. celanesechemicals. com http //www.chemvip.com EM Ind. 

Classification Fatty alcohol Empirical C16H34O Formula CH3(CH2)i4CH20H Properties Wh. waxy solid partially sol. in alcohol, chloroform, ether pract. insol. in water m.w. 242.27 dens. 0.8176 (49.5 C) m.p. 49.3 C b.p. 344 C acid no. < 2 iodine no. < 5 hyd. no. 218-238 flash pt. > 110 C ref. index 1.4283 surface-active dispersant, wetting agent, and compatibility aid for enhancing color acceptance in high solids coatings (alkyds, epoxies, UV and EB-cured... 

Classification Aldazine pigment Empirical C22H16N2O2 Properties Powd., m.w. 340.38 Storage When stored under dry conditions, has practically unlimited shelf-life Uses Fluorescent pigment in paints, lacquers, printing inks, wax chalks, crop protection agents, crack detectors, artists colors Pigment yellow 110 CAS 5590-18-1... 

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