Zapon dyes
Description
[BASF] A registed trademark until 2010 for a series of synthetic dyes. Zapon dyes are initially soluble in water and most organic solvents. However, they hydrolyze in water or air to form a stable, insoluble product. Zapon dyes are used in varnishes and paints.in organic solvents ( alcohols and glycol ethers ) are readily soluble. They belong to the group of organic metal complex dyes , mostly with chromium or copper or cobalt as the central atom .
Zapon dyes are used as a component of transparent lacquers ( Zapon lacquer ) for metals and for wood stains.
Chemical structure of CI Solvent Yellow 32
Chemical structure of CI Solvent Red 8 Examples:
dye comment CI Solvent Yellow 32 Chromium complex CI Solvent Yellow 21 Chromium complex CI Solvent Yellow 45 Chromium complex CI Solvent Orange 5 Chromium complex CI Solvent Orange 6 Chromium complex CI Solvent Red 109 Chromium complex CI Solvent Red 35 Chromium complex CI Solvent Red 8 Chromium complex CI Solvent Violet 2 Chromium complex CI Solvent Blue 25 Copper complex CI Solvent Brown 37 Cobalt complex CI Solvent Black 34 Chromium complex
Physical and Chemical Properties
Generally soluble in organic solvents.
Resources and Citations
- Zapon dyes [1]
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- E.J.LaBarre, Dictionary and Encyclopedia of Paper and Paper-making, Swets & Zeitlinger, Amsterdam, 1969
- Website: dyes - es.epa.gov/p2pubs/techpubs