Difference between revisions of "Zapon dyes"

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== Description ==
 
== Description ==
  
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[BASF] A brand name 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.
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[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. 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 (such as [[Zapon lacquer]]) for metals and for wood stains.  Some examples are:
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{| class="wikitable"
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|-
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! dye
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! comment
 +
|-
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| CI Solvent Yellow 32
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| Chromium complex
 +
|-
 +
| CI Solvent Yellow 21
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| Chromium complex
 +
|-
 +
| CI Solvent Yellow 45
 +
| Chromium complex
 +
|-
 +
| CI Solvent Orange 5
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| Chromium complex
 +
|-
 +
| CI Solvent Orange 6
 +
| Chromium complex
 +
|-
 +
| CI Solvent Red 109
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| Chromium complex
 +
|-
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| CI Solvent Red 35
 +
| Chromium complex
 +
|-
 +
| CI Solvent Red 8
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| Chromium complex
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|-
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| CI Solvent Violet 2
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| Chromium complex
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|-
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| CI Solvent Blue 25
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| Copper complex
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|-
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| CI Solvent Brown 37
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| Cobalt complex
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|-
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| CI Solvent Black 34
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| Chromium complex
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|}
 
== Physical and Chemical Properties ==
 
== Physical and Chemical Properties ==
  

Latest revision as of 09:37, 6 June 2022

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. 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 (such as Zapon lacquer) for metals and for wood stains. Some examples are:

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

  • 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

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