Preparation
Formaldehyde? (1 Moore) and ?N-butyl-N-phenyltaurine?(2 Moore) condensation, again in N,N-diethylbenzenamine with heavy presence of chromate acid to oxidation.
Properties and Applications
bright purple. Soluble in water and ethanol is purple. The strong sulfuric acid to golden yellow, turquoise for diluted. In water solution to join sodium hydroxide color disappear or for very light purple.
Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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1
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4
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3-4
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3
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1
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2
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