Chemical Properties
Carbazole Violet (Pigment Violet 23)is a bluish violet pigment that is uncommonly strong, resistant to solvents, and shows fair weatherfastness.
Uses
Carbazole Violet is used primarily as a shading pigment with copper phthalocyanines and for toning whites in a variety of systems.
Preparation
Pigment Violet 23 is formed by condensation of chloranil with 3-amino-N-ethylcarbazole.
Properties and Applications
|
TEST ITEMS
|
SPECIFICATION
|
|
APPEARANCE
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VIOLET POWDER
|
|
SHADE
|
BLUISH
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HEAT RESISTANCE
|
300 °C min
|
|
LIGHT FASTNESS
|
7-8
|
|
ACID RESISTANCE
|
5
|
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ALKALI RESISTANCE
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5
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FASTNESS TO BLEEDING
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5
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OIL ABSORPTION
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40-45%
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SPECIFIC SURFACE
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28 m
2
/g
|
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DENSITY
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1.60 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
|
|
WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
|
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TINTING STRENGTH
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100-105 %
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