red. Soluble in water for red, slightly soluble in alcohol for magenta. In concentrated sulfuric acid to purple, dilution after pink. Dye aqueous solution to join concentrated hydrochloric acid to red; With strong caustic for brown. Used for alcohol soluble varnish color.
Standard
|
Light Fastness
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Heat-resistant(℃)
|
water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
Melting point
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Stable
|
ISO
|
|
|
180
|
|
|
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