Basic Violet 4Physical Properties and light fastness.
Basic Violet 4
Light Fastness
1
Perspiration Fastness(fading)
1-2
Perspiration Fastness(stain)
-
Soaping(fading)
1-2
Soaping(stain)
-
Basic Violet 4 Properties and Applications: Soluble in cold water and hot water are violet blue, easily soluble in ethanol for violet. The strong sulfuric acid inorange, yellow to orange for diluted green. The dye solution to join sodium hydroxide have grey purple precipitation.