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Basic Dyestuff

RHODAMINE B - BASIC VIOLET 10 (C.I.NO.45170)

Physical Appearance Bright reddish violet powder
Application Used for any fibers and can be obtained attractive shades with enough deep colours yield, they can be applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather, Toners and Colour lakes prepared from basic dyes possess very fastness to light and therefore widely employed in the preparation of carbon paper, ball-pen, oil & stamp pad inks. Also in manufacturing paint and printing inks.
Chamical Composition C28H31C1N2O3
Solubility Bluish red with strong fluorescence when dissolved in water and ethanol
Molecular weight 479.02
Fastness Properties

Light: 3-4
Washing: 4
Water: 4
Perspiration: 4



MALACHITE GREEN - BASIC GREEN 4 (C.I.NO.42000)

Physical Appearance Green Crystal/Powder with a metallic lustre
Application Used for any fibre and can be obtained shades with deep colours yield that can be applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather. Also in Manufacturing of Paints and Printing Inks.
Solubility Very Soluble in Alcohol, Methanol, Amyl Alcohol, Water Solutions are Blue-Green
Absorbtion Max 616.9nm
Molecular weight 364.90
Fastness Properties

Light: 4-5
Washing: 4-5
Water: 5
Perspiration: 4



 
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