Product Introduction
Acid green 25 CAS# 4403-90-1 is an anthraquinone dye with the appearance of dark green powder. It dissolves in water. Slightly soluble in ethanol and acetone. The water solution shows bluish green color.
Mainly used in the dyeing of wool, silk and nylon/polyamide. And can also be used in the dyeing of leather, paper, wood, cosmetics and soaps.
pH 4.0-5.0 recommended for the dyeing of wool; pH 4.0-5.0 recommended for the dyeing of nylon/polyamide.
Physical and Chemical Parameters
|
Appearance |
Dark Green Powder |
|
pH Value (1% Water Solution) |
5.00-7.00 |
|
Strength |
98%-101% |
|
Color Difference CMC (2:1) |
≤0.50 |
|
Moisture |
≤8.00% |
|
Insoluble |
≤0.200% |
|
Solubility (90℃) |
≥40g/l |
|
Degree of Fineness (200um) |
≤8 |
|
Dust-Proof Performance |
≥2 |
Fastness Properties (Polyamide)
|
DYEING DEPTH (O.W.F) |
LIGHT (XENON) |
WASHING (50℃) |
PERSPIRATION (ALKALI) |
RUBBING |
WATER |
|
1% |
1/1 |
CH PA CO |
CH PA CO |
(DRY) (WET) |
CH PA CO |
|
5-6 |
4 4-5 4-5 |
4 3 4 |
5 4-5 |
4-5 3 4-5 |
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