Product Introduction
Acid red 52 CAS# 3520-42-1 an xanthene dye with the appearance of dark red powder. It dissolves in water with very good solubility. Soluble in ethanol. The water solution shows fluorescent reddish color.
Mainly used in the dyeing of wool, silk and nylon/polyamide. And can also be used in the dyeing of leather. Used in detergents, cosmetics, fluorescent markers and for the production of fluorescent pigments.
pH 2-3 recommended for the dyeing of wool; pH 2-4 recommended for the dyeing of nylon/polyamide.
Physical and Chemical Parameters
|
Appearance |
Dark Red Powder |
|
pH Value ( 1% Water Solution) |
0.80-3.50 |
|
Strength |
98%-101% |
|
Color Difference CMC (2:1) |
≤0.50 |
|
Moisture |
≤8.00% |
|
Insoluble |
≤0.200% |
|
Solubility (90℃) |
≥30g/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 |
|
1 |
3 4 4-5 |
3 2 2 |
4-5 4-5 |
4 2 3 |
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