Product Introduction
Acid red 374 CAS# 6507-78-4 is a diazo dye with the appearance of dark red powder. It dissolves in water. Slightly soluble in ethanol. The water solution shows reddish orange color.
Mainly used in the dyeing of wool, silk and nylon/polyamide.
pH 5.0-5.5 recommended for the dyeing of wool; pH 5.0-5.5 recommended for the dyeing of nylon/polyamide.
Physical and Chemical Parameters
|
Appearance |
Dark Red Powder |
|
pH Value ( 1% Water Solution) |
7.90-9.90 |
|
Strength |
98%-101% |
|
Color Difference CMC (2:1) |
≤0.50 |
|
Moisture |
≤8.00% |
|
Insoluble |
≤0.200% |
|
Solubility (90℃) |
≥50g/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 |
4-5 4-5 5 |
4-5 4 4 |
5 4-5 |
4-5 4-5 4-5 |
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