Acid Dyes - Ranbar Blue SR5028-2 Anionic Dyes - Acid Blue 9

Index number: Acid Blue 9

CAS Registry Number: 3844-45-9

EINECS No.: 4223-333-98

Molecular formula: C37H34N2Na2O9S3

Molecular weight: 792.86

Chemical structure: Triarylmethane class

Dye type: Acid dyes (anionic dyes)

Solubility: easily soluble in water

Color hue: greenish blue

Physicochemical properties:

Appearance and properties	Blue-violet powder
Coloring intensity	100±3%
Fineness (80um sieve residue)	≤5.0%
Melting point	283°C
PH value	7-8
Solubility (80°C)	60g/L
Drying weight loss	0.9-10%
Insoluble matter content	0.33%
Water content	3.45%

Product Description:
Ranbar Blue SR5028-2 acid dye is a chemical structure of triphenylmethane type organic compound anionic dyes, acid blue 9, the appearance of blue-purple powder, easily soluble in water, the aqueous solution is green-phase blue, add sodium hydroxide colorless and accompanied by dark purple precipitation appears, in concentrated sulfuric acid is orange, diluted light yellow.

Ranbar Blue SR5028-2 anionic dyestuff has bright color, strong dyeing power, and good homogenization, but the dyestuff is sensitive to copper ions and iron ions, which needs attention when dyeing, otherwise it will affect the color light.

Product Applications:
Ranbar Blue SR5028-2 acid dyestuff is mainly used in the textile processing industry for dyeing and printing of wool, silk, nylon fiber, nylon, wool blended fabrics, etc. It can also be used for coloring leather, paper, wood, glass water, cleaning agents, etc.

Tip: Due to the difference in filming equipment and light angle, the color shown will have a slight error, the color is for reference only, and the actual application of the product to show the effect shall prevail.

Color Model	Index number	Color hue	Characteristics and applications
Rose SR1220-2	Acid Red 52	Blue-Red +1	Acid dyes Anionic dyes Water-soluble dyes Slightly higher sunlight resistance grade Wool Woolen thread Water-based water pen Wood
Big red SR1610-2	Acid Red 18	Yellow-Red, Deep Red
Yellow SR3080-2	Acid Yellow 23	Red-Yellow
Grass green SR4360-2	Mixed	Yellow-Green
Blue SR5030-2	Acid Blue 7	Green-Blue +1
Blue SR5028-2	Acid Blue 9	Green-Blue