Acid Blue 7/ Acid Blue a/ Acid Dyes

• CAS No.: 3486-30-4
• Formula: C37h35n2nao6s2
• EINECS: 222-476-0
• Colour: Blue, Green
• Appearance: Powder
• Usage: Leather, Textile, Paper, Paint
• Model NO.: AB7
• Application Material: Wool
• Name: Acid Blue 7
• Content: 100%
• Type: Blue
• C.I.No.: Acid Blue 7
• Transport Package: 25kg/Drum, Carton Box, Bag
• Specification: 25KG/DRUM, CARTON BOX, BAG
• Trademark: Emperor
• Origin: China
• HS Code: 3204110000
• Production Capacity: 400kg/Month

Product Description

Product Name: Acid Blue 7
CAS No.: 3486-30-4
Molecular Formula: C37H35N2NaO6S2
Molecular Weight: 787.90
Relative Name:
AACL Pure Blue 200%;ABCOL Blue N B;Acid Alizarine Cyanine Green G;
Acid Blue 7 39003;Acid Blue E-A;Acid Bright Blue FCF;Acid Turquoise Blue AE;Acid Turquoise Blue HE;Acid Blue FCF;Acid Blue FG.
Shade: Colourful green light blue

Acid Blue 7 Dyeing Fastness(grade)
 

Standard		AATCC	ISO
Fiber		Wool	Wool
Soaping	Fading	4	2-3
	Stain	4	3
Persperation Fastness		2	3
Oxygen bleaching		2	3
Light Fastness		1	3

Acid Blue 7 Properties and Applications:
Violet powder, soluble in water, in 90 ºC water solubility of 50 g/L, soluble in ethanol. The strong sulfuric acid in orange, dilute yellowish later. The water solution is green light blue dye, add sodium hydroxide after it shows colorless, and you have a deep purple precipitation. Good levelness, white sex is better, for copper, iron ion sensitive, dyeing should pay attention, or influence colored light.
Application:
This product used for wool, silk,nylon with wool blended fabric dyeing and printing. Can also be used as a food dyes and organic pigments, also used for paper shading and anti-epidemic field, can also be used in leather color.