Acid Blue 7

Acid  Blue 7 Acid  Blue 7
Acid Blue 7
Acid Sky Blue A
CAS NO.:3486-30-4
Quantity
    Acid  Blue 7 / Acid  Blue 7

1. Molecular formula: C37H35N2NaO6S2

2. Molecular weight:690.8

3. Structure formula:

4. CAS NO.:3486-30-4

5. Appearance: Blue powder.

6. Specification: Strength 100% powder & CDP.

7. Usage: Mainly used for wool, silk and nylon dyeing and printing.

8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means.

 Acid  Blue 7 Acid  Blue 7​​​​​​​ Acid  Blue 7​​​​​​​ Acid  Blue 7​​​​​​​ Acid  Blue 7​​​​​​​

Acid  Blue 7
Properties and Applications:

colourful green light blue. Blue powder. Soluble in water, but soluble in ethanol is blue. The strong sulfuric acid are olive green, yellow precipitation after diluted. A transparent green light blue aqueous solution at room temperature without gathered tendency, add sodium hydroxide subject to change after cooling,heated to boiling color from blue to violet precipitate. In dyeing copper and iron ions become dark green color. For heavy chromate salt not sensitive. For wool, silk and polyamide fiber fabric dyeing and printing, and can also be used in leather, paper, cosmetics, soap, biological and rubber color.

Acid  Blue 7

StandardLight FastnessSoapingPersperation FastnessOxygen bleachingFastness to seawater
FadingStainFadingStainFadingStain
ISO233-4322-333
AATCC13332232
 

Acid  Blue 7 / Acid  Blue 7

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