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Acid Red 88
Acid red A

It is suitable for leather coloring.

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Test Report

Dye Name	Color Card	Light (Xenon)	Solubility（90℃g/L)	Dyeing Depth	Water	Washing （50°C） ISO 105 C10	Perspiration （ALkali） ISO 105 E04	Rubbing ISO 105 X12		Hot Pressing	Chlorination water

				o.w.f%	Ch Pa Co	Ch Pa Co	Ch Pa Co	Dry Rub	Wet Rub	(180°)	50mg/L
Acid Red 88		6		1	5 5 5	4 4 4	4-5 4-5 4-5	4-5	4-5	4-5	2

Dye Name: Acid Red A, Acid-fast Red A, Acid Red G

CAS Registry Number: 1658-56-6

Character:

The dye is a deep red powder with a vivid red hue.

- It is slightly soluble in acetone, but soluble in ethanol, water, and cellulose (which appears red).

- When it encounters concentrated sulfuric acid, it will show a blue-purple color, and when diluted, it will form a yellow-brown precipitate. It is also slightly soluble in nitric acid (reddish yellow).

- When mixed with sodium hydroxide solution, the dye appears a thin reddish brown color with precipitation.

- When encountering dyed copper and iron ions, the color is relatively dim, but it has good discharge performance.

Molecular Structure: Monoazo

Molecular Formula: C₂₀H₁₃N₂NaO₄S

Molecular Weight: 400.38
Samples: Free samples are available, PSS can be sent to you before shipment. The quality of this item is very stable and once you confirm the quality we can deliver to you directly without PSS.
Tianya Industry is a fine chemical enterprise that engages in R&D, production, and operation of acid dyes and intermediates, which has obtained an ISO9001 certificate. Contact us freely for more details.