1. Molecular formula:C₂₂H₁₆N₃NaO₆S₂

2. Molecular weight: 505.5

3. Structure formula:

4.Acid  Red 42 CAS NO.:6245-60-9

5. Appearance: Red powder.

6. Specification: Strength 200%

7. Usage: Mainly used in dyeing of wool and worsted goods.

8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means.
Acid  Red 42

Properties and Applications

Acid  Red 42
Blue-ray red. Soluble in water for red, soluble in ethanol purplish red color. The strong sulfuric acid for dark purple, to orange diluted. In water solution to join strong hydrochloric acid have red brown precipitation; Add sodium hydroxide have purplish red precipitate

Acid  Red 42
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