1. Molecular formula:C₂₂H₁₅N₄NaO₄S

2. Molecular weight:454.43

3. Structure formula:

4. CAS NO.:6406-56-0

5. Appearance: Red powder.

6. Specification: Strength 150%, crude

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 151

Properties and Applications
Acid Red 151

Red. Dark red powder. Soluble in water is cloudy brown light orange, soluble in ethanol (orange) and soluble fiber element, insoluble in other organic solvents. Meet strong sulfuric acid as blue light green, a weak light brown after diluted orange. Its water solution and strong hydrochloric acid for orange brown; Add thick sodium hydroxide solution for dark purple. Apply to polyamide, silk, wool and wool fabric dyeing of, also can used for the polyamide plastic shading. Can also be used in leather dyeing.

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