Acid Yellow 36, is also known as Acid Gold Yellow G or Metanil Yellow G. It is a yellow powder, red light yellow to orange. Acid Gold Yellow G will produce red after diluted precipitation, in purple sulfuric acid. In a blue nitric acid, it then turned into orange. Its water solution with hydrochloric acid is red, and the precipitation produce; Add sodium hydroxide solution unchanged, excessive yellow produced after precipitation. Copper ions in dyeing color green dark; Iron ions in a shallow color; Chrome ions in a slightly change. Discharge is good.

Character: Yellow powder. Soluble in water, orange yellow, moderately soluble in ether, benzene and soluble fiber, slightly soluble in acetone.

C.I. :   13065

CAS NO. : 587-98-4

Molecular Formula: C₁₈H₁₄N₃NaO₃S

Molecular Weight: 375.3768

Packaging Details: 25kg iron drum

Application:

• Mainly used for soap shading, coloring paper and cosmetics.
• Also used in dyeing and printing of wool and silk fabrics, leather dyeing;
• Used as indicator (pH = 1 ~ 3);
• Coloring in medicine, organic pigment, paint, wood products and biological coloring.