dye|World dye variety

Name:C.I.Direct Yellow 10,C.I.14140

Molecular Structure: Single azo class

C.I.Direct Yellow 10,C.I.14140,CAS 6408-88-4,646.63,C28H16N4Na2O6S3,Oriol Yellow

Molecular Formula:C₂₈H₁₆N₄Na₂O₆S₃

Molecular Weight: 646.63

CAS Registry Number:6408-88-4

Manufacturing Methods :  p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ℃ heat, with hair smoke from the sulphonated sulfuric acid alkali primrose spirit, its product diazo, coupled with 2-Hydroxybenzoic acid.

Properties and Applications:  red light yellow. Soluble in water for golden brown, slightly soluble in alcohol. The strong sulfuric acid is palm in light orange, diluted for lemon yellow. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution for orange brown precipitation.

List of Suppliers:

Oriol Yellow( Geigy Co. Ltd )