Leuco Sulphur Yellow 9
Name:C.I.Leuco Sulphur Yellow 9,C.I.53010
Molecular Structure:
C.I.Leuco Sulphur Yellow 9,C.I.53010,CAS 85737-01-5,12262-72-5,Diresul Brilliant Yellow 5G
CAS Registry Number:85737-01-5
Manufacturing Methods : To 133 parts of N-(2,5-dinitrophenyl)acetamide and 93 parts of Phthalic anhydride added previously melted (at 95 ℃) in 280 parts of sodium and 94 parts of sulfur crystals in and salt, this melt was heated to 130 ℃, for 10 to 11 hours. Then quickly heated to 180 ℃, heat 3 to 4 hours, until the dye detection satisfaction (BIOS 1155,33).
Properties and Applications: yellow. Straw yellow powder. Insoluble in water, in the Sodium sulfide solution solubility is very good, for yellow. Sodium hypochlorite solution dyeing content in the part fade, in concentrated sulfuric acid for dark orange..
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 3-4 | 4 | 3 | 4-5 | 4-5 | 4 | |
List of Suppliers:
Diresul Brilliant Yellow 5G( SA Cardoner )