Acid Brown 42
Name:C.I.Acid Brown 42,C.I.14251
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Brown 42,C.I.14251,CAS 6459-64-9,433.48,C16H16KN3O7S,Lecotan Brown MFGR
Molecular Formula:C16H16KN3O7S
Molecular Weight: 433.48
CAS Registry Number: 6459-64-9
Manufacturing Methods : 3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazo, potassium hydroxide in the presence of and of 4-Tert-butylphenol coupling, then use formic acid chromium processing, make its formed chromium complex
Properties and Applications: red light brown. Soluble in water for brown, soluble in ethanol, slightly soluble in soluble fiber element. The strong sulfuric acid for yellow brown, red brown after diluted; In nitric acid partly dissolved, for red brown; In 10% of sulfuric acid partly dissolved for red brown; In 10% of sodium hydroxide solution in a part of the solution, for red brown.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 6 | 4 | 3 | 4 | 2 | 3-4 | ||
| AATCC | 6-7 | 3 | 3 | 5 | 3 | |||
List of Suppliers:
Lecotan Brown MFGR ( Jinwoong Industrial Co Ltd )