Прямой красный 69
- английское имяDirect Red 69
- CAS №5915-58-2
- CBNumberCB7968206
- ФормулаC31H21N4NaO7S4
- мольный вес712.76
- файл Mol5915-58-2.mol
Прямой красный 69 химические свойства, назначение, производство
Подготовка
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. The product C.I. Direct Yellow 59 (C.I. 49000) diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.Свойства и приложения
red. Soluble in water is cherry red, not soluble in alcohol. The strong sulfuric acid for purple, after diluted purple precipitation. The dye solution to join strong hydrochloric acid with purple precipitation; Add thick sodium hydroxide solution no change.| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 3 | 2 | 1 | 1 | ||