5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
- русский язык имя
- английское имя5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
- CAS №2947-64-0
- CBNumberCB22153074
- ФормулаC25H20O9
- мольный вес464.42
- файл Mol2947-64-0.mol
химическое свойство
| Температура кипения | 744.5±60.0 °C(Predicted) |
| плотность | 1.515±0.06 g/cm3(Predicted) |
| пка | 2.26±0.20(Predicted) |
5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] химические свойства, назначение, производство
Подготовка
(a) 2-Hydroxy-3-methyl-5-formylbenzoic acid (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) condensation, the product with Nitrosylsulfuric acid oxidation; (b) Formaldehyde (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) condensation, its product in Nitrosylsulfuric acid with 2-Hydroxy-3-methylbenzoic acid common oxidation.Свойства и приложения
brilliant red light purple. Soluble in water for brilliant orange red, soluble in ethanol for magenta. In concentrated sulfuric acid to orange, dilution still for wheat color. Dye aqueous solution to join sodium hydroxide as brilliant magenta.| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 4 | 4 | 5 | 5 | 4 | ||
| AATCC | 4-5 | 4-5 | 2-3 | 4-5 | |||