Preparation
(a) Meldola Blue (C.I.B asic Blue 6, C.I. 51175) and N1,N1-dimethylbenzene-1,4-diamine condensation; (b) Naphthalen-2-ol and big excessive N,N-dimethyl-4-nitrosobenzenamine hydrochloride in hot ethanol in response.
Properties and Applications
navy blue. Soluble in water and ethanol to blue. For the strong sulfuric acid in green, diluted into grey purple, then change to blue. The dye solution to join sodium hydroxide dissolved in the ether generated brown precipitation.
|
Standard( Cotton )
|
Light Fastness
|
Persperation Fastness
|
Ironing Fastness
|
Soaping
|
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
3
|
1-2
|
|
3
|
|
1-2
|
|
![9-(dimethylamino)-5-((4-(dimethylamino)phenyl)amino)benzo[a]phenoxazin-7-ium chloride Structure](https://www.chemicalbook.com/CAS/20180703/GIF/4517-26-4.gif)