C.I. Acid Red 116
- CAS NO.：6245-62-1
- Empirical Formula: C22H16N4O4S.Na
- Molecular Weight: 455.44
What is C.I. Acid Red 116?
Preparation
4-(Phenyldiazenyl)benzenamine diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid. Note: this is a mixture of dyes, it is just one of the components.
Properties and Applications
red. Soluble in water for product red, and adequate soluble in alcohol in red. The strong sulfuric acid in dark blue, diluted the red light for shallow orange. In water solution to join strong hydrochloric acid have red brown precipitation; Add thick sodium hydroxide solution for purplish red color.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 2-3 | 3-4 | 2 | 3-4 | |||
| AATCC | 4 | 3 | 3 | 2 | 3-4 | |||
Safety information for C.I. Acid Red 116
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