Acid Yellow 42
- CAS NO.：6375-55-9
- Empirical Formula: C32H27N8NaO8S2
- Molecular Weight: 738.73
- MDL number: MFCD00003139
- EINECS: 228-940-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-10-23 17:25:30
What is Acid Yellow 42?
Preparation
2,2′-Disulfo-4,4,diaminobibenzene double nitriding, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one? (2 Moore) coupled.
Flammability and Explosibility
Not classified
Properties and Applications
yellow to red light yellow. Bright yellow powder. A lemon yellow soluble in water, soluble in ethanol is lemon yellow, slightly soluble in acetone. Meet strong sulfuric acid is lemon yellow, dilute still is shown after lemon yellow. Its water solution meet strong hydrochloric acid is lemon yellow; Sodium hydroxide solution meet strong a lemon yellow. In dyeing of copper (a little red dark, encounter chromium ion unchanged, encounter iron ion turn green dark. Mainly used for wool dyeing and can be used for wool, silk and glue directly printing, has the good discharge sex, can be used for the polyamide fiber dyeing and leather shading.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 4-5 | 5 | 4-5 | 4 | 5 | 4 | 5 |
| AATCC | 4 | 4-5 | 4-5 | 4-5 | 1 | 2-3 | 4-5 | 4-5 |
Properties of Acid Yellow 42
| Density | 1.617[at 20℃] |
| Water Solubility | 17.27g/L at 20℃ |
| EPA Substance Registry System | C.I. Acid Yellow 42, disodium salt (6375-55-9) |
Safety information for Acid Yellow 42
Computed Descriptors for Acid Yellow 42
Acid Yellow 42 manufacturer
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