Products Description of C.I. Acid Black 194 CAS#61931-02-0
C.I. Acid Black 194 is an acid azo dye with black shade, mainly supplied as dark powder or granular form. It is soluble in water, showing good dyeing affinity for protein fibers such as wool, silk and polyamide fibers under acidic dyeing conditions.
This dye features stable chromophore structure and reliable batch-to-batch color consistency. It offers balanced fastness properties including light fastness, washing fastness and perspiration fastness, meeting the standard requirements for textile dyeing. It is widely used in textile dyeing and printing, and can be blended with other acid dyes to adjust shade.
C.I. Acid Black 194 Chemical Properties
| Molecular formula | C20H12N3NaO7S |
| Molecular weight | 461.38 |
| solubility | Soluble in water; solubility approx. 70 g/L at 25 °C, soluble in methanol, slightly soluble in ester solvents |
| Moisture | ≤ 5.0% |
| Insoluble matter in water | ≤ 0.5% |
| Light fastness | Grade 5 |
| Washing fastness | Grade 4–5 |
| Perspiration fastness | Grade 4–5 |
| form | Powder |
| color | Dark brown to black |
| Stability: | Hygroscopic, Light Sensitive |
| CAS DataBase Reference | 61931-02-0 |
| EPA Substance Registry System | C.I. Acid Black 194 (61931-02-0) |
Product Application of C.I. Acid Black 194 CAS#61931-02-0
C.I. Acid Black 194 is a high-performance acid dye specially developed for textile coloration. It is primarily applied for dyeing and printing of wool, silk and nylon polyamide fibers in acidic dye baths. It can be used for piece goods, yarns and knitted fabrics, and is often compounded with other acid dyes to produce different black and dark blended tones. It is suitable for garment dyeing, hosiery and textile finishing processes that demand stable black shade.
Besides textile applications, it can also be used for coloring leather in some cases. It delivers level dyeing performance and exhibits compatible shade matching with other acid dyes for flexible color formulation. It is favored by dyeing mills for its dependable shade reproducibility in bulk continuous production.
