Ranbar Green SR4050-1 Malachite Green Basic Dye
- Malachite Green Basic Dye – Basic Green 4 – Ranbar SR4050-1
- Index number: Basic Green 4
- CAS Registry No.: 569-64-2
- Molecular formula: C23H25ClN2
- Molecular weight: 364.91
- Chemical class: Triphenylmethane class
- Dye type: Basic dyes
- Solubility: easily soluble in water and ethanol
- Color hue: bluish green (malachite green)
| Appearance and properties | Green crystalline powder with glitter |
| Coloring intensity | 100±3% |
| Melting point | ＞112℃ |
| Moisture content | 3.54% |
| Insoluble matter content | 0.38% |
| Fineness (80um sieve residue) | ≤5.0% |
| Solubility (80℃) | ≤45g/L |
| Lightfastness | Grade 3 |
Ranbar Green SR4050-1, Malachite Green Basic Dye, is a blue-green water-soluble dye with a chemical structure belonging to the triphenylmethane class. It shows a color index of Basic Green 4 and appears as a sparkling green crystalline powder.
This Malachite Green alkaline dye, when dissolved in water or ethanol, displays a vibrant bright turquoise-green color. In concentrated sulfuric acid, it changes to yellow, turning into a deep orange upon dilution. In concentrated nitric acid, it appears orange, changing to orange-brown when diluted. Adding caustic soda to its aqueous solution produces a white precipitate with a greenish glow, while adding hydrochloric acid changes its color to red-yellow.
Ranbar Green SR4050-1 Basic Dye is widely utilized in the textile and leather industries due to its outstanding solubility in water and ethanol, along with strong affinity and permeability. It imparts vibrant and vivid colors to fabrics and leather, making it an ideal choice for a diverse range of textile and leather products.
Ranbar SR4050-1 Malachite Green Basic Dye is recommended for use in a variety of industries, including polyester, acrylic, silk, wool, various synthetic fibers, polypropylene fiber, leather, hemp, bamboo, wood, incense, straw, paper, water-based pens, painting colors, disinfectants, ink, and paint applications.
