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Molecular Formula: C23H25ClN2
Molecular Weight: 364.91
EINECS: 209-322-8
Purity: 97% Min.
Package: 5 g / 25 g / 1 kg / 25 kg
CAS: 569-64-2 Pigment Green 18
A triphenylmethane dye with fungicidal and limited antiseptic activity. The term Malachine green applies to the oxalate as well as the chloride. Harmful if swallowed. Avoid release to the environment.
Bright blue light green. Green belt flash crystallization. Soluble in cold water and hot water are blue-green, easily soluble in ethanol are blue-green. The strong sulfuric acid for yellow, diluted into dark orange; In nitric acid to orange, diluted into orange brown. The dye solution to join sodium hydroxide formation microstrip green white precipitation; Add hydrochloric acid to red light yellow. Used in acrylic, silk, wool, vinegar fiber dyeing, also used in leather, hemp, bamboo, wood, paper, shading, also used in the manufacture color amylum, solvent dye
| Melting point | 158-160¡ã°ä |
| Boiling point | 520.91¡ã°ä&²Ô²ú²õ±è; |
| density | 1.0448 |
| refractive index | 1.5940 |
| storage temp. | Refrigerator |
| solubility | Solubility Very soluble in water; soluble in ethanol, methanol, amyl alcohol |
| Colour Index | 42000 |
| form | Solid |
| pka | 6.90(at 25¡æ) |
| color | Brown |
| PH Range | 0(green)-2(green-blue) |
Production Method:
Condense N,N-dimethylaniline and benzaldehyde in the presence of sulfuric acid, then oxidize with lead dioxide and hydrochloric acid, then delead with sodium sulfate, neutralize with sodium carbonate, and then dissolve, crystallize and filter with oxalic acid The finished product is obtained after drying. Raw material consumption (kg/t) N,N-xylene amine 780 hydrochloric acid (31% 365betÓéÀÖbook) 1250 urea 6 sodium hydroxide (100%) 350 benzaldehyde 340 sodium hypochlorite 4820 lead acetate (98%) 215 yuan powder (98%) ) 570 oxalic acid (98%) 520 refined salt 1900 soda ash (98%) 290 emulsifier OP0.7 sulfuric acid (100%) 305
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