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CAS number：81-77-6
molecular formula：C28H14N2O4
molecular weight：442.42
EINECS number：201-375-5
English synonyms:
14,18-anthrazinetetrone,6,15-dihydro-9;6,15-dihydroanthrazine-5,9,14,18-tetrone;anthraquinonedeepblue;aticvatbluexrn;benzadonebluers;bleusolanthrene;blueanthraquinonepigment;6,15-Dihydro-5,9,14,18-anthrazinetetrone, Pigment Blue 60
Related categories:
Vat dyes; dyes and pigments; dye intermediates; other heterocycles; dyes; chemical raw materials; synthetic material intermediates; organic chemistry; other raw materials
Chemical properties
| Melting point | 470-500°C |
| Boiling point | 553.06°C (rough estimate) |
| Density | 1.3228 (rough estimate) |
| Refractive index | 1.5800 (estimate) |
| Storage conditions | Sealed in dry,Room Temperature |
| Color index | 69800 |
| Acidity coefficient(pKa) | -1.40±0.20(Predicted) |
| Shape | powder to crystal |
| Color | Dark red to Dark purple to Dark blue |
| Water solubility | <0.1 g/100 mL at 21 ºC |
Merck | 14,4934 |
| Stability | Incompatible with strong oxidizing agents. |
LogP | 1.78 at 20℃ |
Dark blue powder. Insoluble in water, acetic acid, ethanol, pyridine, xylene, toluene, slightly soluble in chloroform (heat), o-chlorophenol, quinoline. It turns brown in concentrated sulfuric acid, and produces a blue precipitate after dilution. It is blue in the alkaline solution of sodium hydrosulfite and red light blue in the acidic solution.
Use
● Vat blue RSN is mainly used for cotton fiber dyeing and cotton printing, and also used for two-bath dyeing of cotton and polyester-cotton fabrics. Dyed viscose fibers are lighter in color. Can be combined with vat blue, brown, olive, etc. to spell blue, dark gray, etc. Also used in the manufacture of ink pigments.
● It is used for dyeing cotton fibers, and can also be used for direct printing of cotton fabrics, and can also be processed into pigments
● For dyeing of cotton fabrics
● Can replace phthalocyanine blue and permanent violet RL to formulate red light blue paint
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