Products name | Indigo(C.I Vat Blue 1#) | constitutional formula | | molecular formula | C16H10N2O2 | molecular weight | 262 | nature | This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether, but can be dissolved in hot aniline and melt phthalic anhydride. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance. | test condition | HG/T 2750-1996 | appearance | dark-blue uniform powder or granule | original powder | content | %≥94.0 | particbe size(60mesh) | %≥96.0 | moisture | %≤1.0 | Fe3+ | <200PPM | Send your inquiry to this supplier Send Inquiry
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