China Textile Grade Dye Indigo Blue 94% for Jeans Garments, Find details about China Indigo Blue 94%, Indigo Day from Textile Grade Dye Indigo Blue 94% for Jeans Garments
Molecular formula: C16H10N2O2
Molecular weight: 262Nature :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.
Appearance:Dark blue even Granular and Powder
2.Specification of indigo blue:
Cas No. | 482-89-3 |
Colour Index | Vat Blue 1 |
Appearance | Dark blue,Powder |
Colour light | Similar as the standard sample |
Content | ≥93.0%,94.0% |
Moisture content | ≤1.0% |
Strength | Equal to 100 percent of the standard sample |
PH Range | 9.5-10.5 |
Content of ferric ions | ≤200PPM |
Properties | It is insoluble in water and alcohol.It is soluble in hot Aniline |
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