| Customization: | Available |
|---|---|
| CAS No.: | 482-89-3 |
| Formula: | C16h10n2o2 |
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The granular indigo is processed by spray drying the slurry of acid washing indigo with additive,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.
1.Introduction
Appearance:Dark blue Powder, Granule
Molecular formula: C16H10N2O2
Molecular weight: 262.67
CAS No.:482-89-3
HS No.: 3204.1510.00
Function :For dyeing on cotton fabrics and Jeans and making up indigo bromide or made into organic pigment.
| Item | original powder | Powder (Diffusion) |
Granule | Liquid |
| Appearance | Dark blue even powder | Dark blue even powder | Dark blue even granule | Dark blue paste liquid |
| Content (Oxidimetry)% | ≥94 | ≥93 | ≥93 | ≥30 |
| Particbe size (-60 mesh)% |
≥96 | ≥96 | - | - |
| Moisture% | ≤1.0 | ≤1.0 | ≤1.0 | - |
| Fe3+ | ≤500ppm | ≤300ppm | ≤200ppm | - |
Mainly used in the dyeing of cotton yarns, cotton cloth, wool and silk; pure products are used in the dyeing of food; or processed into organic pigments.
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