Good price Indigo dye blue powder CAS 482-89-3

Quick Details Port: QINGDAO, SHANGHAI Payment Terms: L/C,T/T,Western Union Supply Ability: 10000 Kilogram/Kilograms per Month Other Names: Vat Blue Type: natural blue pigment Usage: Coating Pigment Molecular Weight: 262.26 EINECS No.: 207-586-9 MF: C16H10N2O2 Style: Organic Pigment Density: 1.01 g/mL at 20 °C Melting point: >300 °C(lit.) CAS No.: 482-89-3 Packaging Detail: 25 kg bag or According to customer’s requirement.           • Product Description                                                                          Indigo   It appears as blue powder, being odorless and slightly soluble in water, ethanol, glycerol and propylene glycol, insoluble in oil. At 25 ℃, the solubility is 1.6% (water), 0.5% (25% ethanol), 0.6% (25% propylene glycol). The 0.05% aqueous solution exhibits dark blue. It has poor performance on all the following aspects: light resistance, heat resistance, acid resistance, alkali resistance, salt tolerance, oxidation resistance and resistance to bacteria. Upon reduction, the color will fade, but the dye is good. The maximum absorption wavelength (610 ± 2) nm. Rat oral LD50: 2g/kg, mice oral LD50 2.5g/kg, ADI 0-5mg/kg […]