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Product Name: Indigo /Indigo Blue 94%
Other Name:Vat blue; Dihydro
Appearance: Dark blue even Granular and Powder
Cas No. 482-89-3
Product Description:
Indigo Blue, also known as indigo or indigotin, is a deep and rich color close to the color wheel blue, as well as some variants of ultramarine. It is a natural dye extracted from the leaves of certain plants, particularly those from the genus Indigofera. The dye has been historically significant and was one of the most valuable commodities in trade. Today, it is also produced synthetically and used in a variety of applications.

Product Specification:
| Cas No. | 482-89-3 | ||||||
| Colour Index | Vat Blue 1 | ||||||
| Appearance | Dark blue,Powder,Granular | ||||||
| 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 | ||||||
Product Applications:
1. It can be used for dyeing wool, silk and nylon, with excellent uniformity.
2. It is used for coloring leather, paper, soap, wood products, biological products, medicine, cosmetics, and also as a food coloring agent.

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