Indigo

Alias: Vat Indigo
Colour Index: C.I. Vat Blue 1 (73000)
CAS No.: 482-89-3
Molecular Formula: C₁₆H₁₀O₂N₂
Molecular Weight: 262.27
Chemical Name: 3,3'-dioxobiindoline

Note: Packaging can be customized as customer request.

Indigo Powder

Properties & Application:
Pickled indigo powder is a new type of indigo formulation refined from conventional indigo. It has low iron content, low impurities and high purity, and its vat liquor is clear and transparent. When used for cotton fiber dyeing, it delivers a brighter shade than regular indigo.

Main Specifications:

Item	Specification
Purity	≥96.0%
Shade	Approximate to standard sample
Iron	≤200PPM
Moisture	≤1.0%
Strength	100% of standard sample
Fineness	≥95% passing 60 mesh
pH	7
Appearance	Dark blue uniform powder

Note: Packaging can be customized as customer request.

Granular Indigo

Properties & Application:
Indigo granular is produced by adding auxiliaries to pickled indigo, followed by slurrying and spray drying. It features low dust and good flowability, suitable for automatic feeding. It exhibits excellent wettability and dispersibility with little caking tendency. It has stable storage performance, low moisture absorption and no static electricity. It delivers uniform fabric surface and bright shade after dyeing.

Main Specifications:

Item	Specification
Purity	≥93.0%, 94.0%
Shade	Approximate to standard sample
Iron	≤300PPM
Moisture	≤1.0%
Strength	100% of standard sample
pH	8-9
Appearance	Dark blue granules

Note: Packaging can be customized as customer request.