Name: Indigo

C.I:Vat Blue 1

English Name: INDIGO

Constitutional

Formula:

Molecular Formula:  C₁₆H₁₀O₂N₂

Molecular Weight:  262.26

Application:  AS dyestuff, be mainly used to dye cotton fabrics, moreover,be used to make 5.5'-7.7'-tetraroma indigo, biochemical medicament and indicator

Test method:  In accordance with HG/T2750-1996

1.Indigo powder

Appearance:  Dark blue even powder

Content %: ≥94

Particle size(-60 mesh)%: ≥95

Moisture% :≤1.0

Fe³⁺: 300

2.Indigo(Granular)(W.P.wettabel powder)

Appearance:  Dark blue even granular

Content%: ≥94

Moisture%: ≤1.0

Fe³⁺: ≤200ppm

Packing:  In 25kgs net bag/iron drum,20kgs net carton /iron drum