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