C.I.Number: 363Main chemical name: Benzimidazole DerivativesSpecification: Appearance: Brown liquidIonic character: catinicWhitening Strength: 100±2%Property:1.with strong fluorescene, excellent whitening performance and bluish-violet shade.2.Good acid stability, stable in Sodium chlorous.Application: Main be used in whitening of acrylic and blends.Treating Process:1. For pure acrylic:Dosage: 0.21.0%(BAC)  PH: 3-4 (Adjusted by oxalic acid)Bath ratio: 10-40 temperature: 90 ~98×40-60min2. One bath process of scouring hydrogen peroxide bleaching and whitening:Dosage: 0.21.0%(BAC)  hydrogen peroxide: 1-2g/LDodium nitrate: 1-3g/LPH: 3.5-4 (Adjusted by oxalic acid)Bath ratio: 10-40 temperature: 90 ~98×30-40min