We are an EU approved CE certified, REACH Certified and RoHS Certified company manufacturer and supplier of Whitening Agent Optical Brighteners for pulp and Paper Industry. We all want our papers to be as white as possible, don't we? Well, that's where Whitening Agent BRIGHTOMNI BBU Powder & Liquid come in. We supply Tetra Sulpho and Di Sulpho Optical Brighteners in Liquid and powder form. The raw material of paper often consists of impurities such as snippets of bamboo sticks and wood. These impurities dampen the brightness of the paper. We have various Whitening Agent Optical Brighteners Available for Paper application like... Optical Brightening Agent BRIGHTOMNI BBU-L in Liquid form, Optical Brightening Agent BRIGHTOMNI BBU-P in powder form, Optical Brightening Agent BRIGHTOMNI UP Liquid Optical Brightening Agent OBA 24 in powder form Fluorescent whitening Agent OBA 253 in Liquid form Optical Brightening Agent OBA 28 in powder form Optical Brightening Agent OBA 154 in Liquid form Optical Brightening Agent OBA 28 in powder form. Additional Information Physical Appearance : Greenish-Yellow Powder CAS No.: 16470-24-9 EINECS No.: 240-521-2 Specific Gravity / Bulk Density : 0.8-1.0 pH of Liquid or 1% Solution : 8-9 Strength by 100% : 100% Shade/Hue: Bluish white Whiteness/ Brightness : Equal to Std % of Active Substance : 21.95% Absorbance (18mg/l) : 0.217 Moisture Content : 2.40%