A raw material of detergent powder Whitening Agent 31#,Whitening Agent,Optical Brightener Item Index Appearance Light yellow powderFluorescent density In accordance with standard sampleMoisture 5.0% maxWater insolubles 0.5% maxSize distribution Residue on 0.2mm mesh 5% maxWhitening Agent 31#,Whitening Agent,Optical Brightener Fluorescent Whitening Agent 31#,Whitening Agent,Optical Brightener