理化指标:项目Item规格Specification外观Apperance白色或微***纤维状、颗粒状或粉末状固体whiteoryellowishpowder干燥失重Lossondrying≤5.0%PH4.0-8.0目数ParticleSize98%通过100目min.98%passthrough100mesh粘度Viscosity100cps-200000cps,2%solution)