Ideal for clarifying and removing precipitates and preparation for qualitative analysis. These papers are made of 100 percent alpha cotton cellulose, with 0 to 12 pH tolerance. Maximum temperature is 248°f (120°c). sold in packs of 100. Manufactured to exacting standards for uniform performance Coarse retention; retains large crystalline particles and gelatinous precipitates. Fast flow rate, smooth surface, normal hardness.