Calcium Sulphate For Chemical Additives CA-A1

CA-A1 is an anhydrous calcium sulfate, is made by high temperature calcination of select, high purity gypsum which is then ground and air separated into a bright, white powder.CA-A1 is used in a variety of polymeric and cementitious systems.Typical Physical Properties Whiteness:96Specific Gravity:2.90Mohs Hardness:2-3Loose Bulk Density (lbs./ft.3):48Packed Bulk Density (lbs./ft.3):68pH—10% Slurry:10.5Refractive Index:1.58Oil Absorption:27.5 Reflectance: 91.4, –1.0, 1.0Median Particle Size (microns):7.0Top Particle Size (microns):75 Typical Chemical Analysis%CaSO499.0CaCO3.MgCO30.3CaCO30.2Free Moisture at 45°C0.1Combined Moisture at 225°C0.3 Typical Particle Size Data Sieve Analysis %Through 50 mesh (300 microns)100.0Through 100 mesh (150 microns)100.0Through 200 mesh ( 75 microns)100.0Through 325 mesh ( 44 microns)99.5Through 425 mesh ( 32 microns)97.0 Weight Distribution% Smaller Than%20 microns 93.010 microns 72.07 microns (median) 50.05 microns 40.02 microns 23.01 micron 12.0