Specifications Alpha-1 Alpha-2Alpha-3KS-catalyst Sb2O3 min. 99.60% 99.60%99.60% 99.90%As max. 0.05%0.05% 0.05% 0.01%Pb max. 0.10%0.08% 0.10% 0.01%APS, micron0.4-0.60.9-1.22.0-2.40.3-0.4MEG, % 2.50-3.50 Standard packing: in 2200lbs bulk bags or 55lbs paper bags, palletized.Technical data and MSDS are available upon request.