Magnesium halide supported on an activated carbon prepared under vacuum will remove {HEAD ~ water} at {TAIL ~ 1 to 500 ppm} 
at
Magnesium halide supported on an activated carbon prepared under vacuum will remove { HEAD ~ water } at { TAIL ~ 1 to 500 ppm }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL