... & gas drilling, moisture-absorbing,,Mutli-use Dryer, Dehydration agent, cryogen, removing agent, dust collecting agent, polycoagulant,refrigeration, Buiding antifreeze, rubber and petroleum industries ... dust- Active at extremely low temperatures - Immediate melting and prolonged de-icing 4), Specifications: . PurityIndexCalcium Chloride AnhydrousCalcium Chloride Dihydrate94%-96%77%min74 ...