... 4. OCMA, API standards oil drilling mud additivesSalt clay drilling mud material, suitable for geological drilling, offshore drilling, geological drilling salt, high thermal stability ... Applications: Catalyst\pesticide carrier, liquid fertilizer \ SC pesticides, high-grade additives, pulp printing and dyeing, printing agent, agent batik, ... is:Mg5Si8O20(HO)2(OH2)4•4H2O. oil drilling mud additives