Zinc Chloride (ZnCl) 2 : A very soluble salt used to increase the density of water to points more than double that of water. Normally added to a system first saturated with calcium chloride. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}