... the main crystal structure is of cubical shape.Application:1.Used as a fire retardant in the membranes of plastic industry, ... devices and household electric appliances, such as PVC,PP ,PE ,PS ,ABS,PU ,etc..2. Used as filling, covering agents and retardants ... in oil paint and coating material industry.4. Used as retardants in synthetic resin and papers.5.Used as catalytic agent in organic synthesis ...