Titanium dioxide $(Ti{O}_2)$ is by far the most widely used pigment in white paint. Specifications for the white pigment powder used

in paint making require that it contain at least $60\%Ti{O}_2,5\%$ZnO, and $25\%$ fillers $($such as $Si{O}_2$ or $CaC{O}_3).$

The following powders are available from suppliers. Sketch out a block flow diagram for mixing these powders to make

white pigment powder.

Come up with a recipe using these powders for making $1000kg$ white pigment powder that meets the specifications. What is the

lowest $wt\%$NaCl product you could make? What is the highest $wt\%$NaCl product?