Calcium Carbonate powder - Chalk Arts and Crafts NEVER apply boric acid onto

NEVER apply boric acid onto countertops or other exposed surfaces

Sodium sulphate is soluble in water and glycerine but is insoluble in ethanol

Non-ionic Nature: As non-ionic surfactants

CAS: 1934-21-0

Calcium Carbonate powder - Chalk Arts and Crafts NEVER apply boric acid ontoCALCIUM CARBONATE Technical Industrial Grade Calcium carbonate, commonly known as chalk or calcite is a non combustible, non toxic, odourless white powder with the formula CaCO3. It occurs naturally in the minerals aragonite, calcite, limestone and marble which makes up about 4% of the earths crust. Calcium carbonate is produced by the sedimentation of the shells of small fossilized eggs, skeletons, snails, shellfish, and coral over millions of years.