crushed limestone then it is pressurized so that it for like a solid rock but is not as rigid as a rock because you can write with it on a blackboard.
The chemical composition of dustless chalk is calcium sulphate treated with a binder like starch or gum. The particles calcium sulphate are made to be very fine in dustless chalk.
Dustless chalk is a type of chalk that produces less dust than traditional chalk. Most of these products are made of calcium sulphate and a binder like starch to reduce dust production.
Limestone , Water and Limestone
water paint and clay
You can't.
Maybe :3
Chalk dust (calcium carbonate) is not magnetisable.
i think it would be a suspension
on overexposure, it triggers out respiratory problems.
Chalk is comprised of calcium sulfate. Specifically, it comes in the form CaSO4.2H2O, which is the dihydrate often known as gypsum.
dust from a chalk. Chalk is made from calcium carbonate, CaCO3.
Chalk is a form of calcium carbonate, so chalk dust is also a form of calcium carbonate.
Maybe :3
The chalk will be ground into chalk dust by the pebbles.
mechanical chalk dust dispenser's hypothesis is that it aims to hasten the removal of chalk dust on the chalkboard eraser
balls
milk provider,chalk dust,saw dust
Chalk dust (calcium carbonate) is not magnetisable.
you can filter it
ambot lng
i think it would be a suspension
on overexposure, it triggers out respiratory problems.