Areas of use
Plaster has many applications. The industrial application of solid, granular gypsum is the burning of gypsum. The gypsum from the mine is mined, then burned, that is, it is heated above 200 ° C.
A small historical overview
The ancient Greeks and Romans were familiar with and used in the plaster. In ancient Egypt 5,000 years ago they have been used for the construction gypsum.
The plaster in nature
The formation of gypsum is quite common in nature. In Hungary, there are also beautiful gypsum crystals.
Desert rose
In the appearance of the living and the inanimate world, despite their differences in nature, we can observe many common features.
The formation of gypsum
The seawater evaporates every time, in addition to chlorine sodium gypsum is put down; the salt ponds still just deposited gypsum, rock salt and then.
What is gypsum?
Gypsum is a mineral species belonging to the group of water-containing sulfate minerals. Colorless or white.
Mineral plaster – versus rea plaster
The natural gypsum is mined. Gypsum mining is simple, because the plaster is usually recoverable resources are near the surface, so open pit losses.
A little chemistry – or gypsum mystery
One characteristic of gypsum and an important feature for us is that, when heated, the water content is lost in two steps.