Difference between light calcium carbonate and heavy calcium carbonate
The production process of light calcium carbonate is different from heavy calcium carbonate, so the price of light calcium is therefore more expensive than heavy calcium, in the purchase, we often face the problem of identifying, for those who have not been in contact with the industry how to identify heavy calcium and light calcium?
Distinguish between light calcium powder, heavy calcium carbonate is also a way to measure the particle size of light calcium carbonate dispersion, heavy calcium fine particles irregular appearance, is a polydisperse powder. It has a large particle size and a wide dispersion. It is almost insoluble in water in the water with ammonium salt and iron trioxide water soluble, insoluble in alcohol. Encounter dilute acetic acid, dilute nitric acid occurs bubble boiling, while water soluble. Light calcium powder small particles regular shape, can be seen as a monodisperse powder, however, can be a variety of appearances, such as fusiform, cubic, needle-shaped, chain, spherical, flake and quadrangular column.
Calcium carbonate in this variety of shapes can be produced by controlling the chemical reaction situation. It is insoluble in water and alcohols, and dissolves in acids, while releasing carbon dioxide in an exothermic reaction. It is also soluble in ammonium chloride reagent. It is stable in gases and has a slight moisture absorption effect.
Heavy calcium carbonate and light calcium carbonate in the form, fine particles of the strength of the differences, it is these differences make them in the physical and chemical characteristics of different roles, appear different effects. Heavy calcium powder has a wide range of functions, it is added to the rubber can get more than pure rubber vulcanizate higher tensile hardness, tearing rigidity and wear resistance. It is used in plastic products can play the kind of skeleton effect, the size of the plastic products can play a significant role in the stability of the performance, but also increase the density of the products, and improve the appearance of the raw materials and the appearance of the brightness and uniformity. It is used in the water-based paint industry, can make the paint does not settle, easier to disperse, paper with heavy calcium carbonate can guarantee the strength and whiteness of paper, and the cost is low.
Calcium bicarbonate is used in the construction industry in the important role of concrete, can increase the hardness and density of goods. It is used in floor tiles in all walks of life, used as a way to grow the whiteness and tensile strength of the product, improve the rigidity of the product and reduce the cost of creation. Light calcium powder can be used in rubber, plastic, paper, paint and silver powder and other industrial fillers, widely used in organic synthesis, metallurgy, glass and asbestos and other creation.
