What harm does adding calcium powder

Kitchen decoration is very important in home decoration, especially in the selection of materials such as cabinet, door panels, countertops and so on. It is the basic knowledge of choice that cabinets should be environmentally friendly, doors should be corrosion-resistant and countertops should be strong.

At present, the main materials of the mesa are quartzite, artificial stone and natural stone, and the usage rate of stainless steel is gradually decreasing. Simply speaking, artificial stone is made of resin, aluminium powder (calcium powder), pigments and curing agents; quartz stone is made of quartz crystal, resin and other additives, which are synthesized artificially under high pressure and high temperature. Because the quartz sand in the plate contains as much as 93% is called quartz stone, and it is also a product with high selection rate.

Because quartz stone is more expensive than other stone materials, some bad merchants will add calcium carbonate in order to reduce costs. Calcium carbonate is the main component of limestone, which is corrosive to a certain extent. If food is exposed to tables containing more calcium carbonate for a long time, it will cause certain pollution. After human consumption, it may cause certain impact on the digestive tract.

How to distinguish calcium powder from quartz slab? In fact, the method of identification is very simple, as we all know, calcium and acid contact will biochemical reactions. Oxalic acid or household toilet cleaning, vinegar can be used, dripping on the surface of the board if there are bubbles, indicating that the board contains calcium powde