After cooling, became a colourless

As to chemical, at drills there is a special appointment: use the small circle made of a platinum wire which lower in small to the drill, and place heating in a gas or alcohol lamp. In the beginning, the drill will appear in many small water of a crystal of bubbles - evaporation of high temperature, and then to thaw in colourless liquid. After cooling, became a colourless transparent body as similar to a bead, firmly attach a small circle which made of a platinum wire. If you are lowered then in a small metal oxide platinum wire on fires on high temperature, cold, by the beads, essential on a set of flowers. the lowered metal oxide of cobalt, a bead were dark blue; falling of an oxide of chrome green beads; the lowered oxide of iron as yellow beads heat up as brown. In analytical chemistry it call reaction of beads бората.

Use various colors of beads of boric acid, the analysis of various metals can. Now, the metal supplier of powders usually use reaction of beads of boric acid to the analysis of the metal minerals collected in the wild area because this method of the chemical analysis is very simple, you can quickly define a chemical composition of a sample. Similarly, the drill it is often used as a rust stripper. As, when drill heated up, плавя metal oxides on a surface - a rust. Besides, also used in fireworks storm because when it is heated up, it can radiate beautiful green light. That costing a mention that the drill gradually became an important role in agriculture - Pine forest. It was found that the content of pine forest at plants not so, and only hundred-thousandth from dry weight of plants to about one ten-thousand; however, it is obligatory. If shortage of the soil of pine forest, flax, hashish and lucernes stops grow, and even death. Shortage of sunflower of pine forest, will expose the dried-up grain, the oil contents decreased.

If shortage of a beet of pine forest has dry decay - underground decay of a basis far; shortage of development of an outgrowth on a bean of pine forest will be also mentioned. According to research, pine forest - one of an essential microcell in plant growth, plays very important role in regulation of a metabolism of carbohydrates of its plants. Apply the correct quantity in area to correspond to requirements of grain crops of pine forest. But rate of application of pine forest should be corresponding, no more better; if use is too much, grain crops will be the saved death, even sheep ate, such leaves of grain crops will fall ill with enteritis, such enteritis in the veterinary science known as enteritis of pine forest.