Overview - introduction of boric acid and its application field Appropriate chemical industry

boric acid ( Molecular formula: H3BO3) Is a kind of inorganic acid, mainly used for disinfection, insecticidal, anticorrosive, control the speed of uranium fission in the nuclear power plant, and making other boron compounds. It is a white powder or transparent crystal, soluble in water. Boric acid sometimes exist, in the form of mineral often exist certain minerals dissolved volcanic lake, or in hot springs. Medicinal USES of boric acid can be used to sterilize or treat minor cuts and burns, sometimes also made chitin, ointment and other drugs, boric acid aqueous solution can be diluted as eye drops. Boric acid to treat diseases such as mold such as candida infection disease. You can be in stocking ( Or stockings) Put some boric acid to treat athlete's foot ( Hong Kong foot) , still can treat otitis externa (boric acid In humans and animals. ） Boric acid is the only know are good for the eyes, so that boric acid can be used in the aspects of ophthalmology. Pesticide use boric acid was the national environmental protection agency (epa) used as a control cockroaches, termites, ants, fleas, bookworm crawl and other pests pesticides. Boric acid can affect their metabolism and corrosion their exoskeletons, it can make it contain attractants ( Sugar, etc. ) Food bait to kill pests, directly use dry boric acid also has the same effect. If directly with boric acid, boric acid may seep into the cracks of the floor, and when insects through cracks, feet stained with boric acid, when they finishing his own ( With his lips licking) Will eat into the boric acid, food after dehydration state, will be in the outside to find water, which led to the deaths of them within three to ten days. ( 2] ( 6] ( 7] Have kill bombs medicine by boric acid as baits component: such as about 3 - after placement Gradually within 7 days can't see the cockroach infested, no body, see the effect; And can keep the room clean, and pesticide ingredients chain kill bombs in medicine, by contrast, can avoid to cause bacterial breed. Anticorrosive USES boric acid in addition to pesticides, also can kill bacteria and termites, thus anticorrosion. Because of boric acid is toxic, so seldom used in food, but the commonly used on perishable things such as wood. Usually the boric acid made from special ointment, and painted on the wood, or put the soaked wood into wood, boric acid and ethylene glycol is the advantages of boric acid do so agents can deep into the wood. The above two methods can achieve prevent fungi, bacteria, termites and moisture, and other functions. Other industrial use boric acid in addition to disinfection, insecticidal, anticorrosive, can also be used in the manufacture of glass, uranium, enamel, leather, paper, glue and explosives. In the United States is more widely used in detergent, due to the melting of boric acid can dissolve other metal oxides, which can be used for brazing and soldering flux. Plant USES boric acid and the other is an important function in the plant controlled fission rate, and affects the capacity of the plant, in general, the release of the fission neutron quantity control of the fission rate, and boron is a kind of very atom absorbs a neutron, absorb the amount of 20%, boron - among them 10 ( One of the boron isotopes) The highest, up to 80%. Thus the boron - Boric acid injection made of 10 nuclear power electric furnace, control the rate of nuclear fission.