Boric acid: All you need to know

What is boric acid?


Chemical Name: Boric acid

CAS No.11113-50-1

Synonyms: Boric acid; borid acid; Borsrenatliche; Boric acid flake; boric acid chunks; Boric acid Joyce; Boric acid USP/EP/BP; BoricAcid(AS), Borofax; boric acid chunks BH3O3; High-Quality Boric acid

In chemistry, boric acid CAS 11113-50-1 ( molecular formula: H 3 BO 3 ) is an inorganic acid, which is mainly used for disinfection, insecticide, antisepsis, controlling the rate of uranium nuclear fission in nuclear power plants, and preparing other boron compounds. It is a white powder or transparent crystal, soluble in water; sometimes it also exists in the form of minerals, often dissolved in certain minerals, volcanic lake water, or hot springs.

What are the uses of Boric acid?


  • Boric acid(boracic acid; H3BO3) is used for the manufacture of glass, welding, mattress batting, cotton textiles, and a weak eyewash solution.
  • Boric acid (H3BO3) is a solid, soft, smooth, solid weak acid that is used in the pharmaceutical and cosmetic industries.
  • A substance made by adding hydrochloric acid to a strong, hot solution of borax and water. When cooled, this mixture forms colourless crystals of boric acid. These require washing and recrystallization.
  • Boric acid was occasionally used as an antiseptic and in combined toning and fixing baths.
  • boric acid is an effective preservative against yeast. It is used in concentrations of 0.01 to 1.0 per cent and has fair to good antiseptic properties. It may also be used as a buffer and denaturant. Boric acid is prepared from sulfuric acid and natural borax. It can cause skin rashes and irritation if used in high concentrations. The use of boric acid in cosmetic preparations is no longer very popular.
  • Boric acid can be used to disinfect or treat minor cuts and burns and is sometimes used to make dressings, ointments, and other medicines.
  • Boric acid can treat fungal infections such as candidiasis. Tinea pedis (Athlete’s foot) can be treated by wetting socks with a small amount of boric acid, and boric acid can also treat otitis externa in humans and mammals.
  • Boric acid is the only acid that can be applied to the eyes, so it is also an important ingredient in most eye drops on the market.
  • Boric acid has been used by the U.S. Environmental Protection Agency as a pesticide to control cockroaches, termites, fire ants, fleas, silverfish, and other crawling pests.
  • Boric acid affects their metabolism and corrodes their exoskeletons. It can be used as a food bait containing attractants ( sugar, etc.) to kill pests. Direct use of dry boric acid has the same effect.
  • Boric acid can seep into cracks in the floor if it is used directly, and when insects walk through cracks, they get boric acid (on their feet licking with their mouths) they eat boric acid, and after eating They become dehydrated and go out for water, which causes them to die within three to ten days.
  • There are cockroaches that use boric acid as a bait ingredient: if no cockroaches are gradually seen in about 3-7 days after being placed, and there is no trace of corpses, the effect will be seen; Compared with the chain cockroach with pesticide ingredients, house cleaning can avoid the breeding of bacteria.
  • Boric acid when mixed with distilled water serves as a wound spray. The solution contains antiseptic properties that help in treating minor wounds such as cuts and burns. This must not be used too frequently.
  • Boric acid also kills bacteria and termites, so it is antiseptic.
  • As boric acid is toxic, it is rarely used in food but is often used in perishable things such as wood. Usually, boric acid is made into a special ointment and applied to the wood, or the wood strips soaked in boric acid and ethylene glycol are driven into the wood. The advantage of this is that the boric acid agent can penetrate deep into the wood. Both of the above methods can achieve functions such as anti-fungal, bacteria, termites, and moisture.
  • Boric acid can also control the rate of nuclear fission in nuclear power plants and affect the power generation of nuclear power plants.
  • Boric acid is also used for welding flux by blacksmiths.
  • Boric acid is widely used to treat boron deficiencies in plants.

It’s naturally present in vegetables, most fruits, grains, and nuts. However, we wouldn’t be able to tell because boric acid crystals are odourless and essentially tasteless. It’s not poisonous in very small amounts that occur in nature. However, boric acid is poisonous if swallowed or inhaled in large quantities. High concentrations of boric acid can potentially lead to reproductive problems, possible kidney damage, endocrine disruption, increased liver enzymes, abdominal pain, allergic reaction, burning sensation, irritation, central nervous system (CNS) stimulation, CNS depression, diarrhoea, rash, and vomiting.


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