Education, The science
The formula of boric acid in chemistry
This article will be devoted to boric acid, which is widely used in various fields of activity and is known to almost everyone. The formula of boric acid is extremely simple to remember. The article will consider the general characteristics and properties of boric acid, its application and its location in nature.
What is boric acid
The formula of boric acid in chemistry is known to many. It is rather weak compared to "colleagues." It is actively used for chemical experiments in schools. The formula for boric acid is H 3 Bo 3 .
The presented substance has slightly expressed properties of acids - it dissolves badly in water. One of the features is that the acid property of H 3 Bo 3 imparts the addition of an anion of the hydroxyl group. In other acids, the ability to cleave the H + proton is observed.
When boron hydrosulphate B (HSO 4 ) 3 is formed , which is very weakly resistant, boric acid can show rather weak signs of amphotericity. If the compound is exposed to thermal attack, boric acid will be able to dissolve the oxides metals, resulting in the formation of salts. The formula of our chemical compound in the presence of sulfuric acid in concentrated form can form ethers:
| H 3 Bo 3 + 3CH 3 OH → 3H 2 O + B (OCH 3 ) 3 |
During the process of neutralization with alkalis in water solutions, orthoborates containing (BO 3 ) 3 are not formed. This phenomenon is explained by the fact that they are almost completely hydrolyzed during neutralization due to an excessively small amount of the constant [B (OH 3 ) -. As a result of this reaction, salts of polyboreal acid, for example, metaborates, tetraborates and others, begin to form in the solution:
| 2NaOH + 3H 3 Bo 3 → Na 2 B 4 O 7 + 7H 2 O |
If alkalis are present in excess, they can go to metaborates:
| 2NaOH + Na 2 B 4 O 7 → 4NaBO 2 + H 2 O |
Both tetra- and metaborates are capable of hydrolysis, but in comparison with orthoborates have a lower degree of propensity.
Boric acid in nature
Boric acid, whose chemical formula H 3 Bo 3 , is often found in nature in a virtually free form - in the mineral sassolin. Moreover, this acid is a part of the water of almost every hot natural source. A fairly large amount of H 3 Bo 3 is found in underground mineral waters, which are extremely useful for health.
Use of H3Bo3 in humans
The chemical composition is used as a neutron absorber in nuclear reactors; in medicine, H 3 Bo 3 solution with a substance content of two percent is used as an antiseptic to disinfect the surface of the skin.
Photographers use it as a developer of fine-grained type. With its help, an acidic environment for fixations is created.
Casters use boric acid as a binder during the furnace lining.
In everyday life a person uses it to fight insects.
Acid is actively used in cosmetology for caring for problem skin.
In the food industry boric acid is called additive E284, and in the laboratories on its basis buffer solutions are prepared.
The boric acid formula H3Bo3 is used in the manufacture of ceramics, glass, fiberglass and fiber.
A lot of combined preparations of the ATX D08AD group have boric acid as one of the components.
Jewelers use it during the soldering of alloys, which include gold, as a base fluxing flux for soldering.
Is boric acid dangerous?
In conclusion, we can say that H 3 Bo 3 is an indispensable substance in human life and activity.
Similar articles
Trending Now