acidic properties are those that are most strongly manifested in the environment.They exist a number.You must be able to determine the acidic properties of alcohols and other compounds not only to identify the content of the respective medium.It is also important to recognize the substance studied.
There are many tests for the presence of the acidic properties.The most elementary - dive into the substance of the indicator - litmus paper, which reacts to the hydrogen content, rozoveya or blushing.And the more intense the color shows a strong acid.And vice versa.
acidic properties are enhanced with increasing radius of negative ions and, therefore, the atom.This provides an easier elimination of hydrogen particles.This quality is characteristic of strong acids.There
most characteristic acidic properties.These include:
- dissociation (elimination of hydrogen cation);
- decomposition (formation of acid oxide and water under the influence of temperature and oxygen);
- interaction with hydroxides (resulting in the formation water and salt);
- interaction with oxides (also formed as a result of salt and water);
- interacts with the metal prior to hydrogen in a row activity (formed the salt and water, sometimes with gas evolution);
- interaction with the salts (only in case of the stronger acid, which salt is formed).
chemists often have to get yourself acid.For their elimination there are two ways.One - mixing the oxide with an acidic water.This method is used most often.And the second - the interaction of a strong acid salt weaker.It is used less frequently.
known that the acidic properties are shown and many organic substances.They may be expressed more or less depending on the structure of the atomic nuclei.For example, the acidic properties of alcohols are manifested in the ability to cleave hydrogen cation by reacting with alkalis and metals.
alcoholates - salt alcohol - can be hydrolyzed by water and excrete alcohol with a metal hydroxide.This proves that the acid properties of these materials is weaker than that of water.Consequently, the medium strongly expressed in them.
acidic properties of phenol is much stronger due to the increased polarity of the OH compounds.Therefore, this agent can also react with hydroxides of alkali and alkaline earth metals.The result is a salt - phenates.To identify the phenol, the most efficient use of qualitative reaction with iron chloride (III), in which a substance becomes blue-violet in color.
Thus, the acidic properties of the various compounds are shown in the same way, but with a different intensity, depending on the structure and polarity of the nuclei of hydrogen bonds.They help determine the impact of substance and its structure.Along with these properties, there are also fundamental that the weakening of the first amplified.
All these characteristics are manifested in the most difficult substances and are an important part of the world around us.After all, at their own expense are many processes not only in nature but also in living organisms.Therefore, the acidic properties are extremely important, without them life would be impossible on the ground.
