I. Ortho salt
Ortho salt is the salt produced by complete neutralization of acid and base, there will be no hydrogen ions in the acid, and there will be no hydroxide ions in the base, there are only metal cations and acid ions, and it is a neutral salt. Salts in chemistry are classified as single salts and combined salts; single salts are classified as ortho salts, acid salts, and alkali salts; combined salts are classified as complex salts and complex salts.
Second, positive salt classification:
1, strong acid and alkali salts
No hydrolysis, because they ionized anions and cations can not disrupt the ionization balance of water, so it is neutral.
2, strong acids and weak bases
We call the weak base part of the weak Yang, weak base ions can hold the hydroxide ions ionized from the water, disrupting the ionization equilibrium of the water, so that the ionization of the water is positively shifted, as a result of which the concentration of hydrogen ions in the solution is greater than the concentration of hydroxide ions, so that the aqueous solution is acidic.
3, strong alkali weak acid salt
We call the weak acid part of the weak yin, the same weak yin holds the hydrogen ion ion ionized from the water, so that the concentration of hydroxide ions in the solution is greater than the concentration of hydrogen ions, so that the solution is alkaline.
4, weak acid and weak base salts
Weak acid part of the hold hydrogen, weak base part of the hold hydroxide, to produce two kinds of weak electrolytes, and then compare their ionization constants Ka, Kb value of the size (rather than hydrolysis degree of the size).
Extended information:
Long-term use of sodium bicarbonate is not good for the body, and is usually manifested in the following ways:
1 Effects on the mental system: long-term use of Sodium bicarbonate can cause psychiatric symptoms such as muscle pains, convulsions, and persistent headaches.
2 Effects on the digestive system: long-term use of sodium bicarbonate, its weak alkaline will neutralize the stomach acid, is bound to affect the digestive, often appear, bad taste in the mouth, loss of appetite and nausea and other phenomena, gouty people have a lot of things can not eat, so the nutrients will be less, will lead to the body even weaker.
3 Impact on the cardiovascular system: long-term use of sodium bicarbonate, will lead to excessive sodium load in the body, which affects the heart function, but also make the blood vessels become brittle.
4 Impact on the urinary system: long-term use of sodium bicarbonate will lead to alkalosis of the kidneys, especially unfavorable for people with renal insufficiency, many people will also appear, urinary frequency, urinary urgency and other symptoms.
5 Interference with calcium absorption: the chemical formula of sodium bicarbonate, NaHC03 in the body to break down the carbonate CO3, CO3 and calcium (Ca) combined to form insoluble calcium carbonate. Due to the large amount of CO3 in the body, and with the muscle competitive binding calcium, will lead to muscle calcium deficiency, osteoporosis and so on.
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