What is the difference between salt in everyday life and salt in chemistry 5

The salt mentioned in life refers to the processing and extraction from seawater, salt ponds, salt wells and salt mines, and its main component is sodium chloride (NaCl), which is called sea salt, pool salt, well salt and rock salt respectively. Human beings have relied on these salts in the past and in the future to ingest the inorganic salts that we need.

"Industrial salt" is sulfate, nitrate. The other is more harmful, which leads to the frequent accidental ingestion of toxic salts, resulting in food poisoning in the population.

Salt in daily life refers to the table salt that we commonly use.

The definition of salt in chemistry is a compound other than that formed by the interaction of a base with an acid.

In life, sodium chloride is generally referred to, but in chemistry, as long as it is composed of acid ions and metal ions, it is salt.

Salt in daily life refers to the salt we commonly use from seawater, salt ponds, salt wells and salt mines processed and extracted, its main component is sodium chloride ==

Common salts in life include Hengxiang sodium chloride, sodium carbonate, and sodium bicarbonate. Sodium chloride is mostly used as a flavoring agent, and sodium chloride is used to prepare normal saline. The chlor-alkali industry is to produce sodium hydroxide, chlorine and hydrogen by electrolysis of salt water.

Industrially, seawater salt is used to obtain coarse salt auspicious base, and coarse salt is purified to obtain refined salt.

Sodium carbonate is also known as soda ash, soda ash is not alkali but salt, but the aqueous solution is alkaline. Sodium carbonate is widely used in the production of glass, paper, textiles and detergents. Sodium hydroxide is produced from sodium carbonate and calcium hydroxide industrially.

Sodium bicarbonate is also known as baking soda. There are two uses, the first is the main ingredient of baking pastry baking powder (using sodium bicarbonate heating to produce sodium carbonate, water and carbon dioxide, and the other is excessive stomach acid.

Salt

In chemistry, salt refers to a class of metal ions or ammonium ions (NH) combined with acid ions of compounds, such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reaction, such as sulfuric acid and sodium hydroxide to produce sodium sulfate and water, there are also other reactions to form salts, such as displacement reactions.

Salt is divided into single salt and combined salt, single salt is divided into normal salt, acid salt, alkaline salt, combined salt is divided into Yanbo compound salt and complex salt. Among them, the acid salt contains hydrogen ions in addition to metal ions and acid ions, and the basic salt contains hydroxide ions in addition to metal ions and acid ions. When complex salts are dissolved in water, complex salt complexes of complex ions that are different from the original salts can be generated.

1. Salt refers to a class of compounds in which metal ions or ammonium ions are combined with acid ions or non-metal ions. Such as sodium chloride, calcium nitrate, ferrous sulfate, ammonium acetate, calcium sulfate, copper chloride and sodium acetate, etc.

2. Positive salts are composed of metal ions and non-metal ions, acid salts: composed of metal ions, hydrogen ion comics, acid ions and non-metal ions, basic salts are composed of metal ions, hydroxide ions, acid ions and non-metal ions, and double salts are composed of different metal ions and acid ions.

3. Generally speaking, salt is the product of metathesis reaction, salt reacts with salt to form new salt and new salt, salt and alkali react to form new salt and new alkali, salt and acid reaction to form new salt and new acid, such as sulfuric acid and sodium hydroxide to form sodium sulfate and water, sodium chloride and silver nitrate reaction to form silver chloride and sodium nitrate, etc. There are also other reactions that can produce salts, such as displacement reactions. The solution of soluble salts is conductive because there are ions that swim freely in the solution, so they can be used as electrolytes.

Hydrochloric acid is not only an important product of salt chemical industry, but also an important raw material for the production of silicon materials.

Sodium sulfate, sodium chloride.

Sodium sulfite, sodium thiosulfate, sodium nitrate, sodium carbonate.

Sodium phosphate monobasic and disodium hydrogen phosphate, sodium iodide.

Potassium sulfate, potassium chloride, potassium nitrate, potassium carbonate, potassium dichromate, potassium permanganate.

Potassium iodide, potassium dibasic phosphate, dipotassium phosphate.

Calcium carbonate, calcium sulfate, calcium nitrate, calcium chloride.

Magnesium sulfate, magnesium nitrate, magnesium chloride.

Barium nitrate, barium chloride.

Lead nitrate, aluminum nitrate, aluminum chloride, aluminum sulfate.

Mercury nitrate, mercuric chloride, silver nitrate, and the rest of the excessive metal salts are mainly sulfates, chlorides, and nitrates.

The compound SALI-, which consists of metal ions (or ammonium ions NH4+) and acid ions; lalin-;salini-;salino-〗

Salts containing hydrogen ions are called acid salts, such as: ammonium bicarbonate (NH4HCO3); Sodium bisulfate (NaHSO4); Potassium phosphate monobasic (KH2PO4).

Salts containing hydroxide ions are called basic salts, such as basic copper carbonate (Cu2OH2CO3).

Salts that do not contain hydroxide ions and hydrogen ions are called positive salts, such as: sodium chloride (NaCl); Sodium carbonate (Na2CO3).In addition, there are double salts (such as alum) and so on.