What are the common basic salts and what are basic salts

Basic copper carbonate, also known as malachite, is a precious mineral gemstone. The peacock green fine, amorphous powder decomposes into copper oxide, water and carbon dioxide when heated in air. Avoid acids in the material.

Insoluble in cold water and alcohol, decomposed in hot water, dissolved in acid to form the corresponding copper salt. It is dissolved in aqueous solution of Qing, ammonia, ammonium salt and alkali metal carbonate to form a complex of copper. When boiled in an alkali metal carbonate solution, brown copper oxide is formed.

Unstable to hydrogen sulfide. Heat to 200% to decompose black copper oxide, water (small droplets formed by condensation when cooled) and carbon dioxide. Unstable in hydrogen sulfide gas.

The solubility in water is.

It has dusty properties, and should avoid contact and inhalation with **, eyes, etc. Insoluble in water, soluble in ammonia water to form cup-ammonia ligands. Decomposes when heated to 220 °C.

The basic copper carbonate composed of 2 1 is a sky blue powdery crystal. If it is placed in the air for a long time, it absorbs moisture and releases part of carbon dioxide, which slowly becomes 1 1 type basic copper carbonate, which is insoluble in water, but soluble in ammonia and forms copper ammonia matching ions.

Basic aluminium chloride.

Basic aluminum chloride abbreviation (PAC) is black powder or granular appearance, can sterilize, deodorize, decolorize, fluoride, aluminum, chromium, phenol, degreasing, turbidity, heavy metal salts, radioactive pollutants, in the purification of various sewage, has a wide range of uses.

Basic aluminum chloride is a new type of inorganic polymer coagulant that was officially put into industrial production and application in the late 60s. It is made of industrial aluminum ash and activated bauxite as raw materials through refining and polymerization, and this product has high activity and has a good purification effect for industrial sewage, papermaking water and printing and dyeing water. It has a series of advantages such as low dosage, high purification efficiency and low cost.

Basic aluminum chloride can be used to purify industrial water, industrial wastewater, mining, oil field reinjection water, purification of papermaking, metallurgy, coal washing, leather and various chemical waste water treatment. It can also be used in papermaking, printing and dyeing, bleaching and dyeing, cement quick-setting agent, precision casting hardener, refractory binder, glycerin refining, sugar liquid refining, cloth wrinkle prevention, medicine, cosmetics and other industries, and wastewater can be recycled. In the oil refining industry, it is used for oil-water separation, and the effect is very good.

Basic magnesium chloride.

Basic magnesium chloride is a white powder with a special luster, which can be regarded as mg(oh)2·mgcl2. Insoluble in water and organic solvents such as alcohol and ether. It is named because it contains hydroxide ions.

It can react with acid and alkali at the same time to form MgCl2 or Mg(OH)2, which belongs to basic salts.

1. Easy to decompose when heated: mg(oh)cl == == mgo + hcl

2. Preparation method: basic magnesium chloride can be generated by incomplete hydrolysis of magnesium chloride: MgCl2 + H2O == == Mg(OH)Cl + HCl

or by Grignard reaction).

Basic salts include basic copper carbonate Cu2(OH)2CO3, basic magnesium chloride MG(OH)Cl, etc. Monobases cannot form basic salts, and only dibasic bases or polybases can form basic salts. Basic salts are salts that contain either hydroxyl or oxygen groups.

General composition: metal + OH- + acid roots. ”

Salts that can ionize hydrogen ions are usually products in which the hydrogen ions in the acid are partially neutralized, such as sodium bicarbonate, potassium bisulfate, etc.

An acidic salt solution can be acidic or alkaline, and its acidity and alkalinity depend on the strength of the tendency of the root of the acid formula to give or accept electrons, "giving" is stronger than "receiving", and the aqueous solution is acidic, such as sodium dihydrogen phosphate.

Otherwise, it is alkaline, such as sodium bicarbonate. Acid salts have a wide range of uses, sodium bicarbonate (also known as baking soda) is used in industry and daily life as a foaming agent and other ammonium bicarbonate can be used as fertilizer, biphosphate is the main component of fertilizer.

Judgment of acidity and alkalinity

Generally speaking, the acid salts of strong acids are acidic, the sodium salt (or potassium salt) of medium and strong acids is acidic, and the sodium salt or potassium salt (including all acid salts of weak acids) are alkaline.

Specific division: The aqueous solution is an acidic acid salt with a strong alkali and a strong acidic acid: such as NaHSO4, which is completely ionized in its aqueous solution, so the solution is acidic.

Acidic salts with strong acids and weak bases: salts formed from strong acids and weak bases: such as NH4HSO4, the solution is acidic.

The acidity of the solution is due to the ionization of HSO4-, and the degree of ionization of HSO4- is much greater than that of NH4+, and inhibits NH4+ hydrolysis to a certain extent, so do not think that acidity comes from ammonium hydrolysis.

Strong alkali and weak acid acid salt: the acid group is ionized and hydrolyzed, and the KA value needs to be checked to calculate, but the acid salt where the first hydrogen ion of medium and strong acid is replaced is basically acidic, and polyacids containing phenolic hydroxyl groups and carboxyl groups may not be compliant.

The aqueous solution is an alkaline acid salt: generally an acid salt with strong alkali and weak acid, such as: HCO3 - salt, HS - salt, because the "ionization" trend is less than the "hydrolysis" trend, so the solution is alkaline.

Sulfite, hypochlorite, chlorate, phosphate, silicate, carbonate, nitrate,

Basic saltsThe definition of is generated upon ionizationAnionIn addition to acid ions, there are hydroxide ions,CationsSalt of metal ion (or NH).

Classification of salt.

The explanation of the term basic salt is: in addition to the metal attack high cation (including ammonium ion) and acid ion, the molecule also contains hydroxide ion salt. Such as basic copper carbonate Cu2(OH)2CO3.

The explanation of the words of the basic salt hall is: in addition to metal cations (including ammonium ions) and acid ions, the molecule also contains hydroxide ions. Such as basic copper carbonate Cu2(OH)2CO3.

Pinyin is: jiǎn shì yán. The phonetic pronunciation is:

One by one . The structure is: alkali (left and right structure) formula (semi-enclosed structure) salt (upper and lower structure).

What is the specific explanation of basic salt, we will introduce it to you through the following aspects:

1. Citations and explanations [click here to view the details of the plan].

Salts containing hydroxides. Such as basic copper carbonate and so on.

2. Network Explanation.

The salts in the chemistry of basic salts are divided into single salts and combined salts, single salts are divided into normal salts, acid salts, and basic salts, and combined salts are divided into double salts and complex salts. Basic salts are defined as anions formed during ionization in addition to hydroxide ions, and cations are salts with metal ions (or NH4).

Idioms about alkaline salts.

Pinch the salt into the fire and hold one for the type of firewood, rice, oil and salt.

Words about alkaline salts.

Abide by the form of salt, into the fire, the work of containment, firewood, rice, oil and salt, formalism, angry frogs, can be fried, salt, snow, thousands of forms, and gradually decline, one is still the same.

Sentence formation on alkaline salt.

1. Basic zinc neocaprate;

2. The latter refers to the process of precipitation of gypsum, calcite, fluorite and hydroxides, oxides, acid salts and basic salts of certain heavy metal elements from polluted groundwater.

3. Basic zinc isononanoate;

4. Methods to improve the solubility and dissolution rate of neotame in water were emphatically introduced, such as neotame and acid compounding, neotame and other sweetener compounding, neotame and alkaline salt compounding, and neotame and metal ion compounding.

5. Zinc salt of basic isooctanoate;