-
Solubility of sulfites of the same metal.
With its carbonates.
The solubility is similar. Na2CO3 is soluble in water, so Na2SO3 is also soluble in water; K2CO3 is soluble in water, so K2SO3 is also soluble in water; (NH4)2CO3 is soluble in water, so (NH4)2SO3 is also soluble in water; BaCO3 is insoluble in water, so Baso3 is also insoluble in water; CaCO3 is insoluble in water, so CaSO3 is also insoluble in water; Ag2CO3 is insoluble in water, so Ag2SO3 is also insoluble in water; MgCO3 is slightly soluble in water, so MgSO3 is also slightly soluble in water; Wait a minute. Of course, this is because CO2 and SO2 do not undergo redox reactions.
, and other similar compounds they form, such as carbonates and sulfites, show a lot of similarities in their properties. Of course, we do not rule out exceptions.
-
Sulfites are insoluble in water.
There are three reactions, the first one is the most basic, as a weak salt, it can react with strong acids, such as Na2SO3+2HCl==2NaCl+H2O+SO2; Second, it is easy to have a double hydrolysis reaction with some metal ions, eg.
2alcl3+3na2so3+3h2o==2al(oh)3+6nacl+3so2;The third, as a +4-valent sulfite, has strong reducing properties, e.g., Na2SO3 + Cl2 + H2O = = Na2SO4 + 2HCl.
-
No. Sodium sulfite can be dissolved in water.
-
No, K, Na, NH4 are soluble, Ca, MG and other are slightly soluble, and most of the others are insoluble.
-
Sulfites have all the properties of carbonates, that is to say, those in carbonates that are insoluble, the corresponding sulfites are also insoluble.
-
Sulfites of potassium, sodium, and ammonium ions are soluble in water.
-
Based on the standard condition, the following sulfate salts are insoluble or slightly soluble.
Barium sulfate, white precipitate.
Bismuth sulfate, which itself is insoluble, but slowly hydrolyzes in water to the more insoluble basic thioneyl acid bismuth.
Calcium sulfate, white precipitate, slightly soluble.
Mercurous sulfate elimination group, white precipitate, slightly soluble.
Mercury sulfate, white, but in water is a yellow precipitate containing 2 crystalline waters.
Lead sulphate, white precipitate.
Strontium sulfate, light blue precipitate.
Antimony sulfate, insoluble, but hydrolyzed in water.
Silver sulfate, white precipitate, slightly soluble.
Finally, many rare earth salts are soluble at room temperature, and slightly insoluble at high temperature.
-
There are many such as barium sulfate, which is often used as a reaction for ion detection.
Calcium sulfate, silver sulfate, lead sulfate and many more.
-
1. Sulfite is an oxygenate, its anhydride is sulfur dioxide, and sulfites usually do not exist in surface water.
2. In sulfurous acid and sulfite, there is both oxidation and reduction, but their reductionability is the main one, and sulfite has stronger reducing property than sulfurous acid;
3. In addition to alkali metals and ammonium, most of the other sulfites are insoluble.
-
Question 1: Will sulfuric acid precipitate after dissolving in water It will not precipitate. Sulfuric acid is soluble in water and can be dissolved when mixed in any ratio.
Question 2: Why is sulfuric acid dissolved in water exothermic When sulfuric acid is dissolved in water, on the one hand, sulfuric acid molecules are diffused in water, and in this physical process, a certain amount of heat must be absorbed; On the other hand, a chemical process occurs, that is, there is a strong chemical combination between sulfuric acid molecules and water molecules to generate hydronium ions.
H2SO4+H2O= H3O++HSO4-HSO4-+H2O = H3O++SO42-H2SO4+2H2O =2H3O++SO42-sulfuric acid and water to form quite stable hydrates, such as H2SO4 H2O, H2SO4 2H2O, H2SO4 4H2O, etc. (these hydrates can be precipitated from the solution in crystal form at low temperatures).Since a large amount of heat is released when hydronium ions and various hydrates are formed (1mol of sulfuric acid is mixed with excess water at 20°C, the heat of dissolution is kj), and more heat is released than it is absorbed, so a large amount of heat is released when concentrated sulfuric acid is diluted.
-
Sulphur trioxide is easily soluble in water.
Sulfur trioxide is easy to react with water to form sulfuric acid, when there is more water, it produces sulfuric acid solution, and when there is less water, it generates a mixture of sulfuric acid and sulfur trioxide. Sulfur trioxide reacts with water to form sulfuric acid, which can fade the magenta dissolved precursor liquid, and the melting point of sulfur trioxide is liquid at room temperature.
Sulfur trioxide, also known as sulfuric anhydride, is an inorganic compound with the chemical formula SO3, which is a colorless and easily sublimated solid with three states of matter. - SO3 filamentous fibrous and needle-like, density, melting point; SO3 asbestos fibrous, melting point, sublimation at 50; SO3 glassy, melting point, boiling point.
It dissolves in water and reacts with water to form sulfuric acid and release a large amount of heat. Dissolved in concentrated sulfuric acid to form oleum, it is an acidic oxide, which can react with alkaline oxides to form salts. Sulfur trioxide is a strong oxidizing agent, which can only oxidize sulfur, phosphorus, iron, zinc, bromide, iodide, etc. at high temperatures.
SO3 is solid at standard condition (1atm, 0) and liquid at room temperature and pressure.
Sulfur trioxide is a non-polar molecule. Its gaseous form is a serious pollutant and is one of the main forms of acid rain.
At room temperature, it is a colorless transparent oily liquid or solid (depending on the specific crystal form), and the standard condition is solid, with a strong thorny and wide odor. Strong oxidant, can be reduced by sulfur, phosphorus and carbon. Compared with thio-code acid and oleum, the dehydration effect is stronger.
It is less corrosive to metals than sulfuric acid and fuming nitric acid.
-
Hello, I am happy to serve you and give you the following answers: Sulfurous acid is stored in water only in the form of dissolved and suspended silver. The dissolved state refers to the presence of sulfurous acid in the form of dissolution in water, and the suspended state refers to the presence of sulfurous acid in the form of suspension in the water.
The problem of sulfurous acid in water is mainly due to the high concentration of sulfurous acid in the water, which leads to the contamination of the water quality in the water. Sulfurous acid pollution is mainly due to industrial wastewater and agricultural pollution, as well as excessive discharge of organic matter and sulfates from water bodies. The methods and practices to solve sulfurous acid contamination are as follows:
1.Strengthen the control of pollution sources, strengthen the supervision of industrial wastewater and agricultural pollution, and reduce the discharge of pollution sources. 2.
Strengthen the control of migratory organic matter and sulfate in water bodies, and take effective control measures to reduce the discharge of organic matter and sulfate in water bodies. 3.Strengthen water quality monitoring, regularly monitor the concentration of sulfurous acid in water bodies, find problems in time, and take effective measures.
4.Take effective purification measures, such as activated carbon adsorption, precipitation, oxidation, etc., to effectively purify sulfurous acid in the water body. Personal Tips:
Sulfurous acid is one of the main pollutants of water pollution, it is necessary to strengthen the control of pollution sources, strengthen the control of organic matter and sulfate in the water body, regularly monitor the concentration of sulfurous acid in the water body, and take effective purification measures to protect water quality.
Sulphatewood pulp.
Sulfur rolling void broad acid pulp is employed. >>>More
When judging sulfate and sulfite, if dilute nitric acid is used, barium sulfite precipitation often occurs insoluble in dilute nitric acid, because nitric acid is a strong oxidant, which will oxidize barium sulfite to barium sulfate, thereby interfering with the detection of sulfate ions. >>>More
Sea salt does not reduce nitrite, the main components of sea salt are sodium chloride and sodium calcide, and the main component of nitrite is sodium nitrate, nitrite is an inorganic chemical, which also belongs to sodium and cannot be decomposed. >>>More
Sodium sulfate does not react with any substances to form yellow substances.
Preferably greater than 500 meters. In addition, environmental protection measures are essential.