Anhydrous copper sulphate, the difference between anhydrous copper sulphate and copper sulphate pent

Anhydrous copper sulphate Molecular Formula: CuSO4

Anhydrous copper sulphate is a white or off-white powder. The solution is acidic. Soluble in water and dilute ethanol but insoluble in absolute ethanol. It is easy to deliquescent in humid air and has strong hygroscopicity. Black copper oxide is formed at high temperatures.

And one more thing to add to you, to learn to expand your knowledge.

Copper sulphate pentahydrate.

Copper sulfate pentahydrate, also known as copper sulfate crystals. Commonly known as blue alum, bile alum or copper alum, the chemical formula is CuSO4·5H2O, which is a blue crystal.

In the first chapter of the chemistry book, the grinding of blue alum is introduced, and its physical properties remain unchanged, and I will introduce you to one more.

Copper sulfate monohydrate.

It is prepared by heating copper sulfate pentahydrate to 110 and removing 4 crystalline water.

White crystals. Molecular formula: CuSO4·H2O

The above is a personal creation.

What I'm going to tell you is that copper sulfate pentahydrate and copper sulfate monohydrate are both crystalline hydrates, both of which are pure.

It is CuSO4, and copper sulfate pentahydrate is CuSO4·5H2O

CuSO4, a white powder, can detect the presence of water.

The differences between anhydrous copper sulphate and copper sulphate pentahydrate are as follows:

Difference 1, the color is different.

Anhydrous copper sulphate is white or off-white powder, and copper sulphate pentahydrate is blue.

Difference 2: The chemical formula is different.

Anhydrous copper sulfate is the chemical formula CuSO4, and copper sulfate pentahydrate is CuSO4·5H2O.

Difference 3: The structural stability is different.

The structural stability of anhydrous copper sulfate is not as good as that of copper sulfate pentahydrate.

The introduction of copper sulfate is as follows:

Copper sulphate is an inorganic compound with the chemical formula cuso, and anhydrous copper sulphate is a white or off-white powder.

Copper sulphate is both a fertilizer and a commonly used fungicide. Bordeaux liquid, copper soap liquid, and copper ammonium preparations are made of copper sulfate with lime milk, soap, and ammonium bicarbonate.

The introduction of copper sulfate pentahydrate is as follows:

The physical and chemical properties of copper sulfate pentahydrate are transparent dark blue crystals or powders, with a solubility of 316 grams in 0 water, insoluble in ethanol, almost insoluble in most other organic solvents. It is ruby green in glycerin, slowly weathered in air, lost two molecules of crystal water (30) by heating, and lost water at 110 to become white hydrate (Cus04H20).

When it contains impurities, it is yellow or green, and has no odor. This product is very corrosive to iron. Copper sulphate is both a fertilizer and a commonly used fungicide.

Bordeaux liquid, copper soap liquid, and copper ammonium preparations are made of copper sulfate, quicklime, soap, and ammonium bicarbonate.

Copper sulfate (cupric sulfate) is an inorganic compound with the chemical formula CuSO4. It is a white or off-white powder, and the aqueous solution is weakly acidic and blue. When crystallized from an aqueous solution, blue copper sulfate pentahydrate (CuSO4·5H2O, also known as bile alum) is generated, and this principle can be used to test the presence of water.

It decomposes after losing crystal water after being heated, and is very stable at room temperature and pressure, without deliquescent, and will gradually weathered in dry air. Copper sulphate is an important raw material for the preparation of other copper-containing compounds. Bordeaux liquid can be obtained by mixing with lime milk, which is used as a fungicide.

It is also used as an electrolyte for electrolytic refining of copper.

Copper sulphate is divided into anhydrous and copper sulphate pentahydrate, which have the same pronunciation. Anhydrous means no crystal water, and five water means five crystal water. When copper sulfate is dissolved in water, five crystalline waters are lost and ionized into copper ions and sulfates.

Anhydrous copper sulphate is a white powder that turns blue when exposed to water. Copper sulfate pentahydrate, commonly known as blue alum, bile alum, that is, copper sulfate crystals, as the name suggests, is blue in itself. No matter what kind of solid, as long as it is soluble in water, it becomes copper ions and sulfate ions.

Of course, the solution is blue, and the reason for the blue color is that copper ions and water form ligand ions - copper ions tetrahydrate.

It is copper sulphate without crystalline water: cuso4 It is a white solid and belongs to the salt group.

Generally, copper sulfate crystals have 5 crystalline water, which is called bile alum or blue alum: CuSO4·5H2O.

Anhydrous copper sulphate usually refers to copper sulphate, which does not contain crystalline water, and its appearance is usually a powder ink, rather than a transparent crystal.

Anhydrous copper sulfate is a white crystal, belonging to salt, it turns blue when exposed to water, it is commonly used in chemistry to test the existence of water vapor, it is soluble in water, the aqueous solution is blue, and the chemical formula is CuSO4.

Anhydrous copper sulphate, white powder, CuSO4

Hydrated copper sulfate, blue crystal, anhydrous copper sulfate is white or off-white powder. The solution is acidic, and the dust is very pungent. Soluble in water and dilute ethanol but insoluble in absolute ethanol. It is easy to deliquescent in humid air and forms black copper oxide at high temperatures.

Anhydrous copper sulphate chemical formula CuSO4

Copper sulfate, also known as anhydrous copper sulfate, is a white or off-white powder, which is easy to absorb water and turn blue. The solution is acidic, and the dust is very pungent. Soluble in water and dilute ethanol but insoluble in absolute ethanol. It is easy to deliquescent in humid air and forms black copper oxide at high temperatures.

CuSO4 is a strong acid and weak alkali salt, due to the weakly acidic nature of the hydrolyzed solution. It is very absorbent, and reacts to form blue copper sulfate pentahydrate (commonly known as bile alum or blue alum) after water absorption. The aqueous solution is blue in color.

The copper sulfate solution is concentrated and crystallized to obtain copper sulfate blue crystals of pentahydrate, commonly known as bile alum, copper alum or blue alum. When gallium is heated at high temperature, it can be decomposed into black copper oxide, sulfur dioxide and oxygen. All three are toxic and soluble in water and insoluble in ethanol.

Under the action of air, copper reacts with concentrated sulfuric acid or dissolves copper oxide in dilute sulfuric acid, and then evaporates and crystallizes. used as ammonia catalyst, cotton silk mordant, wood preservative, agricultural insecticide, water quality fungicide, medical vomiting agent: as a raw material for electroplating, dyes and leather industry, anhydrous copper sulfate is used as a dehydrating agent and gas desiccant.

Copper sulphate is a heavy metal salt and is toxic. If ingested, a large amount of protein-rich foods such as milk and egg whites should be consumed immediately, or EDTA calcium and sodium salt should be used for detoxification.

Application: 1. Preparation of Bordeaux liquid;

2. Protein detection by biuret;

The composition of biuret reagent A is an aqueous solution with a mass fraction of sodium hydroxide in g ml; The composition of biuret reagent B is an aqueous solution of copper sulfate with a mass fraction of g ml. The biuret reagent can verify the presence of proteins.

3. Inspect the water generated by chemical reactions;

Anhydrous copper sulfate has strong water absorption, anhydrous copper sulfate solid from white to blue when exposed to water, to generate copper sulfate pentahydrate (CuSO4·5H2O), which can detect the existence or generation of chemical reaction water and absorb water vapor.

4. It is used for electrolytic refining of copper.

As follows: anhydrous copper sulfate CuSO4, copper sulfate pentahydrate CuSO4·5H2O

Anhydrous copper sulfate is an inorganic compound, the chemical formula CuSO4, is a white or off-white powder, the aqueous solution is weakly acidic, and it is blue.

Anhydrous copper sulfate is a white solid, soluble in water, the aqueous solution is blue, the crystal precipitated from the copper sulfate solution is blue, commonly known as bile alum living blue alum, containing crystal water, the chemical formula is, bile alum can lose crystal water when heated, becoming white cuso4.

The chemical formula of anhydrous copper sulfate CuSO4 is a white powder, the relative density is, and the solubility in water at 25 is insoluble in ethanol and ether, soluble in water, and the aqueous solution is blue, which is a strong acid and weak alkali salt, and is weakly acidic due to the hydrolyzed solution.

Concentrate and crystallize the copper sulfate solution to obtain copper sulfate blue crystals of pentahydrate, commonly known as bile alum, copper alum or blue alum, the relative density is, bile alum is very stable at room temperature and pressure, not deliquescent, it will gradually weathered in dry air, and it will lose two molecule crystal water when heated to 45, and lose all crystal water to become anhydrous at 150.

The role of anhydrous copper sulphate:

1. It is used to make other feed salts.

Such as cuprous chloride, copper chloride, copper pyrophosphate, cuprous oxide, copper acetate, copper carbonate, etc., dyes and pigments industry are used to manufacture copper-containing monoazo dyes such as reactive brilliant blue, reactive violet, etc.

2. Copper sulfate solution analysis reagent.

Several chemical analyses require anhydrous copper sulfate, which is used in the Filin reagent and Ban's reagent to detect reducing sugars, in the reaction, divalent copper ions are reduced to monovalent insoluble red precipitated cuprous oxide, anhydrous copper sulfate can also be used in biurea reagent for the detection of proteins.

3. Organic synthesis of copper sulfate solution Copper sulfate can be used for organic synthesis.

Anhydrous salts are used to catalyze the transacetal reaction, anhydrous salts react with potassium permanganate to form an oxidizing agent for the conversion of primary alcohols, and are used in the organic industry as catalysts for the synthesis of spices and dye intermediates, and polymerization inhibitors for methyl methacrylate.

4. It is used to kill fungi.

Mixed with lime water to form Bordeaux liquid, as a fungicide, used to control fungi on lemon, grape and other crops, because copper ions are toxic to fish, the dosage must be strictly controlled, in addition, aquaculture is also used as the main raw material for feed additives trace element copper.

Anhydrous copper sulphate is mainly composed of the following effects:

1. Preparation of Bordeaux liquid;

2. Protein detection by biuret;

3. Inspect the water generated by chemical reactions; Slag stall let.

4. It is used for electrolytic refining of copper.

5. It is used as an analytical reagent, such as Philin reagent for the identification of reducing sugar and solution B for the identification of protein in biology, but it is usually prepared and used;

6. It is used as a food-grade chelating agent and clarifier in the production process of preserved eggs and wine.