What color is copper sulfate solution

When copper sulfate is dissolved in water, it will form a lake blue color, which is very beautiful. The reason for this color is mainly due to the metal root ions. Sodium ions themselves are colorless, but divalent copper ions will appear blue. Whether it is copper sulfate or copper hydroxide, they are blue. Copper sulfate plays an important role in many fields. For example, it is often used as an analytical reagent and as an emetic in the medical field.

What color is copper sulfate solution?

Copper sulfate is divided into pentahydrate and copper sulfate with water of crystallization, and anhydrous copper sulfate without water of crystallization. The former is blue crystals and the latter is white powder. The two can be converted into each other, CuSO4.5H2O----CuSO4+5H2O, under the condition of heating. The copper sulfate aqueous solution formed when copper sulfate dissolves in water is lake blue, which is very beautiful. See solution.

The colors are all due to the metal ions inside. Sodium ions are colorless. Divalent copper ions are blue, so copper sulfate and copper hydroxide are both blue. Copper sulfate is an important raw material for preparing other copper-containing compounds. Mixed with lime milk, it produces Bordeaux mixture, which is used as a fungicide. It is also used as electrolyte in electrolytic refining of copper.

Copper Sulfate Uses

Used as analytical reagents, for example, it can be used in biology to prepare the B solution of Fehling's reagent for identifying reducing sugars and the biuret reagent for identifying proteins, but it is usually prepared and used immediately; used as food-grade chelating agent and clarifier, used in the production process of preserved eggs and wine; industrial field. It is used to manufacture other copper salts such as cuprous chloride, cupric chloride, copper pyrophosphate, cuprous oxide, cupric acetate, cupric carbonate, copper monoazo dyes such as reactive brilliant blue and reactive violet; in the coating industry, it is used to produce antifouling paint for ship bottoms; in the electroplating industry, it is used as the main salt for full-bright acid copper plating and a copper ion additive; in the printing and dyeing industry, it is used as a mordant and an oxygen aid for fine dyeing; in the organic industry, it is used as a catalyst for the synthesis of fragrances and dye intermediates, and an inhibitor for methyl methacrylate. Anhydrous salts are used to catalyze transacetalization reactions. The anhydrous salt reacts with potassium permanganate to form an oxidizing agent for the conversion of primary alcohols.

In the agricultural field, it is mixed with lime water to form Bordeaux mixture, which is used as a fungicide to control fungi on crops and prevent rot of fruits. Since copper ions are toxic to fish, the dosage must be strictly controlled. It is also used as the main raw material of trace element copper in feed additives in the aquaculture industry; and as a dehydrating agent for alcohols and organic compounds. Gas desiccant. In chemistry education, copper sulfate is often included in children's chemical experiment reagents for use in crystal formation experiments and copper electroplating experiments. Because of its toxicity, it is not recommended for use by young children. Copper sulfate can also be used to demonstrate the process of crystal dehydration and weathering and the acquisition of crystal water. In the junior high school experimental test, the law of conservation of mass was verified using the substitution reaction between copper sulfate and iron. It can also produce sulfuric acid. Used as an emetic in the medical field

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