Zinc acetate, dihydrate chemical properties of what is

Zinc (Zinc) and zinc acetate dihydrate (acetate, dihydrate) are both chemical substances with different properties.

Zinc is a common metal element, with a silver-white luster and a slightly brittle texture. Its activity is quite high, and it is prone to zinc oxide film in the air, which can prevent further oxidation. In case of strong acid, zinc can react rapidly to release hydrogen gas. If it interacts with dilute sulfuric acid, it appears that zinc sulfate is formed and hydrogen escapes. This reaction is often used in the laboratory to produce hydrogen gas.

Zinc acetate dihydrate, which is colorless and transparent crystals or white particles. It is easily soluble in water, and its aqueous solution is weakly acidic, which is due to the hydrolysis of acetate ions. When heated, the crystalline water will gradually lose, and finally anhydrous zinc acetate can be obtained. It plays a great role in the field of organic synthesis and is often used as a catalyst to help many organic reactions proceed smoothly. In the printing and dyeing industry, it can be used as a mordant to help dyes better adhere to fabrics.

Compared with the two, zinc is a elemental metal with active chemical properties and involves oxidation and reduction reactions; zinc acetate dihydrate is a salt containing crystalline water and participates in many reactions in the form of ions in solution. The chemical properties of the two vary due to differences in structure and composition.

Zinc acetate, dihydrate in which areas have applications

Zinc and zinc acetate dihydrate are useful in many fields. In the context of chemical experiments, it is often used as a reagent. Due to its unique properties, when synthesizing specific compounds, it can be used as a source of zinc, and the preparation of the target product can be achieved through delicate chemical reactions. For example, in some organic synthesis reactions, zinc atoms can be precisely introduced to shape the unique structure of the compound, helping chemists explore the characteristics and functions of novel substances.

In the field of materials science, it also has outstanding performance. It can be used as a precursor, processed by special processes, and converted into materials with excellent performance. For example, when preparing thin film materials with specific electrical and optical properties, using them as starting materials, through careful regulation of reaction conditions, materials that meet specific needs can be prepared, which can be used in the manufacture of electronic devices, optical components, etc., and greatly improve the performance of related devices.

In the field of industrial production, it also plays an important role. In the electroplating industry, it may be used to improve the quality of the coating, so that the metal surface forms a uniform and dense zinc coating, enhancing the corrosion resistance of metals and prolonging the service life of metal products. In the production of pigments, it participates in the pigment synthesis process, giving pigments unique color and stability, and is widely used in coatings, inks and other industries to improve the appearance and quality of products.

In the agricultural field, it also has potential value. Appropriate application of fertilizers containing zinc and zinc acetate dihydrate can supplement soil zinc to meet plant growth needs. Zinc is of great significance to many physiological processes of plants, such as participating in photosynthesis, enzyme synthesis, etc., helping plants thrive, enhancing plant disease resistance, and improving crop yield and quality.

Zinc acetate, dihydrate what is the preparation method

To prepare zinc acetate dihydrate, you can follow the following method. First take the zinc particles, wash and dry them to remove impurities on the surface. Prepare an appropriate amount of acetic acid solution, the concentration should be moderate. The clean zinc particles are slowly placed in the acetic acid solution. At this time, the two will react. The chemical reaction equation is: $Zn + 2CH_ {3} COOH\ longrightarrow Zn (CH_ {3} COO) _ {2} + H_ {2}\ uparrow $. When

reacts, it can be seen that there are bubbles escaping from the solution, which is hydrogen gas. The reaction process needs to be stirred to make the reaction more complete and rapid. When the zinc particles are almost completely dissolved, the reaction is coming to an end.

Then, the resulting solution is evaporated and concentrated. Heat the solution over low heat to allow the water to evaporate slowly. This process needs to be carefully observed. Do not overheat to prevent the solution from splashing out. As the water evaporates, the concentration of the solution gradually increases, and when a crystalline film appears, stop heating.

Let the resulting solution stand and allow it to cool and crystallize naturally. During the cooling process, the crystals of zinc acetate dihydrate will gradually precipitate.

When the crystallization is complete, use a Brinell funnel and a suction filter to separate the crystals. After that, wash the crystals with an appropriate amount of cold water or an organic solvent to remove impurities attached to the crystal surface.

Finally, the washed crystals are dried in a dryer to obtain a pure zinc acetate dihydrate. During the operation, it is necessary to exercise caution and pay attention to safety to ensure the purity and yield of the product.

Zinc acetate, dihydrate storage conditions

Zinc (Zinc) and zinc acetate dihydrate (acetate, dihydrate) are essential for their storage, which is related to the storage and use of the material.

Cover zinc acetate dihydrate, which is active in nature and susceptible to all kinds of external disturbances. The first to bear the brunt is the problem of humidity. If this substance is in a humid place, water vapor is easy to invade, causing its crystal structure to disintegrate, and the hydration state to be chaotic, or it may be turned into a solution, damaging its inherent quality. Therefore, it is necessary to choose a dry place to hide it, and keep it away from wet sources, such as the quiet dampness of the cellar and the corner near the water, which is not a good place.

Temperature is also critical. Extremely hot temperatures can intensify the movement of zinc acetate dihydrate molecules, causing them to decompose or undergo other chemical changes; in severe cold, although there may be no immediate damage, repeated freezing and thawing can also break its structure. It is the most suitable place at room temperature and stable, about 20 to 25 degrees Celsius, which can ensure its safety.

Also need to avoid direct light. Light has energy and can cause photochemical reactions. Zinc acetate dihydrate is irradiated by light, or its internal chemical bonds are broken, generating new substances and losing its original appearance. Hiding in a dark room or storing it in a light-shielding device can avoid this worry.

Furthermore, mixing with other things is also a big taboo. Due to its chemical properties, or reacts with other substances, if it encounters acids, alkalis, etc., it can cause its qualitative change. It must be stored alone in the purifier, and the material of the container should also be carefully selected. The genus of glass and ceramics can be commonly used if there is no special reaction. However, metal utensils are afraid of chemical reactions and should be avoided.

As for zinc, although it is relatively stable, it is also afraid of wet rust. Place it in a dry place, prevent contact with water, and do not coexist with strong oxidizing substances, so as not to be oxidized and damage its purity and performance. In this way, observe the general principles of storage, so that zinc and zinc acetate dihydrate can be stored for a long time for future use.

Zinc acetate, dihydrate on the human body what effect

Zinc (Zinc) and zinc acetate dihydrate (acetate, dihydrate), if accidentally exposed to the human body, the harm is different.

Zinc, although an essential trace element for the human body, but if excessive intake, there are also drawbacks. Its gas compounds or dust enter the body, bearing the brunt of affecting the respiratory system, causing cough, shortness of breath, long-term or causing pneumoconiosis. Entering the eyes, can cause redness, swelling and pain in the eyes. If excessive oral intake, gastrointestinal involvement, vomiting, abdominal pain, diarrhea are common, and in severe cases disrupt the electrolyte balance in the body, endangering life.

Zinc acetate dihydrate, irritating. Skin contact can cause redness, swelling, itching, rash, especially in people with sensitive skin. Inhalation of its dust or smoke can irritate the respiratory tract, causing coughing, asthma, breathing difficulties, long-term exposure, and threatening lung health. Oral ingestion can damage the digestive tract, causing nausea, vomiting, abdominal pain, and in severe cases erode the gastrointestinal mucosa, causing bleeding and ulcers.

Therefore, when exposed to both, it is necessary to take good protection. Once accidentally exposed, deal with it immediately according to regulations, and seek medical consultation if necessary to protect your health.