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What is the chemical structure of Barium Bis [4- [ (2-Hydroxy-1-Naphthyl) Azo] Benzenesulphonate]
The chemical structure of the compounds involved in barium and bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate] is relatively complex. In this compound, the "bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate]" part is based on benzenesulfonate as the basic structural unit. At position 4 of the benzene ring, a substituent connected by 2-hydroxy-1-naphthyl through azo (-N = N-) is connected. The word "double" indicates the existence of two such structural units. Barium ions (Ba ² ²) usually combine with these negatively charged benzenesulfonates to form stable compounds through ionic bonds. This structure gives the compound specific chemical and physical properties, which may exhibit unique application characteristics in many fields.
What are the main uses of Barium Bis [4- [ (2-Hydroxy-1-Naphthyl) Azo] Benzenesulphonate]
Barium-bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate], this compound has important uses in many fields.
In the field of analytical chemistry, it can be used as a special color reagent. Because the compound has a specific molecular structure, it can react specifically with certain metal ions to generate complexes with unique colors. By observing the change of color and measuring the absorbance, it is possible to accurately carry out qualitative and quantitative analysis of specific metal ions. For example, in the detection of the content of specific metal ions in environmental water samples, it can be used to quickly and accurately determine the concentration of metal ions by virtue of its color reaction with metal ions, which can help the efficient development of environmental monitoring and pollution assessment work.
In the field of materials science, it also has outstanding performance. It can be integrated into specific materials as a functional additive to improve the optical properties of materials. For example, adding this substance to some polymer materials allows the material to produce unique absorption and emission characteristics for specific wavelengths of light, which makes it possible to prepare materials with special optical properties, such as optical sensors, luminescent materials, etc., greatly expanding the application range of materials in optoelectronic devices.
In the field of biomedical research, it also shows certain potential. Due to its ability to specifically recognize and bind certain biomolecules, it can be developed for the detection of biomarkers. By marking specific biomolecules in organisms, it can achieve in-depth exploration of physiological processes, disease occurrence and development mechanisms in organisms, and provide strong technical support for early diagnosis and treatment of diseases.
What are the physical properties of Barium Bis [4- [ (2-Hydroxy-1-Naphthyl) Azo] Benzenesulphonate]
The physical properties of barium-bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate] are as follows:
This compound appears or is a solid of a specific color, and its solubility may be unique in some specific solvents. In common organic solvents, its solubility varies, or it is slightly soluble in some organic solvents, and its solubility in water is also different, or it is in a limited solubility state.
In terms of stability, it can maintain a relatively stable structure under normal temperature and general environmental conditions. However, if it encounters specific chemical reagents, or is exposed to extreme environments such as high temperature and high humidity, its chemical structure may change, triggering decomposition or other chemical reactions.
From the perspective of optical properties, due to the existence of conjugated systems in molecules, or the absorption spectrum characteristics in a specific wavelength range, or can be used for optical correlation detection and analysis.
Furthermore, the density of this compound may be similar to that of common organic salts, and its density value will affect its dispersion and precipitation behavior in different media. In practical application scenarios, these physical properties play a crucial role in the way and effect of their use in various reactions and material preparation processes, and need to be carefully considered and utilized.
What are the preparation methods of Barium Bis [4- [ (2-Hydroxy-1-Naphthyl) Azo] Benzenesulphonate]
To prepare [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate] of barium, there are two methods. First, start with 2-hydroxy-1-naphthalamine, after diazotization, coupling with benzenesulfonic acid, and then reacting with barium salts to obtain this product. First dissolve dilute acid with 2-hydroxy-1-naphthalamine, add sodium nitrite under cooling to form a diazo salt. Another solution of sodium benzenesulfonate is prepared, the pH is adjusted, slowly added to the diazo salt, and stirred for coupling. After the reaction is completed, add a barium salt, such as barium chloride, precipitate [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate] of barium, filter, wash, and dry to obtain.
Second, with 1-naphthol as a group. 1-Naphthol is sulfonated to obtain 1-naphthol-4-sulfonic acid, and then reacts with sodium nitrite and sulfuric acid, diazotization. After coupling with aniline, the product reacts with barium salts. 1-Naphthol is co-heated with concentrated sulfuric acid, cooled, poured into ice water, and precipitated 1-naphthol-4-sulfonic acid. Take sulfuric acid, sodium nitrite, diazotization. Aniline dissolves dilute acid, adds to diazo solution, coupling. Finally, add barium salt to obtain [4- [ (2-hydroxy-1-naphthyl) azo] benzene sulfonate] of barium, and separate and purify the finished product. The operation should pay attention to the reaction temperature, pH and material ratio to achieve yield and purity.
What are the precautions for using Barium Bis [4- [ (2-Hydroxy-1-Naphthyl) Azo] Benzenesulphonate]
When applying barium and bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate], pay attention to many matters. Both are safe at the time of use. Bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate] or contains potentially harmful chemical structures, and appropriate protective equipment such as gloves, goggles and protective clothing is required during operation to prevent it from coming into contact with the skin and eyes, and to avoid inhaling its dust or volatiles, which may be harmful to health.
Furthermore, pay attention to the chemical properties of the two. Barium is an active metal with specific chemical reactivity. When mixing or reacting with bis [4- [ (2-hydroxy-1-naphthyl) azo] benzenesulfonate], the reaction conditions, such as temperature, pH and reaction time, need to be carefully observed. If the temperature is too high or too low, it may cause the reaction to deviate from the expected, or make the product impure, or affect the reaction rate. The change of pH may also have a significant effect on the reaction process and product formation.
Repeat, accurately measure the dosage of both. Improper dosage not only wastes raw materials, but also causes an unbalanced reaction. Too little dosage cannot achieve the expected reaction effect; too much may lead to side reactions, and it is difficult to separate and purify the product.
In addition, post-reaction treatment should not be ignored. Proper disposal of reaction residues and waste, in accordance with environmental regulations, because it may contain substances harmful to the environment, improper discharge will pollute soil, water sources and air. During the entire use process, carefully record various operations and data for subsequent analysis and backtracking. If there is a problem, it can also be found and solved accordingly. In this way, the purpose of safe, efficient and compliance can be achieved.