Analysis of the chemical properties of hydrogen chloride
The chemical formula of hydrogen chloride is: HCl. Hydrogen chloride does not react with water but is easily soluble in water, and it often exists in the air in the form of hydrochloric acid fumes.
Concentrated hydrochloric acid fumes in the air due to hydrogen chloride vapor. Easily soluble in ethanol and ether, but also soluble in many other organic substances. It is a colorless gas with pungent odor; melting point is -144.8°C, boiling point is -84.9°C, gas density is 1.628 g/L (0°C, 1 atmosphere), critical temperature is 51°C, critical pressure is 82 atmospheres; it is easily soluble in water, At 25°C and 1 atmosphere, 1 volume of water can dissolve 503 volumes of hydrogen chloride gas.
The chemistry of dry, high-purity hydrogen chloride is not very vivid. Alkali metals and alkaline earth metals can be incinerated in hydrogen chloride, and when sodium is incinerated, a bright yellow flame is declared.
The absorption and use of hydrogen chloride
A method of absorbing and using the special gas and waste gas hydrogen chloride generated in the production of chemical products. According to the technical plan provided by the present invention, the methods of absorbing and using the waste gas hydrogen chloride generated in the production of chemical products include: replacing water with alcohol to absorb the waste gas hydrogen chloride discharged from the production of chemical products; the general chemical formula of the alcohol is ROH, in between R is 1-8 carbon atoms; when the hydrogen chloride in the absorption kettle is dissolved in alcohol to reach fullness, put the full solution into a reaction kettle equipped with a condenser, and discharge it under normal pressure and at a temperature of 40～190℃ Hydrogen chloride; After the hydrogen chloride is discharged, the temperature of the solution in the reaction kettle is raised to 50-210℃, and the remaining alcohol in the solution is discharged under normal pressure; after the remaining alcohol is discharged, the remainder in the reaction kettle is neutralized with an alkaline substance When the pH is between 6.5 and 7.0, the sedimentation method is used for layering, the water is removed, and the distillation is performed to obtain the residue product. When the invention is used to absorb and use waste gas hydrogen chloride, environmental pollution can be reduced, and production costs can be reduced. Hydrogen chloride
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