Hydrogen fluoride is a colorless gas; melting point -83.1 ° C, boiling point 19.54 ° C, gas density 0.991 g / l. At 80 ° C, an association (HF) n is formed due to the presence of hydrogen bonds between molecules. Anhydrous hydrogen fluoride has a strong acidity, only 100% sulfuric acid can exceed it. Less active, when there is a small amount of water vapor, it shows a higher chemical activity. Liquid hydrogen fluoride has a high dielectric constant, is an excellent solvent that dissolves many inorganic and organic compounds and is an important chemical product in industry. Hydrogen fluoride and its aqueous solution are toxic, easy to make bones, teeth deformed, hydrofluoric acid can be through the skin by the mucous membrane, respiratory tract and gastrointestinal absorption, poisoning should be immediately after the emergency treatment, and sent to medical treatment.
On the direct injection of fluoride, there is no ready-made method.
Tengzhou City, the vast chromatographic equipment Technology Co., Ltd., advancing with the times to scientific development as a guide, under the leadership of Wang Xiaoying manager, relying on Xiangying Institute of Analytical Technology, Institute of Chromatography, analysis and testing center, three scientific research units , After a lot of practice, developed a dedicated column for the analysis of hydrogen chloride, HH-HF, the results were satisfactory.
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