Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
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Anhydrous hydrogen fluoride at a low temperature is a clear colorless liquid, boiling point of 19.4, a melting point of -83.37, density 1.008g / cm3 (25/4). The proportion of gas is 1.27 (34 ℃) (Air = 1), 0.987 specific gravity of the liquid at room temperature and room temperature into a smoke-like highly volatile aqueous solution at -30 when not frozen. Its chemical nature very lively, strong water absorption and strong corrosive and can react with alkali metals, oxides and silicates (glass can corrode and damage to other silicon-containing materials), etc., under certain conditions with free water mixed into hydrofluoric acid (when dissolved in water, intense heat and form hydrofluoric acid).

Hydrogen fluoride can form hydrofluoric acid when mixed with water. When people exposure to high concentrations of hydrogen fluoride can cause eye and respiratory tract irritation, severe cases of bronchitis, pneumonia, and even reflective of suffocation; also cause nose, pharynx, larynx chronic inflammation, severe cases may have nasal septum perforation; when the inhalation of high concentrations of hydrogen fluoride can cause bronchitis and pneumonia; absorption can produce systemic toxicity, it can also lead to skeletal fluorosis can cause damage.

Hydrofluoric acid is very dangerous. Hydrogen fluoride can penetrate the skin to the deep penetration, and the formation of necrotic ulcers, and difficult to cure. Fluorine ions into the blood or tissue calcium and magnesium ions in combination therewith, making it insoluble or sparingly soluble calcium fluoride and magnesium fluoride, a large quantity of blood vessel blockage, then direct, directly or indirectly affect the function of the central nervous system and cardiovascular system, because of this, it will rely on more than two ions play organ function loss, leading to hypocalcemia, hypomagnesemia syndrome, fluoride ions can also be combined to form a fluorine-hemoglobin and hemoglobin, inhibition of succinate dehydrogenase, resulting in oxygenation decline, affecting cell respiratory function. In addition, hydrofluoric acid can cause significant contact area burns, dehydration and tissue protein dissolved rapidly penetrate the stratum corneum, penetrate deep tissue, dissolve the cell membrane, causing tissue liquefaction, severe cases can be as deep periosteum and bone, bones become calcium fluoride, the formation of slow healing ulcers. Inhalation of high concentrations of vapor or percutaneous absorption can cause organizing pneumonia, pulmonary edema.