1.251 ☌ at 1.013 hPa Flash point Not applicable Evaporation rate No data available Flammability (solid, gas) Upper/lower flammability or explosive limits No data available No data available Vapour pressure No data available Vapour density No data available Density 4,115 g/mL at 25 ☌ - lit. Odour Threshold No data available d) pH 6,5 - 7,5 at 152 g/l at 20 ☌ Melting point/freezing point Initial boiling point and boiling range Melting point/range: 682 ☌ - lit.Information on basic physicochemical properties Show this material safety data sheet to the doctor in attendance. Conditions such as hypocalcemia, hypomagnesemia and cardiac arrhythmias should be monitored for, since they can occur after exposure.First aiders need to protect themselves. Prevention of absorption of the fluoride ion in cases of ingestion can be obtained by giving milk, chewable calcium carbonate tablets or Milk of Magnesia to conscious victims. Absorption can readily occur through the subungual areas and should be considered when undergoing decontamination. More serious skin exposures may require subcutaneous calcium gluconate except for digital areas unless the physician is experienced in this technique, due to the potential for tissue injury from increased pressure. Skin exposures can be treated with a 2.5% calcium gluconate gel repeated until burning ceases. Treatment should be directed toward binding the fluoride ion as well as the effects of exposure. After decontamination with water, further damage can occur due to penetration/absorption of the fluoride ion. Symptoms may be delayed up to 24 hours depending on the concentration of HF. Hydrofluoric (HF) acid burns require immediate and specialized first aid and medical treatment.
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