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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Hydrofluoric acid burns human tissue. Burns from more concentrated solutions (> 50%) are severe and extremely painful. The initial signs are redness, oedema and blistering. Burns from more dilute solutions may not necessarily cause pain immediately. Nevertheless the dilute solutions are still dangerous because they penetrate deeply into the body causing delayed injury and symptoms due to local cellular destruction and systemic toxicity. A burn from a solution in the range 20 – 50% may take up to eight hours to become apparent. Burns to the fingers and nail beds may leave the overlying nail intact. Thus there could be a significant delay in recognising that the casualty has been burned. The severity and rapidity of onset of signs and symptoms depends on the concentration, duration of exposure, and the penetrability of the exposed tissue.

As users you need to be aware of this, and to seek advice if you believe that you could have had Hydrofluoric acid solution on your skin. HF can cause extensive damage to the eyes. It may make the cornea opaque and blindness can result from severe or untreated exposure. Inhalation of even quite small quantities of the vapour can cause irreversible damage, having a serious effect on the mucous membranes. Symptoms may include coughing, choking, chest tightness, chills, fever and cyanosis. Pulmonary oedema may occur 24 hours or so later. Case Study: In 1996 a New York City sanitation worker died after inhaling HF fumes; a second worker was hospitalised after coming to his aid. A plastic container with 70% HF was disposed of improperly with regular refuse. The container burst when the waste was being compacted by the truck.

Disposal of hydrofluoric acid poisoning patients can be divided into two levels, one is the treatment of acid burns its hydrogen ions generated, and the second is to deal with the damage arising from its fluoride ion. Although hydrofluoric acids is different with other chemical properties, but the principle of early disposal is still generally strong acid burns disposal. The fluoride ion damage arising from, if not be properly treated, may be progressive tissue destruction. Some patients may have no symptoms early, and no abnormal appearance, the pain may be delayed for several hours, so even if the patient has no symptoms, it should be highly vigilant. Treatment mainly calcium and magnesium-based, skin ointment applied gluconate is generally considered more effective administration of magnesium is the preferred topical treatment. As the systemic treatment, recent studies have shown intravenous magnesium salts such as magnesium sulfate, it seems to be more effective than calcium.