May be corrosive to metals. Causes severe skin burns and serious eye damage. Ingestion may result in severe burns of the GI tract. Toxic if swallowed, inhaled, or in contact with skin. Suspected of causing genetic defects. May damage fertility or the unborn child. Causes damage primarily to the respiratory system, liver, kidneys, CNS, pancreas, pituitary system, thyroid, testis, and skeletal system through a combination of hypocalcemia, hypomagnesemia, hyperkalemia, pulmonary edema, metabolic acidosis, and fluorosis, all of which may not be immediately symptomatic and may develop up to several hours after exposure. Harmful to aquatic life