HF is a corrosive mineral acid. It has extremely harmful systemic effects through any route of exposure. In dilute solutions the onset of symptoms is latent. It is important for caregivers to remember that HF has distinct clinical signs and a specific antidote, namely calcium gluconate. The industrial use of HF heightens the importance of being prepared for possible exposures. The emergency med...

background: formalin is an aqueous solution of formaldehyde. it is a protoplasmic poison and causes coagulation necrosis and tissue fixation. case: a 19-year-old girl was brought for autopsy to the mortuary of jss medical college, mysore. conclusion: formalin is an unusual poison to be ingested for suicidal purposes due to selective availability and its strong taste and odor.

Ethylene chlorhydrin, thiourea, and the fat solvent anesthetics, when used in certain concentrations and exposures are often effective in breaking rest periods in plants (8, 13). These agents may also modify the rates of respiration and polysaccharide hydrolysis. The rates of such processes are frequently increased when plants are treated with relatively low concentrations and decreased when tr...