White phosphorus fatal dose

It is very poisonous, 50 mg constituting an approximate fatal dose. Exposure to white phosphorus should not exceed 0.1 mg/ms (8-hour time-weighted average - 40-hour work week). White phosphorus should be kept under water, as it is dangerously reactive in air, and it should be handled with forceps, as contact with the skin may cause severe burns. 

NHi and benzene, and somewhat less soluble in numerous other organic solvents. The -form can be maintained as a solid up to 64.4°C under a pressure of 11 600 atm, whereas the or-form melts at 44.1°C. White phosphorus is highly toxic and ingestion, inhalation or even contact with skin must be avoided the fatal dose when taken internally is about 50mg. 

The approximate fatal dose of white phosphorus is 50-100 mg, but as little as 15 mg may produce poisoning. A reasonable estimate would be about 1 mg phosphorus per kilogram of body weight. Prompt medical intervention may prevent fatalities, but those who have ingested larger doses (1 g and over) will probably not recover. 

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