Hydrogen cyanide (HCN) was identified in cigarettes smoke but very probably the concentration is not important for health. Far more significant is the nicotine content of cigarettes. Nicotine is a deadlier posion (by ld50) and is also addictive.
ld50 for lamotrigine
thipental
The radiation LD50 of most insects is far higher than the LD50 of mammals.
LD50 (short for lethal dose 50) is the dose of a substance at which it kills 50% of test subjects.
that's not true, in fact magnesium sulfate has been tested on rats and dogs, and it does have an ld50. "The LD50 values were 206 mg/kg for males and 174 mg/kg for females"
1mg/kg
30000000 ng
A probable value for plutonium is LD50 = 5 μg/kg (cumulated chemical and radiological effects).
true,however LD50 just provide coarse idea and specific adverse effect also need be considered.
by definition ld50 is when 50% survive or dead,,answer will be 5 if i count well
238 mg/kg (in mice)