This would be impossible to achieve.
Excessive consumption would lead to vomiting, preventing any futher ingestion of water.
Edit: the person that initially answered this is wrong. Water does have an LD50, and for rats it's 90 ml/kg. It should be something similar to that for humans. Here's a woman that died in a water drinking contest from water intoxification: http://www.msnbc.msn.com/id/16614865/
This has nothing to do with the presence of water, but rather the lack of electrolytes such as salt. Drinking water uses up your body's "supply" of salt, and if it gets used up completely, your brain can no longer transmit electrical signals and you die. If you get a steady supply of salt with the water, you won't have any problems no matter how much water you drink, but as the first answer said, there is a limit to how much water you can drink before your body refuses to take any more, and anything you drink just gets vomited out.
Oral LD50 in rats is 5045 mg/kg for 2-propanol, the usual isomer when isopropanol is referred to.
Oral LD50 in rats is 1870 mg/kg for 1-propanol, the other isomer.
No easily found data on humans on the internet but just for an interesting comparison, LD50 for rats is 7060 mg/kg for ethanol.
Data from MSDS published by manufacturers.
According to Wikipedia, that value is >90 or >90,000 ml/kg
The way that toxic materials are defined is by how well they kill rats. This is called the "Median Lethal Dose" or LD50. It is usually expressed as "LD50, Oral, Rat" meaning that the subjects were specially bred, white, Norway rats and the dose was given by mouth. The dose is presented as milligrams per kilogram of rat.The U.S. EPA and OSHA define a toxin as a substance that has an LD50 of 500 mg/Kg or less. Acutely toxic materials have an LD50 of 50 mg/Kg or less.The U.S. DOT defines poison as a substance with an LD50 of 200 mg/kg or less.
Toxicity to Animals: Acute oral toxicity (LD50): 2217 mg/kg [Rat]. The LD50 [Human] is unknown as such an experiment would be unethical.
In toxicology, the median lethal dose, of a toxin is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity.
LD50 (short for lethal dose 50) is the dose of a substance at which it kills 50% of test subjects.
true,however LD50 just provide coarse idea and specific adverse effect also need be considered.
No. 1,4-butanediol is significantly more toxic. The MSDS for propylene glycol lists an oral LD50 of 20g/kg in rats, while that for 1,4-butanediol says its LD50 for rats is 1.5g/kg.
by definition ld50 is when 50% survive or dead,,answer will be 5 if i count well
The way that toxic materials are defined is by how well they kill rats. This is called the "Median Lethal Dose" or LD50. It is usually expressed as "LD50, Oral, Rat" meaning that the subjects were specially bred, white, Norway rats and the dose was given by mouth. The dose is presented as milligrams per kilogram of rat.The U.S. EPA and OSHA define a toxin as a substance that has an LD50 of 500 mg/Kg or less. Acutely toxic materials have an LD50 of 50 mg/Kg or less.The U.S. DOT defines poison as a substance with an LD50 of 200 mg/kg or less.
10 doses of cyanide !!!!Potassium cyanide: LD50, Oral Rat = 6 mg/kg.Phorate: LD50, Oral Duck = 0.6 mg/kg (ten times deadlier for ducks than KCN is for rats.)
According to the Fisher Scientific MSDS for bleach, the oral LD50 in rats is >90 mL per kilogram of body weight. So if you're worried about bleach poisoning, you'd have to drink a lot for it to kill you. It does have other harmful effects at lower doses, however.
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"
192mg/kg in rats. Less immediately available information for humans.
Toxicity to Animals: Acute oral toxicity (LD50): 2217 mg/kg [Rat]. The LD50 [Human] is unknown as such an experiment would be unethical.
The LD50/50 (50% mortality in 50 days) for strontium-90 in rats is estimated to be around 2.5 to 3 microcuries per gram of body mass. I do not know if that translates linearly to humans.
The acute oral LD50 of alprazolamin rats is 2171 mg/kg.Assuming similar toxicity in humans (which is an assumption that has many faults) a 70 kg person would have a 50% of dying if they consumed about 145g that is over 500 0.25g tablets.
The exact amount in humans is uncertain as such an experiment would be unethical. In rats the LD50 is 2000 mg/kg (LD50 is the dose that kills 50% of those getting it). A dose much less than this will cause some damage in almost all. The Lowest Published Lethal Dose (LDL) [Human Infant] - Route: Oral; Dose: 442 ku/kg/11D.
Glutamate has a very low acute toxicity under normal circumstances; the oral dose that is lethal to 50% of subjects (LD50) in rats and mice is ~15,000--18,000 mg/kg body weight, respectively. Normally spoken when a salt is consumed by a human it is dissolved, whether it's in pure water or in water contaminated with alcohol. Death by saltcaused-dehydration has an extremely painful trajectory.