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A comment on World's Largest Producer of Rubbing Alcohol Can't Manufacturer Hand Sanitizer. Parent comment

Re:World's Largest Producer of Rubbing Alcohol Can't Manufac... by js2 on Saturday May 09, 2020 @02:02PM (#23126939)
TIL. However, the CDC quotes a source saying it’s about half that:

> Human data: Ten volunteers exposed for 3 to 5 minutes to 200, 400, or 800 ppm reported mild to moderate irritation of the eyes, nose, and throat at the two higher concentrations [Nelson et al. 1943]. The probable lethal oral dose has been reported to be 190 grams [Gosselin et al. 1984].

https://www.cdc.gov/niosh/idlh/67630.html

IPA has a density of 0.786 g/cm3 (20 °C) (per Wikipedia), so that’s 190/0.786 = 242 ml (about 8 oz).

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Re:World's Largest Producer of Rubbing Alcohol Can't Manufac... by techdragon on Saturday May 09, 2020 @09:07PM (#23129520)
LD50 and estimation of fatal doses can be tricky. Opting for “overly conservative” is hardly inappropriate either. So I wouldn’t be surprised if both of these numbers were correct for different testing criteria.
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