Timeline for What is the safest and most effective additive to keep drinking water from freezing?
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| Jun 18, 2020 at 8:23 | history | edited | CommunityBot |
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| May 7, 2018 at 17:55 | comment | added | cbeleites | Maybe start by saying "doesn't work" and tone down the "options" to "ideas"? | |
| May 7, 2018 at 11:09 | comment | added | yo' | @cbeleites That's true (btw, I edited in the information about NaF not being an option). However, how else should one answer that there is no good way how to do this? | |
| May 7, 2018 at 11:08 | history | edited | yo' | CC BY-SA 4.0 |
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| May 7, 2018 at 9:40 | comment | added | cbeleites | @yo': my issue with your answer is that IMHO none of your "options" is actually an option. Not in the sense that they don't work wrt. lowering freezing temp (that's an OK conclusion), but in the sense that the "product" would not be a suitable replacement for drinking water, both above and below freezing point. | |
| May 6, 2018 at 14:15 | comment | added | yo' | @Bent Above 79C (ethanol boiling point), vast majority of ethanol from the water-ethanol mixture evaporates. Some is somehow bond to water (I'm not a chemist), but it's negligible remains. | |
| May 6, 2018 at 14:12 | comment | added | yo' | @cbeleites Thanks for the note about NaF being poisonous, however, my whole point is about salts not really helping. | |
| May 4, 2018 at 10:43 | comment | added | Bent | Have you got a source that ethanol evaporates fast (as in a large part will be gone by bringing water to boiling point and keeping it there for a minute or two) when boiling water wiyh ethanol in it? | |
| May 3, 2018 at 17:13 | comment | added | cbeleites | ... important part of the ethanol/water phase diagram: there should be two lines, solidus and liquidus. (I think the given one is the liquidus). They tell you for a given temperature what the composition of the solid ("ice") and liquid phase are. What happens with the schnaps is that you'll have a water-rich frozen phase and the liquid gets even more concentrated in alcohol. (This is used for producing some types of strong beers: Eisbock / Ice Rifing) | |
| May 3, 2018 at 16:56 | comment | added | cbeleites | (-1) none of the "options" is actually an option. NaF is even more toxic than ethanol: according to the safety data Wikipedia cites, the lethal dose for humas is about 5 - 10 g. Fortunately, you won't be able to easily obtain NaF to perform the described experiment. NaCl at 5 % is higher than the salinity of the mediterranean sea and undrinkable (besides totally defeating the purpose of drinking water). I don't think we need to discuss the inadvisability of relying on Doppelkorn/vodka or similar schnaps in cold outdoor conditions. Not to speak of the fact that your graph misses an ... | |
| Jan 25, 2016 at 23:18 | vote | accept | James Jenkins | ||
| Jan 23, 2016 at 8:39 | comment | added | yo' | Please note that if there is nothing obviously wrong with my answer and you do not explain what is wrong with it, I ignore the downvote. Thanks. | |
| Jan 22, 2016 at 17:44 | history | edited | yo' | CC BY-SA 3.0 |
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| Jan 22, 2016 at 17:38 | review | First posts | |||
| Jan 22, 2016 at 17:40 | |||||
| Jan 22, 2016 at 17:37 | history | answered | yo' | CC BY-SA 3.0 |