# How much would a tank for storing liquid CO2 in a car cost **URL:** \ **Category:** Factual Questions\ **Created:** [September 30, 2005, 1:49am UTC](https://boards.straightdope.com/t/how-much-would-a-tank-for-storing-liquid-co2-in-a-car-cost/324132 "2005-09-30T01:49:22Z")\ **Posts on this page:** 2\ **Page:** 2
**Author:** ![Finagle](https://avatars.discourse-cdn.com/v4/letter/f/b19c9b/32.png) [@Finagle](https://boards.straightdope.com/u/Finagle)\ **Post date:** [September 30, 2005, 7:00pm UTC](https://boards.straightdope.com/t/how-much-would-a-tank-for-storing-liquid-co2-in-a-car-cost/324132/21 "2005-09-30T19:00:41Z")
[QUOTE=Squink] You’d need a huge, energy gobbling infrastructure …/QUOTE] Yep. Trees. ---
**Author:** ![aamco](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@aamco](https://boards.straightdope.com/u/aamco)\ **Post date:** [September 30, 2005, 9:05pm UTC](https://boards.straightdope.com/t/how-much-would-a-tank-for-storing-liquid-co2-in-a-car-cost/324132/22 "2005-09-30T21:05:21Z")
> [@gotpasswords](#): > > How do you handle the CO, water and any unburned fuel? Probably the same way chemists handle it - by passing the exhaust through multiple traps, each of which condenses a different chemical. Water would freeze out at 0 [sup]o[/sup]C, so a -20 [sup]o[/sup]C trap would allow CO[sub]2[/sub] to pass through while trapping the water … etc. > [@gotpasswords](#): > > I certainly wouldn’t want to use it in my soft drinks! I’m not entirely sure the industrial process for making CO[sub]2[/sub] is much different. > [@Wesley Clark](#): > > I don’t know if CO2Cl is liquid or solid at room temperature though. CO[sub]2[/sub]Cl doesn’t exist. NaCl will not react with CO[sub]2[/sub]. You can get amines (NH[sub]3[/sub], RNH[sub]2[/sub]) to react with CO[sub]2[/sub], though. [Previous page](https://boards.straightdope.com/t/how-much-would-a-tank-for-storing-liquid-co2-in-a-car-cost/324132.md?page=1)