Chemical Forums

Please login or register.

Login with username, password and session length

Sponsored links

Pages: [1]   Go Down

Author Topic: Negative thermal expansion liquid  (Read 996 times)

0 Members and 1 Guest are viewing this topic.

DarekN

  • Very New Member
  • *
  • Mole Snacks: +0/-0
  • Offline Offline
  • Posts: 2
Negative thermal expansion liquid
« on: September 28, 2017, 01:59:47 AM »

Hello,

Is it possible to manufacture (or buy) a liquid that has negative coefficient of thermal expansion (expands while cooled) ?

Thanks,
Darek
Logged

Arkcon

  • Global Moderator
  • Sr. Member
  • ***
  • Mole Snacks: +506/-142
  • Offline Offline
  • Posts: 6993
Re: Negative thermal expansion liquid
« Reply #1 on: September 28, 2017, 02:55:21 AM »

Yes.  Much of the planet Earth contains water, which is available at a reasonable price in most areas.  Water expands between the temperature of 3.98 °C down until 0 °C, when it freezes. https://en.wikipedia.org/wiki/Water#States

I'm going to assume you already knew about water.  But I bring it up because you didn't trouble yourself to mention: how much expansion, and over what temperature range do you mean.  The alloy called Wood's metal also expands when cooled.  And a number of other composite solids as well.  https://en.wikipedia.org/wiki/Negative_thermal_expansion#Materials

If water and these materials aren't what you're looking for, you have to tell us why.
Logged
That all depends on how reasonable we're all willing to be.  I just want my friends back, except for Cartman, you can keep him.

DarekN

  • Very New Member
  • *
  • Mole Snacks: +0/-0
  • Offline Offline
  • Posts: 2
Re: Negative thermal expansion liquid
« Reply #2 on: September 28, 2017, 03:09:44 AM »

I am interested to have a "container" with water mixed with this negative thermal expansion liquid (in right proportions) to obtain a mix that has 0 thermal expansion coefficient (and still be a liquid). I would like to have it in "room temperature / conditions".

Is now everything okay? :D
Logged

billnotgatez

  • Global Moderator
  • Sr. Member
  • ***
  • Mole Snacks: +203/-54
  • Online Online
  • Gender: Male
  • Posts: 3556
Re: Negative thermal expansion liquid
« Reply #3 on: September 29, 2017, 05:41:06 AM »

@DarekN
What did your GOOGLE search turn up for
Quote
zero thermal expansion liquid
Logged

Enthalpy

  • Chemist
  • Sr. Member
  • *
  • Mole Snacks: +177/-48
  • Offline Offline
  • Posts: 2286
Re: Negative thermal expansion liquid
« Reply #4 on: October 10, 2017, 01:46:21 AM »

If you have such a solid, you can make a suspension of it in a liquid. Maybe the suspension fulfils your wishes?

And what if the expansion of the container matches that of the liquid? Solid polymers tend to expand much.
Logged
Pages: [1]   Go Up
 

Mitch Andre Garcia's Chemical Forums 2003-Present.

Page created in 0.051 seconds with 23 queries.