Looking for a chemical with a boiling point between 10C and 50C

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Discussion Overview

The discussion revolves around identifying chemical compounds with boiling points between 10°C and 50°C at standard pressure, focusing on organic and relatively non-toxic substances suitable for a theoretical exploration of temperature changes in medium temperature heat storage devices. Participants are not seeking to acquire these materials but rather to discuss their properties and implications.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant specifies the need for a chemical with a boiling point between 10°C and 50°C, emphasizing the importance of low toxicity and microwave responsiveness.
  • Another participant suggests ether as a candidate but expresses uncertainty about its suitability.
  • A different participant identifies pentane as having a boiling point of 36°C.
  • One participant lists several chemicals with their boiling points, including 1,2-butadiene (10.9°C), ethylamine (16.6°C), and dichloromethane (39.8°C), while noting concerns about toxicity and flammability.
  • Another participant recommends pentane, diethyl ether, chloroethane, and dichloromethane, cautioning about their flammability and potential dangers, while also suggesting alternatives with higher boiling points like acetone and methanol.

Areas of Agreement / Disagreement

Participants express a range of opinions on the suitability of various chemicals, with some agreeing on specific candidates while others raise concerns about toxicity and flammability. No consensus is reached on a definitive choice of chemical.

Contextual Notes

Participants highlight limitations regarding the toxicity and flammability of suggested compounds, as well as the need for further research into the properties of these chemicals. There is also mention of the potential carcinogenic nature of some compounds listed.

Who May Find This Useful

This discussion may be of interest to those exploring chemical properties for theoretical applications in heat storage, as well as individuals considering safety and toxicity in chemical selection.

Skaperen
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TL;DR
i am looking for a chemical with a boiling point between 10C and 50C at standard pressure for a discussion example.
i am looking for a chemical compound that has a boiling or condensation temperature between 10C and 50C at standard pressure and is not one prohibited for discussion in the Physics Forum or any online chemical forums. something that is organic and not very toxic is preferred. it should be something that responds to microwave heating (optimal frequency being known helps). freezing/melting point should be at least 30C below the boiling point.

my purpose for this is to be part of a discussion involving the physical effects of sudden temperature changes in a medium temperature heat storage device. i will not be acquiring this material. i just wish to discuss a sensible example. too bad water requires 100C to boil as it would be a great choice if people didn't need to imagine so much energy. it will be an example in a discussion. but you know how some people are, so i don't want this to be something dangerous.
 
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A nearly perfect question for chat GPT.

I'll toss out ether as a candidate (with absolutely minimal thought), but... no, I haven't done your research for you. I'm sure there's something wrong with it.

BTW: Acetone was my first guess, but, nope: 56C.
 
Last edited:
i found Pentane is 36C.
 
Engineering Toolbox lists quite a few.

Being not a chemist, I can only guess as to which ones fit all your criteria.
I guessed carbon disulfide, but wiki claims that it's a neurotoxin.
I thought diethyl ether might work as it used to be used as an anesthetic, but wiki claims it is also used as a starter fluid for diesel engines, so I'm guessing it's flammable.

The rest all have scary names which I wouldn't go near. But as I said, I'm not a chemist, and chemistry has always been my worst subject.

product°C
1,2-Butadiene10.9
Ethylamine16.6
Hydrofluoric Acid18.9
Acetaldehyde CH3CHO20.8
Trichlorofluoromethane refrigerant R-1123.8
Isopentane27.8
1 - Pentene30
Isoprene34.1
Diethyl ether34.4
Ether34.6
n - Pentane36
Dimethyl sulfide37.3
Ethyl bromide C2H3Br38.4
Methylene Chloride(CH2Cl2, dichloromethane)39.8
Methyl iodide42.6
Carbon Disulfide CS246.2
Propylamine47.2
Carbon Bisulfide47.8
Propanal48
Cyclopentane49.3
Neohexane49.7
 
I suggest pentane, diethyl ether, chloroethane (bp 12.3 C), and dichloromethane.
Pentane and diethyl ether are highly flammable, you might want to avoid them.
Some you listed are smelly (e.g. acetaldehyde, propylamine, propanal).
Some are dangerous. Don't use hydrogen fluoride or carbon disulfide.
If I were in your place, I would use dichloromethane. I have used it myself for many years.

Recently people are saying it is carcinogenic (as are several compounds on your list).
If that is a problem, I would recommend seeing if you can use a higher bp.
Use acetone (bp 56 C), methyl t-butyl ether (bp 56 C), methyl acetate (bp 57 C),
or methanol (bp 65 C).
 

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