Heating water at 100 °C without coolers?

[k_amy21]

hi,

I need to expose metallic material in the WATER for a certain period of time (3, 6 and 12 months) at 100 °C (+/- 5 °C) and normal pressure. Is it possible to do that without using coolers?
I was thinking of putting the glass vessels in the oven and closing it with some "special" equipment (please, see the attached file). What do you think, would that be safe and secure so the water does not evaporate and the whole system doesn´t explode because of the overpressure??

Regards

 

[Borek]

I would not close it tight without a safety valve, you need to take into account possible failure of the thermostat. That is assuming in the first place the vessel you are using is capable of sustaining slight overpressure.

Note that in the case of the blackout you may have quite the opposite problem - implosion instead of explosion.

 

[obafgkmrns]

Make a double boiler by immersing the glass vessels in boiling water. You could then go ahead and seal the glass vessels tight without concern for overpressure. Just be sure the boiler doesn't run dry.

 

[k_amy21]

I think this metal part around the vessel is preety secure (like some kind of valve), but these red plastic things which are holding the top I-don´t-know-what´s-it-cold could loosen after a while.
I am just searching for the easiest way to set up my experiment and it will, obviously, be using the coolers. grrrrrr... It´s not because I need to use the coolers, but it´s because then the whole equipment doesn´t fit in the oven, and therefore I need to use heating mantles and temperature regulators which I don´t have enough! ..gosh..

 

[LudusRex]

,

I would recommend against heating water at 100 °C without coolers for extended periods of time. While it may be possible to use the method described with the glass vessels and specialized equipment, there are potential safety concerns that must be addressed.

Firstly, exposing metallic materials to high temperatures for extended periods of time can lead to oxidation and corrosion, potentially affecting the results of your experiment. Additionally, without proper circulation or cooling, there is a risk of hot spots forming in the water, leading to uneven heating and potentially damaging the materials being tested.

Furthermore, without a proper cooling system in place, there is a risk of the water evaporating and causing an overpressure within the vessel, potentially leading to an explosion. The use of specialized equipment may help to mitigate these risks, but it is not a foolproof solution.

In order to safely and accurately conduct your experiment, I would recommend using a controlled heating system with proper circulation and cooling mechanisms in place. This will ensure that the water remains at a constant temperature and does not evaporate, while also preventing potential damage to the materials being tested. Safety should always be a top priority in any scientific experiment.