What cuvette to use for fast vaporizing liquids?

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SUMMARY

The discussion focuses on selecting appropriate cuvettes for fast vaporizing liquids, specifically aviation kerosene. Cuvettes with Teflon stoppers are currently in use, but they fail to maintain a proper seal at temperatures above 15 degrees Celsius, leading to vapor escape. Alternatives such as Viton and urethane stoppers are recommended due to their chemical resistance and sealing capabilities. The conversation also suggests using parafilm as a potential solution for sealing the cuvette tops.

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  • Understanding of cuvette materials and their chemical resistance
  • Knowledge of vaporization properties of liquids at varying temperatures
  • Familiarity with aviation kerosene and its handling
  • Experience with sealing techniques in laboratory settings
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  • Research the chemical resistance of Viton and urethane materials
  • Explore the properties and applications of Teflon in laboratory equipment
  • Investigate sealing techniques for volatile liquids in cuvettes
  • Learn about the use of parafilm in laboratory applications for sealing
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Laboratory technicians, chemists, and researchers working with volatile liquids who need to optimize cuvette sealing and performance.

surepic
What type of cuvettes are you using for fast vaporizing liquids at room temperature ?
I found that cuvettes with Teflon stoppers are working so far but the problem is that at room temperature stopper to cuvette wall seal is not enough to hold that pressure so above 15degrees C vapours are finding their way out. I can't use stoppers with holes because of vapours (concentration in the sample is dropping).

Sample is aviation kerosene.
 
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Consider "Viton" or a urethane for a stopper material. Viton is used in carburetor float valves because it is impervious to both gasoline and alcohol. I mentioned urethane because it is 'grippyer'. Here is a link for chemical resistance of various polymers.
http://www.mossrubber.com/pdfs/Chem_Res.pdf
 
How long does the stuff in the cuvette have to last? Can you just wrap the top in parafilm and be done with it?
 

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