More moles of gas per moles of material reaction

Click For Summary

Discussion Overview

The discussion revolves around the exploration of materials that can be chemically ablated to produce gas, similar to an airbag inflation effect, using a specific type of laser. The focus is on identifying non-toxic or less hazardous chemicals that exhibit significant offgassing properties.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • An undergraduate astrophysics student seeks advice on materials for a chemical ablation process, specifically looking for non-toxic options that produce gas.
  • Some participants suggest that the listed carbonates and bicarbonates could work for the intended reaction, with a note on the ammonium salt providing a "reverse" reaction possibility.
  • The student inquires about databases that store UV-Vis spectra for the mentioned chemicals, indicating a need for further research and data.
  • A participant provides a reference to a database for UV-Vis spectra, specifically mentioning Sadtler.

Areas of Agreement / Disagreement

Participants generally agree that the listed carbonates and bicarbonates could be viable options for the reaction. However, the discussion does not resolve the effectiveness or safety of these materials, and further exploration is indicated.

Contextual Notes

The discussion lacks detailed information on the specific conditions under which the reactions would take place, as well as any potential limitations or safety concerns associated with the suggested materials.

Who May Find This Useful

Readers interested in chemical reactions involving gas production, particularly in applications related to safety devices or experimental setups in astrophysics and chemistry.

TRB8985
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Good evening,

I'm an undergraduate astrophysics student currently doing research, and I wanted to get the opinion of some
knowledgable chemists about a particular reaction my professor and I wish to emulate.

Using a specific type of laser (Nd: YAG, for example), I'd like to mimic something akin to an air bag inflation effect by chemically ablating some type of material. However, the struggle has been trying to find some type of material that's not completely toxic/carcinogenic and actually has appreciable offgassing effects.

So far, the only hints have been the following chemicals:
- Ammonium Carbonate
- Calcium Bicarbonate
- Magnesium Hydrogen Carbonate
- Hydrous Sodium Bicarbonate

But I'd like to have at least *some* semblance of expectation that some of these work before purchasing them. Additionally, the idea of ablating solid peroxides was offered by someone outside of our department.

Does anyone have any knowledge surrounding this scenario with these chemicals or process? Any input would be greatly appreciated, thank you.
 
Chemistry news on Phys.org
Any of the listed carbonates/bicarbonates will work; the ammonium salt gives you a "reverse" reaction possibility.
 
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Thanks Bystander! Appreciate your help.

You wouldn't happen to know of any kind of databases that store UV-Vis spectra on these by any chance, would you?

Really crossing my fingers here!
 
TRB8985 said:
UV-Vis spectra
Sadtler.
 

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