Questions tagged [carbon-dioxide]

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Is there a cheap and effective way to make PdZn-Ag foam?

I am trying to design a machine that can convert carbon dioxide into methanol and/or hydrocarbons. My design requires PdZn-Ag foam (nanoparticles), which is made by depositing palladium-zinc vapor ...
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1answer
41 views

Is there any chemical that can catalyze “reverse combustion?” [closed]

I am trying to build a machine that converts carbon dioxide and water into gasoline (i.e. octane). Because the energy needs are so large, is there any catalyst chemical that can cause "reverse ...
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27 views

What apparatus is needed to get a balloon full of anhydrous carbon dioxide from solid carbon dioxide? [closed]

I'm currently planning a research project (new to this) and we need to bubble CO2 through our reaction mixture, however we are not able to use compressed gas so have been advised to pass CO2 from dry ...
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1answer
77 views

Why CO2 is not reducing the pH of NaOH as the way it is expected

I am using $\ce{CO2}$ for the reduction of pH of $\ce{NaOH}$ solution ($\pu{2.5g}\; \ce{NaOH} + \pu{250ml}\; \ce{H2O}$, with $\mathrm{pH}\; 13+$). I am introducing $\ce{CO2}$ with different dosages ($\...
1
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1answer
54 views

Ventilating combustion byproducts in water heaters

I'm designing a system which will heat up water by burning natural gas which is commonly available. I would like to have a slow flame because water will need to reach $\mathrm{70^\circ C}$ and stay ...
4
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1answer
64 views

Searching for a solvent with a low carbon dioxide solubility

I would like to use a liquid solvent for some experimentation with a carbon dioxide solubility as low as possible under usual pressure and temperature conditions (say, $\pu{1 atm}$ and $\pu{293 K}$). ...
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0answers
19 views

Scrubbing CO2 from atmospheric tank air supply

I am speccing a system for highly purified water which will be stored in an atmospheric tank. The tank comes with HEPA filters that will keep out things like dust, spores and bacteria, however, CO2 ...