Produce harmless gas to inflate a rubber balloon

  • #1
Hi to all
I am new to this forum. I need some help.
I want a chemical reaction which produces a harmless gas with the use of small amount of reactants.
Thanks
Shashank
 

Answers and Replies

  • #2
russ_watters
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Baking soda + vinegar = carbon dioxide (among other things).
 
  • #3
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Don't know what you mean with "small amount". However you can begin with a classic: vinegar + sodium carbonate:

2CH3COOH + Na2CO3 --> CH3COONa + H2O + CO2

Instead of acetic acid of vinegar you can use hydrochloric or sulphuric or phosphoric acid:

2HCl + Na2CO3 --> 2NaCl + H2O + CO2

H2SO4 + Na2CO3 --> Na2SO4 + H2O + CO2

2H3PO4 + 3Na2CO3 --> 2Na3PO4 + 3H2O + 3CO2

Edit: beaten on the time about the first...
 
  • #4
chemisttree
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The smaller the starting material and the greater the gas produced, the more dangerous the thing is.
 
  • #5
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What about the speed of reaction in vinegar + sodium carbonate ? How fast does it produce gas? Anyone ever tried?
 

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