# what is a clear liquid that attacks cellular respiration

I'm doing a biology assignment and need to find out a clear liquid that attacks cellular respiration. It needs to be toxic and either absorbed through the skin or inhaled.

• I'd try asking this on Biology.SE, not here. And nevertheless, you should give candidates that you've thought of already and discarded for one reason or the other. This isn't a "do my homework" site. – tschoppi Mar 10 '14 at 21:37
• As below, but potassium cyanide solution. Liquid HCN can explosively polymerize, doi:10.1021/je60007a031 – Uncle Al Mar 11 '14 at 19:21
• @tschoppi: Or a "plan my murder" site... – Aesin Mar 11 '14 at 20:46

If you do not want the more effective acetylcholinesterase inhibitors, metal carbonyls might be an option: Nickeltetracarbonyl, $\ce{Ni(CO)4}$, is a colourless liquid with a boiling point of 43 °C.