- Source: Barking dog reaction
The "Barking Dog" is an exothermic chemical reaction that results from the ignition of a mixture of carbon disulfide and nitrous oxide. When ignited in a cylindrical tube, the reaction produces a bright flash and a loud "woof" - reminiscent of a barking dog.
In simple terms, the 'Barking Dog' reaction is a combustion process, in which a fuel (carbon disulfide, CS2) reacts with an oxidizing agent (nitrous oxide, N2O), producing heat and elemental sulfur. The flame front in the reaction is a zone of very hot, luminous gas, produced by the reactants decomposing.
8 N2O + 4 CS2 → S8 + 4 CO2 + 8 N2
In April 1853, Justus von Liebig performed the demonstration in front of the Bavarian royal family; however, the glass container shattered, and shards of glass inflicted minor injuries on the faces of Queen Therese, her son Prince Luitpold, and Liebig himself.
References
External links
Barking Dog (slow motion) - Periodic Table of Videos, University of Nottingham
University of Leeds Barking Dog site Archived 2019-01-24 at the Wayback Machine
Elementary Productions: Small scale Barking Dog reaction @ youtube
Barking Dog Reaction How to Do the Barking Dog Chemistry Demonstration Archived 2009-01-24 at the Wayback Machine
Kata Kunci Pencarian:
- Reaksi anjing menggonggong
- Barking dog reaction
- Justus von Liebig
- List of scientific demonstrations
- Carbon disulfide
- Mercury beating heart
- Chemical garden
- Maxim Bilovitskiy
- Devocalization
- Dog park
- Dog
