On 9/5/2011 6:12 PM, Alain wrote:
> If you slowly heat very pure water, it can bet a good bit warmer that
> 100°C before it start to boil. There will be vapour escaping from the
> surface, but no ebulition, even in a open container. It's a dangerous
> situation, as any disturbance can cause explosive ebulition projecting
> scalding water everywhere.
>
Or, very fast, by heating it all more or less at the same time (i.e., 
with something like a microwave oven.

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