JoandWilly Posted May 18, 2006 Report Share Posted May 18, 2006 Thought everyone might find this interesting, found it out today in a chemistry lecture. The pH of pure water at room temperature is about 7 The pH of pure water at 100 degrees C, is about 6.13. So this means that if you are using water from you hot water cylinder or heated water, chance's are that you are using water with a lower pH than 7, all of course depends on what else is dissolved into your water, BUT as this water cool's back down again it's pH will increase back to 7 Quote Link to comment Share on other sites More sharing options...
Caryl Posted May 18, 2006 Report Share Posted May 18, 2006 Yuor hot water cylinder is set to 100C? Quote Link to comment Share on other sites More sharing options...
JoandWilly Posted May 18, 2006 Author Report Share Posted May 18, 2006 Lol no, but it's not set at room temperature either so that means its gonna be somewhere between a pH of 7 and 6.13. Quote Link to comment Share on other sites More sharing options...
sharn Posted May 18, 2006 Report Share Posted May 18, 2006 i remember reading it ages ago, i *think* it was because the minerals were getting boiled out or something? it seems that might be poopies cause you say it raises back up as it cools... i wonder why that is? Quote Link to comment Share on other sites More sharing options...
JoandWilly Posted May 18, 2006 Author Report Share Posted May 18, 2006 I'm not talking about water from your taps which is full of minerals and stuff im talking about 100% pure water, it all has something to do with the equilibrium of the H2O molecules and the H3O+ ions and OH- ions. Quote Link to comment Share on other sites More sharing options...
Ira Posted May 19, 2006 Report Share Posted May 19, 2006 Hmmm, I didn't know the PH was fluid.(Hehe, Get it?) I've never heard it depended on temperature before. Quote Link to comment Share on other sites More sharing options...
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