Water Environment Federation (WEF) Discussion Forums / Academic and Student Issues / Archives / Archived Forum Topics / Chemical reactions / Latest PostsWater Environment Federation (WEF) Discussion ForumsWater Environment Federation (WEF) Discussion Forumshttp://www.wef.org/TechnicalDiscussions/jfuller@wef.orgWed, 19 Nov 2008 11:45:50 GMT20RE: Chemical reactionshttp://www.wef.org/TechnicalDiscussions/Topic6692-5-1.aspxI don't know about how organically safe it is but....</P><P>Calcium Chloride or Potassium Chloride and water will generate heat (stuff they sometimes use to melt snow) and any strong acids with water generate heat. (Always 'add acids to bases, to save your faces' <img align="absmiddle" src="http://www.wef.org/TechnicalDiscussions/Skins/WEFTest2/Images/EmotIcons/Smile.gif" border="0" title="Smile"> I'm sure there are tons more options....Thu, 20 Sep 2007 07:36:11 GMTkcusnemChemical reactionshttp://www.wef.org/TechnicalDiscussions/Topic6692-5-1.aspxCan anyone tell me if there are a combination of organically safe chemicals/natural ingredients which when mixed will create heat?Wed, 19 Sep 2007 21:07:26 GMTpaul231