On Tue, 7 Aug 2012 10:42:17 -0300, Kevin wrote: >Very interesting possible explanation for why "spent agricultural lime" >helps with the anaerobic retting process! > >While Ca(OH)2, or "Hydrated lime" can have a pH as high as about 12.5, and >is indeed very caustic, CaCO3 or "Limestone", "agriculture lime, "land >lime", has a pH in the range of about 8, which is not very caustic at all
Yes Kevin I was thinking this was burnt limestone, CaO which had been slaked to Ca(OH)2 and then used in a process before being used for the retting. Here in UK fine chalk CaCO3 is used to lime fields in where it is available locally ( often settled out from borehole water), but in areas to the west it was derived from burnt limestone. Unless Richard can test the pH I cannot speculate further. Slaked lime was added to wheat and barley straw to make it more digestible. AJH _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/
