Tuesday, October 25, 2016

Oct 25th- GRNG 301-Soap Making Update

Tharun's group analyzed batch of castor oil-based soap made with KOH:

From Soap Calc.net(http://soapcalc.net/ ):

Making Cold Process (CP) soap.
Oils such as olive oil are placed into a stainless steel or enamel stockpot.  A mixture of lye and water is added to the oils.  The mixture is stirred until it thickens a bit.  The mixture is poured into a mold.  The mixture hardens overnight.  It is then un-molded and cut into bars.






Also check on water quality in Aquaponics System, using a test strip. Water appears to be fairly alkaline, around pH 8.0, with a fair amount of nitrites:



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