See the glycerol separation section at JTF. FFAs (100% "pure") rise to the surface.
They're not soluble in water. In their pure state they would be be applied in a similar manner as used by county and state road crews to curb weeds along asphalt roadways. Todd Swearingen . Mike Weaver wrote: >How do you separate out the FFA's? > >bob allen wrote: > > > >> howdy Thomas >> >>I am a little surprised that a dilute solution of ffa's would have any >>impact on plant life over a 24 hour period. My guess is that your >>solution contains more than ffa's. What is the pH ? how about total >>dissolved solids, ie salts ? Do you have any idea of the concentration >>of the ffa (in water I assume)? >> >>Thomas Kelly wrote: >> >> >> >> >>> I've been gardening for over 30 years by essentially "building dirt" >>>and caring for my plants from the ground up. >>>I've been know to chop off a weed's head now and again or yank them from >>>the ground. I've squished "bugs" by the thousands and lured others to >>>deadly traps. I've never used a spray that has any real obvious results >>>(dead insects or "weeds"). >>> I've been splitting my glycerine co-product into FFA's, potassium >>>(and some sodium) phosphate, and crude glycerine. >>> Yesterday I sprayed FFA's on some weeds in an area of the garden that >>>hasn't been turned yet. Today they appear to be dying. It didn't seem to >>>discriminate ... dandelions, wild mustard, plantain, grass .... all >>>withering. >>> I'm a bit taken back. The sprays I concoct from chives, peppers, >>>mulberry leaves etc. are intended to repel/discourage pests. I don't see >>>any corpses. It's more a matter of faith or delusion that they are >>>working ... I don't care which. Weeds involve physical removal and >>>discouragement with thick mulch. >>> The "weeds" sprayed w. FFA's appear to be in serious trouble only >>>24 hrs after spraying. What is the mechanism of FFA action on plants? >>>Does it act on the lipid component of the cell membranes? Is it systemic >>>or just act on the point of contact - the leaves. If it only acts on the >>>leaves, will new shoots be sent up? >>> If FFA's are non-toxic, biodegradable, and effective weed killers, >>>it would be very good news to an aging gardener who turns each section >>>of the garden by hand, meticulously picking out the weeds. I don't mind >>>the turning, countless tons of compost over the years has turned shallow >>>hard-pan clay into beautiful rich soil that takes little effort to turn. >>>It's the bending to pick the "weeds" that gets to my back. >>> I believe Todd Swearingen and Prof. Bob Allen have both mentioned >>>FFA's as weed killer. >>> My back thanks you, >>> Tom >>> >>> >>>------------------------------------------------------------------------ >>> >>>_______________________________________________ >>>Biofuel mailing list >>>Biofuel@sustainablelists.org >>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>> >>>Biofuel at Journey to Forever: >>>http://journeytoforever.org/biofuel.html >>> >>>Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): >>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>> >>> >>> >>> >>> >> >> >> >> > > >_______________________________________________ >Biofuel mailing list >Biofuel@sustainablelists.org >http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > >Biofuel at Journey to Forever: >http://journeytoforever.org/biofuel.html > >Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): >http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > > > > _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
