interesting, <div>can it be potassium from any unbalance or kind of plant that you use to make the briquttes? <div>To perform metals identification you may burn a sample and to find a characteristic coloration help to identify it.<br>
<br><div class="gmail_quote">2012/9/24 Richard Stanley <span dir="ltr"><<a href="mailto:rstanley@legacyfound.org" target="_blank">rstanley@legacyfound.org</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Dean,<div> I agree with Tom and by (my own) extension: What did yo have to dink the night before ? <div>Seriously, its an intersting phenomena eh? We see it in burning different kind of briqettes too, usually at near end of burn and ususally down in the lower end of the center core. Am all ears here, as I have never tried to parse it out to particular blend or stove type …</div>
<div>Richard </div><div><a href="http://Legacyfound.org" target="_blank">Legacyfound.org</a></div><div><br></div><div><br><div><div>On Sep 24, 2012, at 8:44 AM, Tom Miles wrote:</div><br><span style="border-collapse:separate;font-family:Verdana;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium"><div lang="EN-US" link="blue" vlink="purple">
<div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Dean,<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">If you are the only one seeing it, is that a purple “flame” or a “Purple Haze”? Maybe it’s a generational thing.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
Tom<u></u><u></u></span></div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif"><span> </span><a href="mailto:stoves-bounces@lists.bioenergylists.org" style="color:blue;text-decoration:underline" target="_blank">stoves-bounces@lists.bioenergylists.org</a><span> </span>[mailto:<a href="mailto:stoves-bounces@lists.bioenergylists.org" target="_blank">stoves-bounces@lists.bioenergylists.org</a>]<span> </span><b>On Behalf Of<span> </span></b>Dean Still<br>
<b>Sent:</b><span> </span>Sunday, September 23, 2012 5:11 PM<br><b>To:</b><span> </span>Discussion of biomass cooking stoves<br><b>Subject:</b><span> </span>[Stoves] Purple flame<u></u><u></u></span></div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">Hi Stovers!<u></u><u></u></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">I've been noticing a shift from blue flames above the burning bio-char in a TLUD to purple flames nearer the end of the burn when the bottom of the pile is glowing bright orange. I suppose that the blue flame is caused by burning CO but I wonder why the purple forms after the blue? The blue self sustaining flame doesn't heat the water in the pot as well as the purple flame phase although the pile of bio-char is fully ignited at that time and may account for the more rapid rise in water temperature.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">
Any ideas?<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">
Best,<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-bottom:0.0001pt;margin-left:0in;font-size:12pt;font-family:'Times New Roman',serif">
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