i'm sure watering the lawn with a fire hose would work out well too "Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
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no swim is sure last time he tried the fire hose it caused flooding, that would be a negative effect, see then swim wouldn't do that again.
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swim during a flood? not sure that's a good idea "Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
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here's a good example http://www.wolframalpha.com/input/?i=0.1+N+NaOHstandard 0.1 N sodium hydroxide, 4 g NaOH in 998 mL water, pH 13. 1 N NaOH is 40 g in 981 mL water, pH 14. so why would you add 100 g of lye for 100 g of mhrb? to lyse the cells? again, there are better ways of doing this; and you don't even need a sonicator, or a PC. "Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
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Hey, just thought I'd let anyone who wants to know.
My heptane/whatever solution has been in the freezer for 3 hours now and it's already milky and there's visible crystalization on the side of the jar. I used more heptane than the 30ml called for with naptha, no more than 60ml each pull, because siphoning out 30ml was going to be a ***** (I have an inadequate mixing jar, too short and fat, so thinner layers, but it'll get replaced soon, and with larger quantities it won't matter as much). I also put 4 pulls all in one jar because there was so little each pull.
Anyway! I hope to report good news tomorrow!
*EDIT*
Ok, a few hours later I check again. There's more crystallization (although there's enough frost built up on the outside of the glass, and it's still milky, so it's not perfectly easy to see) but I noticed that some of the crystallization is a little pink. I was searching around the forum for posts on different colors of spice and read that red spice can be indicative of secondary alkaloids or certain plant oils being present in the product.
Just wanted to add, I let the lye mix sit (with one or two daily shakes) for about 3 days I'm guessing and for most of that time the container was sitting a couple feet away from a heating vent. Now, my house isn't kept particularly warm (the thermostat is kept to around 67F) but it's been somewhat cold so it's been running at least a few times a day. I checked the temperature of the jar immediately after it'd been sitting in front of the vent for the entire duration of one session of the hot air blowing and it was warm but not that warm. I probably rather vigorously shook it on those occasions as well.
Also, the original mixing container is glass, the jar in the freezer is glass, the turkey baster I used to transfer is glass.
The solvent I was using was Bestine, and the lye was Red Devil Lye, and on no occasion were there any spills or accidents that might have caused some sort of contamination with any of the materials used. I mixed the lye with the water using a cleaned stainless steel spoon.
When extracting the mixed/separated bestine layer from the total mixture I was very careful to avoid any lye making it into the glass. There were two or three occasions where a droplet of the lye mixture made it into the baster. One those occasions I immediately put all of the contents of the tube back into the lye mixture and cleaned the baster glass.
Should I worry that there might be an unsafe contamination or simply a little extra material extracted from the bark?
*/EDIT*
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