11-24-02 19:44
No 383039
What is a good way to dry wet p-benzo from a hydro to benzo synth? SWim doesn't have a disecctor(sp?). If swim left it sit out to dry, how long could he let it sit until it started to decompose?
I went into the business for the money, and the art grew out of it.-Charlie Chaplin
(Hive Bee)
11-25-02 00:42
No 383086
My usual method for drying solids:
A.
Leave the filter paper with wet product on layers of tissue, newspaper or any other absorbent material for an hour or two [doubt benzoquinone would deteriorate in this time period]. The cake should then look moist as opposed to wet.
B.
Place in dessicator overnight. 'Dessicator' may be any sealed container in which there is a crucible or dish containing some hygroscopic substance. I usually use conc. H2SO4.
If you wanna be sure [picky] about moisture removal you could weigh the product every now and again. When it's mass stops changing it is dry.
A quicker alternative is to leave the product in an oven on low heat for 2-3 hours. But make sure the oven temp is not high enough to melt the solid!
[My oven has seen enough tragedies so that if I actually used it for baking or roasting food, the stuff would taste like PAA and the basting would probably come from 2,5-DMNS]
Mountain Boy
(Greenhorn)
11-25-02 05:28
No 383135
Thanks. Swim left it out to dry. No decomposition just a pile of nice yellow p-benzo!
I went into the business for the money, and the art grew out of it.-Charlie Chaplin
(Hive Bee)
11-26-02 21:28
No 383811
Any air tight container and a suitable dessicant can be used as a makeshift dessicator.
It will re-arrange into brown/black unusable state in about a week if left/stored wet.
IMO the best way is to make as needed so long term storage considerations don't have to be made. It's much easier/safer to store hydroquinone for long periods if a stockpile is needed.
Yes, it's a little more work, but your guarenteed fresh benzo with no decomposition.
-oc
PS. Start your pdcl2 stirring while you work the benzo synth up. Straight from one reaction to the next.
PSS. Egads, you ever baked benzo? I tried once, the smell was too aweful. Use a makeshift dessicator.
Signature-less, Again.