Author Topic: milky colored dcm  (Read 2233 times)

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homeslice

  • Guest
milky colored dcm
« on: July 29, 2004, 06:35:00 PM »
Distilled dcm as usual from the right source of paint thinner. Its 80%DCM, 5% mineral spirits, 10% ethanol, 5% methanol. The temp never reached 64.5 so i doubt that any methanol or any of the other ingredients got in there. And even if it did, would it turn it milky?

Yesterdays yield of dcm is nice and clear. Man i really dont wanna spend another fuckin day distillin dcm  :(  Anyone see it before when its milky colored?

edit; ill just distill tomorrow and see what happens


Rhodium

  • Guest
Maybe it's wet? Dry it over some Na2CO3 or...
« Reply #1 on: July 30, 2004, 12:48:00 AM »
Maybe it's wet? Dry it over some Na2CO3 or MgSO4 overnight.


Pots

  • Guest
Distilling Paint Thinners
« Reply #2 on: July 30, 2004, 04:32:00 AM »
If I was desperate I would but can't u buy straight DCM around your area.....it's cheap and it's so much easier. Buy the real thing and then u can get straight into all the fun stuff.


homeslice

  • Guest
Pots swims done all the fun stuff, a buncha...
« Reply #3 on: July 30, 2004, 08:47:00 AM »
Pots swims done all the fun stuff, a buncha times. Yeah i can buy dcm, but id just rather not. I dont see how its so much easier either.
I mean its not a big deal that its milky-like, i was just wondering if anyones seen it before like this? Ill just redistill.

Ya think it could be wet even tho dcm and water arent miscible? I dont even know if that would turn it milky. Wouldnt it be a clear liquid in a clear liquid?


OcoteaCymbarum

  • Guest
If you let it stand???
« Reply #4 on: July 30, 2004, 10:38:00 AM »
Does is clear up??
Sometimes I get milky DCM from distilling. But in the end, it turns clear, with water dropplets on top.
Dcm are water are sometimes hard to separate, it takes a while, so maybe if you let it stand, both layers will form.

Remember that when doing a water wash on a Dcm layer, to get all the Dcm out you have to be patient as it takes a lot of time to separate when compared for example to xylene.

homeslice

  • Guest
Yep it cleared up overnite.
« Reply #5 on: July 30, 2004, 11:13:00 AM »
Yep it cleared up overnite. It did stand for about 3 hours and it didnt clear up but i guess overnite was long enough. I thought 3 hours woulda been long enough but nope. It even has the water droplets on top  :)


abolt

  • Guest
Brine
« Reply #6 on: August 01, 2004, 10:20:00 PM »
It did stand for about 3 hours and it didnt clear up but i guess overnite was long enough.[

Next time hit it with a Brine wash, let it settle, and it will clear up in 10 minutes or so.

BTW, DCM is "slightly" miscible with H2O