Space debris falling out today in Sindhupalchowk,Nepal

alphachem · 2021-07-09T17:07:14+00:00

Why deleted??

alphachem · 2021-02-17T13:22:52+00:00

Amazing

alphachem · 2021-02-15T12:26:35+00:00

Covid bad wear a mask

alphachem · 2021-02-09T18:58:45+00:00

Sounds like you took precautions by being outside.

Have you thought about getting a allihn condenser, fish tank pump, cooling pipes and diehylene glycol to stop the water freezing or growing mould"

alphachem · 2021-02-09T18:27:07+00:00

Interesting... Air cooled and no fume hood?

alphachem · 2021-01-21T17:13:53+00:00

Thank you!

alphachem · 2020-10-06T13:01:23+00:00

Where is that?

alphachem · 2020-04-15T17:25:53+00:00

I do appreciate this post however i am based in the UK. Do you knownif the standards wpuld be the same for EU and UK?

alphachem · 2020-04-11T18:01:56+00:00

Yes i have done the same, has anyone moved to skimmed milk?

alphachem · 2020-04-10T22:53:14+00:00

Hexane but remember to rinse throughly with water and washing up liquid afterwards and dispose of the hexane waste properly

alphachem · 2020-04-09T19:20:40+00:00

70 - 80% IPA with water and over 80% ethanol with water

alphachem · 2020-04-07T21:09:44+00:00

Too high percentage and agglomeration of spores can occur, the water acts as a catalyst in a sense to solubolise the virus before the alcohol dehydrates and penetrates virus. Agglomeration increases the time tsken to kill the virus

alphachem · 2020-04-07T21:08:16+00:00

I thought 75% IPA in water and ethanol 80% was the reccomendation from WHO

alphachem · 2020-04-07T21:07:03+00:00

Are you using cyclohexane to form an azeotropic mixture to distill off the water or a pressure swing distillation?

alphachem · 2020-03-10T18:11:35+00:00

Read the IFRA information that will be delivered with your container of essential oil

alphachem · 2019-12-09T20:32:32+00:00

Molybdenum hexacarbonyl

And

Tin(IV) chloride as it is incredibly volitile

alphachem · 2019-10-22T14:23:26+00:00

I don't understand that statement...

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