okay here's the deal:
i need to plan and synthesise hydrated magnesium sulphate crystals from magnesium carbonate.
i am given MgCO3, H2SO4, distilled water, ethanol, filter paper (and other measuring thingos)
how the hell do i do this? [i needto know before monday!]Organikum - 30-3-2005 at 23:19
Shouldn´t be here I believe but wtf..
Add the carbonate to diluted H2SO4, filter, wash the crystals with ethanol, done.cyclonite4 - 31-3-2005 at 00:47
OMG... is this a big coincidence, OR do you go to the EXACT same school as me. I have the EXACT practical due to be planned by the EXACT same date.
Let me guess... the H2SO4 they are supplying is.... 1 M? Thats what I got. How did you find this forum... maybe I forgot to sign out? 12AX7 - 31-3-2005 at 03:26
Quote:
Originally posted by melon
i need to plan and synthesise hydrated magnesium sulphate crystals
Step 1. Get into car, start engine etc.
Step 2. Locate "Epsom Salts" at grocery store, drug store, etc.
Step 3. Open carton.
Synthesis complete
Timcyclonite4 - 31-3-2005 at 04:26
I already thought of that.
But this is a monitored synthesis thing, a teacher would likely notice you placing MgSO4.7H2O from an epsom salts packet into the sample bottle. chloric1 - 31-3-2005 at 07:38
Yep, maybe that is why the teacher picked such an easy synthesis to test your ethics and to see if you can complete a simple proceedure. If it helps
any sulfates really dont dissolve well in alcohol. I used espon salts in a sythesis and when the sulfates contaminated my product I dissolved in
denatured alcohol and had a nice sulfate deposit on the bottom. my product was reasonalby pure enough for my use but contained alchol of
crystalization. So, after that was gone, it took up water like a crack whore and
turned into a oatmeal like mash!
Oh yeah, if you all wondered what I was talking about, Magnesium bromide hexahydrate was my desired product. I have several pictures and I a
detailed account but I want to try a better yeilding synthesis first before I post my experiments.
So, after that was gone, it took up water like a crack whore and
turned into a oatmeal like mash!