Posted March 21st, 2010
by admin
Linda asked: We did it in class and saw a clear layer of what I assume is the organic solvent(light petroleum) on the top and the underneath layer was murky white. Why does this happen?
Tags: Chlorine Water, Organic Solvent, Petroleum
Posted in Chemistry | 1 Comment »
Posted December 14th, 2009
by admin
Leeenda asked: I’m measuring viscosity of molten ceramic slurries of paraffin wax and stearic acid. It can make quite a mess, and I need some kind of organic solvent to remove the bits have leaked out and cool down and solidify on the machine.
Scraping it off works, but it leaves smears.
Can anyone recommend an organic solvent? The slurries are are non-polar, so I’m assuming I’ll need a non-polar solvent. Something simple that I can “borrow” from the Chemistry lab (preferably in a squeezie bottle… you know how the common organic solvents are usually in them like Acetone and IPA…)
Acetone doesn’t work… Toluene? Heptane?
Tags: Organic Solvent, Organic Solvents, Stearic Acid
Posted in Chemistry | 2 Comments »
Posted March 9th, 2009
by admin
help?(: asked: This is from a chromatography lab. The organic solvent is made up of 92% petroleum ether and 8% acetone.
Another question:
Why do ink pigments separate in water and not in the organic solvent?
Tags: Green Leaves, Organic Solvent, Pigments
Posted in Botany | 2 Comments »
