Tweet
I am going to be doing an extraction soon and I need to use an aprotic solvent first to remove the nonpolar things, followed by a protic solvent to extract the polar thing that I'm interested in. For the aprotic I'm thinking of using Naptha which contains petrolium ether. I don't want to pay $50 for 500ml of USP Ether. For the protic solvent I'm thinking of using heet (MeOH). The crude product will be in the MeOH and will be evaporated out. I'm not sure I can wash it so does anyone see a problem with using the solvents that I've mentioned?
-
-
MeOH:
The acute toxicity of methanol by ingestion, inhalation, and skin contact is low. Ingestion of methanol or inhalation of high concentrations can produce headache, drowsiness, blurred vision, nausea, vomiting, blindness, and death. In humans, 60 to 250 mL is reported to be a lethal dose. Prolonged or repeated skin contact can cause irritation and inflammation; methanol can be absorbed through the skin in toxic amounts. Contact of methanol with the eyes can cause irritation and burns. Methanol is not considered to have adequate warning properties.
Methanol has not been found to be carcinogenic in humans. Information available is insufficient to characterize the reproductive hazard presented by methanol. In animal tests, the compound produced developmental effects only at levels that were maternally toxic; hence, it is not considered to be a highly significant hazard to the fetus. Tests in bacterial or mammalian cell cultures demonstrate no mutagenic activity. -
I've asked Spidey before about using HEET....he is somewhat against it. I would think he is the man to consult on this issue....but I haven't heard from him in a long time? Where is he?Comment
-
I was wondering the same about Spidey & Sigmund. Heet isn't that great for injection prep, but this is an oral compound that has nothing to do with PH or AAS. I'll not go into detail...lol. In this application heet should be fine IMO. I just wanted to see what others thought.Comment
-
OK. I can't find Naptha anywhere. What I need is Petrolium Ether CAS#8030-30-6. Anyone know where I can get it?Comment
Comment