Isopropyl alcohol for titration?

[Optimus Prime Junior Member Find all posts View Profile Close Optimus Prime]

Does anyone know where I would find reasonably-priced isopropyl alcohol for titration?

Back home (Canada), every drugstore had rubbing alcohol for like $3.00 a bottle. I went to a pharmacy here and their "rubbing alcohol" was 2% methylated spirits.

Finally, I went to Bunnings and got 100% isopropyl alcohol, but it was $11 for 125mL

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Isopropyl alcohol for titration?

Just use ethanol (methylated spirits) if you have liquid oils. Works fine for the titration.

Regards,
Tony

[Optimus Prime Junior Member Find all posts View Profile Close Optimus Prime]

Re: Isopropyl alcohol for titration?

Will that work for oils that are solid at room temperature as well?

[Qwarla Senior Member Find all posts View Profile Close Qwarla]

Re: Isopropyl alcohol for titration?

It will. For solid fats you are going to have to heat them up first so you can ensure they are throughly mixed before drawing the sample.

Then when actually doing the titration if the oil starts to go solid again bung it in the microwave. But only nuke it until you see the very first signs of any bubbling. It won't take much.