Chemical to mix with water to increase evaporation rate.
Chemical to mix with water to increase evaporation rate.
(OP)
Hi all,
I have a process where we currently use a 50/50 mixture of water and isopropanol, and am looking to replace the isopropanol with something less flammable and toxic. The purpose of the isopropanol is simply to increase the evaporation rate of the mixture so it dries up quickly after a certain point in the process.
Does anyone have any ideas? One improvement would be to replace the isopropanol with denatured alcohol so it would be less toxic, but I'd preferably like to remove the fire hazard as well.
Thanks
I have a process where we currently use a 50/50 mixture of water and isopropanol, and am looking to replace the isopropanol with something less flammable and toxic. The purpose of the isopropanol is simply to increase the evaporation rate of the mixture so it dries up quickly after a certain point in the process.
Does anyone have any ideas? One improvement would be to replace the isopropanol with denatured alcohol so it would be less toxic, but I'd preferably like to remove the fire hazard as well.
Thanks





RE: Chemical to mix with water to increase evaporation rate.
But I see there are some HSE concerns with this solvent now - see if this suits your purpose and if your HSE folks will allow this with some procedural caveats.
RE: Chemical to mix with water to increase evaporation rate.
What you could use was a kind of vacuum drying or a fluid bed type dryer?
RE: Chemical to mix with water to increase evaporation rate.
RE: Chemical to mix with water to increase evaporation rate.
RE: Chemical to mix with water to increase evaporation rate.
This mixture is used as an light lubricant, where it is critical that the solution dries up quickly after application and does not leave a residue. I looked through some azeotrope data for water and did not find something that would work for my application.
I also came across some water-based VOC free vanishing oils, which might work for this use case.