Flammable liquid ultrasonic cleaners may often be required when contaminants are difficult to remove and where residues that may remain after using conventional water-based biodegradable cleaning solutions are unacceptable. Flammable liquid (also called volatile solvent) ultrasonic cleaners can overcome these challenges as we will explain later in this post.
But first a short tutorial.
What is a Flammable Liquid?
They are not all exactly the same. Flammable liquids have different flashpoints. In brief, the lower the flashpoint the more flammable they are, which is an important consideration when specifying an ultrasonic cleaner for flammable liquids.
The American Chemical Society publishes a table of common organic solvents that includes flash points. Examples of low flash point volatile solvents are 1-propanol at 59⁰F, acetone at -4⁰F and toluene at 39⁰F. Solvents with higher flashpoints include NEP (N-Ethyl-2-pyrrolidone) or NMP (N -Methyl-2-pyrrolidone) at or above 131˚F.
It’s the Fumes, Stupid!
In chemical terms … Read the rest