should I use isopropyl alcohol mixed with boric acid? it works the
All alcohols are bad to breathe, ingest or get on your skin period
end of story.
From a MSDS for Isopropyl Alcohol
Potential Health Effects
Produces irritation, characterized by a burning sensation, redness,
tearing, inflammation, and possible corneal injury.
May cause skin sensitization, an allergic reaction, which becomes
evident upon re-exposure to this material. Prolonged and/or repeated
contact may cause defatting of the skin and dermatitis. May cause
irritation with pain and stinging, especially if the skin is
May cause gastrointestinal irritation with nausea, vomiting and
diarrhea. May cause kidney damage. May cause central nervous system
depression, characterized by excitement, followed by headache,
dizziness, drowsiness, and nausea. Advanced stages may cause
collapse, unconsciousness, coma and possible death due to
Inhalation of high concentrations may cause central nervous system
effects characterized by headache, dizziness, unconsciousness and
coma. Inhalation of vapor may cause respiratory tract irritation.
May cause narcotic effects.
Prolonged or repeated skin contact may cause defatting and
dermatitis. May cause allergic skin reaction in some individuals."
Read the MSDS for the other alcohols and they as bad or worse.
Second issue the isopropyl alcohol you can easily buy is rubbing
alcohol this is 30% water this is no good for use as a fire coat as
it will not burn off. Pure isopropyl alcohol must be specifically
purchased if you want to try this.
Probably the "best" one to work with from a health aspect is ethyl
alcohol, the drawback is it is hard to get due to tax issues ( it is
the drinking variety) and can not hold as much boric acid in
solution as methyl alcohol. Methyl alcohol is highly toxic and is one
of the chemicals used to "denature" ethyl alcohol for sale as fuel or
shellac solvent. There are a host of other chemicals added to ethyl
alcohol along with the methyl alcohol some of which are gasoline,
isopropanol (isopropyl alcohol) and other solvents it depends on the
manufacturer as to what they chose to add to get around the tax
requirements. It is these other solvents that make me concerned
about use of denatured alcohol.
I do not believe pure isopropyl alcohol is a suitable substitute for
denatured ethyl alcohol but I have ordered some to see if it can
hold enough boric acid in solution to be workable. I will report
James Binnion Metal Arts