11 Jul
2000
11 Jul
'00
2:19 a.m.
Interestingly enough, my "IBM Tape Unit
Cleaner" (the real offical stuff!)
says it contains Trichlorotrifluoroethane AND isopropyl alcohol. This is
stuff that I use on an 8809 drive, which is a top-loading, lift-the-cover
sort of a drive, much like a CDC (nee DEC) TU80... if it works for IBM, I
wouldn't be too concerned.
Stupid chemistry question from someone who took too many physics classes
and not enough chemistry:
What's the difference between trichlorotrifluoroethane and
1,1,2-trichloro-1,2,2,trifluoroethane? Are they different names
for the same stuff, or two different stuffs?
I have some of the 1,1,2-trichloro-1,2,2,trifluoroethane stuff (in the
form of Kodak film cleaner) and it has (from experience) different chemical
properties than alcohol. Isopropyl alcohol seems to loosen up laquer-based
paints; the 1,1,2-trichloro-1,2,2,trifluoroethane doesn't seem to touch
paint at all. So the difference may be important if you're cleaning an
assembly held together with a laquer-based adhesive.
Tim.