Re: Help with what I believe is a hardening issue

From: "T. E. Andersen" <postlister@microscopica.com>
Subject: Re: Help with what I believe is a hardening issue
Date: Wed, 10 Nov 2004 17:12:47 +0100

> Much better to just buy a small bottle of commercial formalin every
> now and then. Even p.a.-quality (p.a. = pro analysi) is not very
> expensive (about $18,-/liter here in Norway, probably less in the
> US).

Even better is to buy glutaraldehyde or synthesize
2,4-dichloro-6-hydroxy-s-triazine. The latter is also a very good
hardener extensively used in commercial products. I don't think you
can buy it from anywhere but you can synthesize pretty easily (for
this sort of things), especially if you can tolerate some carbonate or
phosphate buffer as the impurity.

--
Ryuji Suzuki
"You have to realize that junk is not the problem in and of itself.
Junk is the symptom, not the problem."
(Bob Dylan 1971; source: No Direction Home by Robert Shelton)