Numount [NBS substitute for Canada Balsam]

[MichaelG.]

I am unsure what it’s availability was outside the U.K. but Numount was a popular substitute for Canada Balsam; from Northern Biological Supplies.

It was initially well-received; but after a few years, slides prepared with it started to show characteristic crystallisation, which could be quite intrusive.

My reason for mentioning it now, is that I have just found an unused bottle of it at the back of a drawer.
... This has solidified [evaporation of Xylene] over the years; but it is beautifully clear, with not a sign of crystal formation.

Curious !

MichaelG.

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https://www.quekett.org/wp-content/uplo ... pplies.pdf
http://www.brunelmicroscopes.co.uk/cata ... sories.pdf

[BramHuntingNematodes]

Maybe it is intolerant of adulterants present in samples.

[MichaelG.]

Maybe it is intolerant of adulterants present in samples.

Good point !

MichaelG.
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P.S. ___ Here’s a previous discussion, for info.
viewtopic.php?t=5789