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Author: Subject: Cleaning glassware and other equipment

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[*] posted on 1-7-2021 at 22:31
Sparkling Test Tubes

I use a lot of these one way or another. And it is annoying when I grab a handful and they look kind of smeary.

Lie them flat in a container. (I used an ice cream container.) Sprinkle liberally with sodium percarbonate. Pour a jug of boiling water over the top. When the fizzing stops, extract and enjoy.

Probably an old trick given that percarbonate is used to sanitise beer bottles. Probably extends to other glassware as well.
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Herr Haber
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[*] posted on 2-7-2021 at 00:57

"Other equipment"

Whenever I finish an ammonia bottle I drop my comb inside with a little bit of water.

Swirling it around for 30 seconds gives better resulsts than a pressure washer.

The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
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