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Mocon -- klon Xtola z 2-letnią trwałością
: 29 maja 2013, 16:01
autor: JaZ99
: 29 maja 2013, 18:44
autor: wosk
Ciekawa alternatywa, tylko to obniżenie czułości... A co to jest Dimezone S, da się to kupić u nas?
: 03 cze 2013, 10:42
autor: JaZ99
Dimezone S, czyli 13047-13-7 lub 4-Hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone albo C11H14N2O2. Może być ciężko.
Autor formuły opublikował aktualizację:
Some good news about longevity testing of the concentrate:
It's been six months in the refrigerator, half full and opened once a month, and still no evidence of yellowing.
I have some D316 and Mocon in the refrigerator and freezer. The bottles of D316 are half full, and I've been opening them once a month for a few minutes to simulate typical hobbyist usage. It's been six months, and there's still no evidence of yellowing (oxidation) visible in a glass eyedropper. For comparison, when stored at room temperature and *not* opened, these glycol-based ascorbate concentrates start yellowing after 2-3 months. Evidently, they like to be kept cold.