Archived posting to the Leica Users Group, 2002/06/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I looked in my Handbook of Chemistry and Physics, a book I hadn't cracked since I abandoned physics for computers in 1958. It gives the molecular weight of anhydrous sodium thiosulphate as 158.11 and that of the Na2S2O3.5H2O as 284.18. Therefore, the equivalent of 100 gm of "hypo" would be 63.7 gm of the anhydrous compound. Herb - -- Herbert Kanner kanner@acm.org 650-326-8204 Do not meddle in the affairs of cats, for they are subtle and will pee on your computer! - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html