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4 revisions	Mei Backof at Aug 09, 2023 06:28 PM	Compared with
Aug 09, 2023 Mei Backof May 05, 2020 awhtou Aug 07, 2018 dml2018 Jul 23, 2018 Stanford University Archives	5 August 12, 1950 Preparation of Na3 Rh(NO2)6 m.w. [molecular weight] NaNO2 = 69.01 m.w. RhCl3 = 209.3 a.w. [atomic weight] Rh = 102.9 One gram of commercial RhCl3 was dissolved in 75 cc. of 1 m. NaNo2 & 5 cc. of 6 m. HC2H3O2; the mixture was heated at 60-90 degrees for 5 minutes. (A.A. Noyes & W. C. Bray, A sysem of qualitative analysis for rare elements, The MacMillan Company, 1948) Sept. 2 - Sept. 12 Search for As, Zn, using KAsF6 & Zn(CH)4 + HF concentrated in water bath. Zn 3.41 ML -> 3.015 ML at Ho = 11400 G	5 August 12, 1950 Preparation of Na3 Rn(NO2)6 m.w. [molecular weight] NaNO2 = 69.01 m.w. RnCl3 = 209.3 a.w. [atomic weight] Rn = 102.9 One gram of commercial RhCl3 was dissolved in 75 cc. of 1 m. NaNo2 & 5 cc. of 6 m. HC2H3O2; the mixture was heated at 60-90 degrees for 5 minutes. (A.A. Noyes & W. C. Bray, A sysem of qualitative analysis for rare elements, The MacMillan Company, 1948) Sept. 2 - Sept. 12 Search for As, Zn, using KAsF6 & Zn(CH)4 + HF concentrated in water bath. Zn 3.41 ML -> 3.015 ML at Ho = 11400 G

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