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Table 1 Mutual purity check of HMDSO and dioxane by proton NMR (d1 = 20 s, scan = 32) in CDCl3

From: A 1H NMR method for the estimation of hydrogen content for all petroleum products

No. of entry Dioxane (Fluka, 99.99 %) HMDSO (Aldrich, >99.5 %)
C, 54.53; H, 9.15; O, 36.32 (wt%) C, 44.38; H, 11.17; O, 9.85; Si, 34.59 (wt%)
Weight taken (mg) Weight (mg) by NMRa H, by NMRa (wt%) Weight taken (mg) Weight (mg) by NMRb H, by NMRb (wt%)
Solution 1 12.06 11.99 9.10 14.85 14.92 11.19
Solution 2 10.18 10.20 9.15 11.39 11.4 11.21
Solution 3 9.08 9.14 9.14 15.57 15.65 11.14
  1. aHMDSO as reference standard
  2. bDioxane as reference standard