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Table 1 Chemical composition of LS4, NS4, and KS4 anhydrous glasses

From: Water and magmas: insights about the water solution mechanisms in alkali silicate melts from infrared, Raman, and 29Si solid-state NMR spectroscopies

   SiO2 Li2O Na2O K2O
  nom. mol % 80.00 20.00 0.00 0.00
LS4 nom. wt. % 88.94 11.08 0.00 0.00
  meas. wt. % 88.77 (94) 11.23 (75) n.a. n.a.
  nom. mol % 80.0 0.00 20.00 0.00
NS4 nom. wt. % 79.50 0.00 20.50 0.00
  meas. wt. % 80.38 (36) n.a. 19.62 (31) n.a.
  nom. mol % 80.0 0.00 0.00 20.0
KS4 nom. wt. % 71.84 0.00 0.00 28.16
  meas. wt. % 71.16 (49) n.a. n.a. 28.84 (28)
  1. nom. mol %, nom. wt. %, and meas. wt. % refer respectively to the nominal compositions in mol and wt. % and to the measured composition in wt. %. Chemical compositions are from Le Losq et al. (2015a). Errors are given at the 1σ confidence interval