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Table 3 The main physico-chemical characteristics of β-nonylphenoxy (NF) polyethyleneoxy (n=3, 6, 9, 12, 16, 20) propionitriles [NF(EO) n –PN)]

From: Synthesis of nonionic-anionic colloidal systems based on alkaline and ammonium β-nonylphenol polyethyleneoxy (n = 3-20) propionates/dodecylbenzenesulfonates with prospects for food hygiene

No. Average oligomerization degree (n) Content of ethylene oxide (%) Content of nitrogen (%) Purity (%)
Determined Calculated Determined*) Calculated Determined Calculated Determined**)
1 2,99 3 37,23 37,50 3,95 3,98 99,27
2 5,98 6 54,27 54,54 2,87 2,89 99,40
3 9,03 9 63,84 64,28 2,25 2,27 99,32
4 12,02 12 70,38 70,59 1,87 1,88 99,71
5 16,12 16 75,98 76,46 1,53 1,52 99,43
6 20,34 20 79,86 80,24 1,27 1,28 99,62
  1. Legend: *) cleavage with hydriodic acid (d = 1.7-1.9); **) weighted average value reported simultaneously to the determined content of ethylene oxide and nitrogen.