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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.