Science Record

14

Table 1 ; ~

Reaction between equivalent quantity ratio of sebacic acid and normal-octyl alcohol

K-10? in (kg/equiv)?/2/min

0.8461 1.06 0.8442 1.45 0.8780 2.23

3.35

Table 2

Reaction between equivalent quantity ratio of sebacic acid and iso-octyl alcohol

K-10* in (kg/equiy)3/2/min

1 18 0.5902 1,92 2 18 0.7013 3.53 3 17 0.7570 5.20

Table 3

Reaction between equivalent quantity ratio of sebacic acid and normal-octyl alcohol at 150°C in the presence of 2.142 N sulfuric acid as catalyst

Exp. Sulfuric acid added t

No. mil | hr. e 1 0.015 4.0 0.9524 0.025 2.25 0.9538 3 0.035 2.0 0.9511

Table 4

Reaction between equivalent quantity ratio of sebacic acid and iso-octyl alcohol at 160°C in the presence of 6.4275 N sulfuric acid as catalyst

Sulfuric acid added ml

1 0.005 0.8739 2 0.010 0.8900 0.020 0.9032

The velocity constant of sebacic acid and normal-octyl alcohol as compared with that of sebacic acid and iso-octyl alcohol is about five times greater; this phenomenon has been explained by the theory of molecular structure. The activity energies for the reactions of sebacic acid with normal alcohol and for that with iso-octyl alcohol are 14 and 16 Keal. respectively.