Functional Group

Mode of Vibration

Wave number and Intensity

Bulk Oil

SSPN + Oil

=C-H

Stretching

3008.53 (S)

-

-C-H (CH2)

Stretching (asymmetric)

2924.58 (S)

2937.9 (S)

-C-H (CH2)

Stretching (symmetric)

2853.53 (S)

2861.3 (S)

-C=O (ester)

Stretching

1746.41 (S)

1748.1 (S)

-C=C (cis)

Stretching

1650.60 (W)

-

-C-H (CH2-CH3)

Bending (scissoring)

1463.59 (M)

1467.2 (M)

-C-H (CH3)

Bending (symmetric)

1377.61 (W)

-

-C-O, >CH2

Stretching, Bending

1161.52 (M)

1176.2 (M)

-(CH­2)n, -HC=CH (cis)

Bending (rocking)

722.99 (M)

731.9 (S)