S. No Properties Crude Farmed Salmon Oil (Atlantic) Crude Seal Oil Crude Cod liver Oil Crude Wild Salmon Oil (Pacific)
1 pH 6.8 6.5 6.8 6.7
2 Ash content (%) 0.0045 0.0027 0.0037 0.0034
3 Acid value (mgKOH/g) 2.441 0.958 0.057 0.771
4 Iodine value 116.79 138.67 139.15 138.79
5 Saponification value (mgKOH/g) 185.85 184.61 179.55 176.19
6 p-Anisidinevalue 3.36 4.21 6.20 9.67
7 Peroxide value (meq/kg) 9.17 7.04 6.92 5.13
8 TOTOX Value 21.69 18.29 20.03 19.92
9 Free fatty acid (%) 1.23 0.48 0.03 0.39
10 Flash point (°C) 267.5 284.0 251.0 232.0
11 Kinematic viscosity (mm2/s, 40°°C) 29.35 26.08 27.46 26.79
12 Refractive index 1.47 1.48 1.48 1.48
13 Cetane number 49.39 44.67 45.39 46.05
14 Higher heating value (kJ/g) 39.00 38.88 38.92 38.90
Table 2: Chemical properties.