Oxidation, Thermal, and Storage Stability Studies of Jatropha Curcas Biodiesel

Table 13

Predicted models for IP, Ins, and 𝐸_𝑎.

S. no.	Metal	Predicted model
1	Fe	Ins=∗𝑀0.5+7059.618−1872.1∗311301−7∗10^−4∗𝐴+0.16273∗𝑀−2.33333∗10^−4∗𝐴∗𝐴^2+6.13636∗10^−3∗𝑀^2𝐸𝑎=∗𝑀43.−6758.49891+920.0∗910015−57∗𝐴−10.73288∗𝑀+5.23333∗10^−3∗𝐴∗𝐴^2−0.42273∗𝑀^2
2	Ni	Ins=∗𝑀0.5+9768.188−6877.9∗341304−7∗10^−4∗𝐴+0.25197∗𝑀−2.66667∗10^−4∗𝐴∗𝐴^2−0.019318∗𝑀^2𝐸𝑎=∗𝑀46.−6864.22470+960.0∗719060−59∗𝐴−26.89727∗𝑀+0.026567∗𝐴∗𝐴^2+2.60114∗𝑀^2
3	Mn	Ins=∗𝑀0.6+0165.629−1982.0∗701701−7∗10^−4∗𝐴+0.28455∗𝑀−3.0∗10^−4∗𝐴∗𝐴^2−0.024773∗𝑀^2𝐸𝑎=∗𝑀45.−4869.35921+210.0∗813002−57∗𝐴−29.82515∗𝑀+0.027333∗𝐴∗𝐴^2+3.33091∗𝑀^2
4	Co	Ins=∗𝑀0.6+5188.320−8098.9∗841805−7∗10^−4∗𝐴+0.33379∗𝑀−2.66667∗10^−4∗𝐴∗𝐴^2−0.040227∗𝑀^2𝐸𝑎=∗𝑀43.−2160.69103+790.0∗819032−53∗𝐴−36.88318∗𝑀+0.029667∗𝐴∗𝐴^2+5.31159∗𝑀^2
5	Cu	Ins=∗𝑀0.6+3369.248−7888.5∗501501−7∗10^−4∗𝐴+0.51015∗𝑀−4.0∗10^−4∗𝐴∗𝐴^2−0.098409∗𝑀^2𝐸𝑎=∗𝑀40.−3378.44883+590.0∗917057−59∗𝐴−45.83288∗𝑀+0.031867∗𝐴∗𝐴^2+8.00977∗𝑀^2