How to lower Iodine number in Kernel oil

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I 've mix the kernel oil (PKO) and crude coconut oil (CNO), but the iodine value just 13, i need to reach out the iodine value till 10, how come? hidrogenation seems to high price, i want another treatment that simple and low prices to lower the iodine number
 
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jedishrfu said:
Welcome to PF.

Have you tried blending with another oil, like hydrogenated coconut oil?
i've tried to blend with cno (crude coconut oil), but it has 13 iodine value. if i blend with vco, the cost really high. so i want to decrease iodine value with chemical reaction, that cheap and simple. i dont want hydrogenation l, because it would change the oil into solid
 
Trick is, iodine number correlates with other properties - so I wonder if every method of lowering it doesn't carry a risk of solidifying the oil.

Carbon chains in saturated fatty acids are mostly straight, which means high intermolecular forces and high low solidification temperature. Double bonds break this pattern, lower intermolecular forces and make unsaturated oils liquid (at a given temperature). Iodine number is a measure of the amount of double bonds - so the lower it is, the less double bonds there are, and the higher chances of the oil to become solid.
 
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i got it, thank you so much
Borek said:
Trick is, iodine number correlates with other properties - so I wonder if every method of lowering it doesn't carry a risk of solidifying the oil.

Carbon chains in saturated fatty acids are mostly straight, which means high intermolecular forces and high solidification temperature. Double bonds break this pattern, lower intermolecular forces and make unsaturated oils liquid (at a given temperature). Iodine number is a measure of the amount of double bonds - so the lower it is, the less double bonds there are, and the higher chances of the oil to become solid.
 
Borek said:
Trick is, iodine number correlates with other properties - so I wonder if every method of lowering it doesn't carry a risk of solidifying the oil.

Carbon chains in saturated fatty acids are mostly straight, which means high intermolecular forces and high solidification temperature. Double bonds break this pattern, lower intermolecular forces and make unsaturated oils liquid (at a given temperature). Iodine number is a measure of the amount of double bonds - so the lower it is, the less double bonds there are, and the higher chances of the oil to become solid.
Not quite every.
Another method would be picking lower fatty acids. There have shorter chains to pack, so they have lower melting point even without having double bonds.
Coconut oil is oil despite having low unsaturated acid content, because it has lower saturated acids instead of higher unsaturated acids as in other oils.
But I don´t know if there are natural fats with even smaller fatty acids than coconut oil. Well, butter has some butyric acid, but a small fraction so it ends up melting higher than coconut oil.
Another substance I read about is fractionated coconut oil - what happens to its iodine number?