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LeoChem, here's a link :http://umpir.ump.edu.my/867/1/Ahmad_Syauqi_Othman.pdf I would like to have an explanation why and how butanoic acid acts as a demulsifier. Thanks.

Some papers claim that adding acid (e.g. butanoic acid) to the water can demulsify a water in oil emulsion. I cannot find a good explanation why the acid would help. Any ideas about the mechanism ? Any links to more details ? Thanks.

Hi, I need some help with a basic statistics calculation. I have a bag with 70 'X's and 30 'O's. The X's and O's are free to combine with each other to give 'XX', 'OO' and 'XO' with equal probability for each pair formation. What will be the final distribution, i.e. how many 'XX', 'OO' and...

I selected copper because the exchanger temperature uniformity has to be very good. What other options would you suggest ?

Yes, you're right, I mean oxidation in air. If there are no alternatives, would copper surface treatment help ? Or replacing the copper by bronze ?

I need a metal (alloy) with the highest possible thermal conductivity to use as heat exchanger. I have tried pure copper, but I noticed severe temperature corrosion at 450°C. I have also tried nickel plated copper, but the nickel comes loose at sharp edges. Does anyone have a recommendation...