tristearin

Submitted by amnak0504 on Thu, 04/16/2015 - 20:38
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Koliko je potrebno kilograma tristearina, a koliko kg NaOH za dobijanje 140 kg sapuna?

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milicaradenkovic - Thu, 04/16/2015 - 21:20

C3H5(C18H35O2)3+3NaOH---------->C3H5(OH)3+3C17H35COONa

n(sapuna)=m/Mr=140*10(3)/306=457.516 mol

n(NaOH)=n(sapuna)=457.516 mol

m(NaOH)=n(NaOH)*Mr=457*516*40=18.3 kg

n(tristaerina)=n(sapuna)/3=457.516/3=152.5050 mol

m(tristearina)=n(tristearina)*Mr=152.505*890=135.729 kg