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Carnauba Wax Top Previous Next Carnauba Wax » Carnauba Wax is obtained from the leaves of Copernicia cerifera Mart. (Fam. Palmae). Packaging and storage— Preserve in well-closed containers. Melting range, Class II 741 : between 80 and 86 . Acid value— Weigh accurately 3 g into a 250-mL flask attached to a reflux condenser, add 50 mL of a mixture of isopropyl alcohol and toluene (5:4), and boil gently until the wax is completely dissolved. Remove the flask from the condenser, add about 1 mL of phenolphthalein TS , and immediately titrate with 0.5 N alcoholic potassium hydroxide VS to a faint, reddish yellow color. [ NOTE— Do not allow solution to cool; titrate at warm temperature after refluxing.] Calculate the acid value as the number of mg of potassium hydroxide required to neutralize the free acids in 1 g of Carnauba Wax. The acid value so obtained is between 2 and 7. Saponification value 401 To the solution from the test for Acid value add 15.0 mL of
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  • Winter '15
  • Carlos Rubio
  • Heavy metal music, wax, acid value

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