Carnauba wax

Carnauba (/kɑːrˈnɔːbə/ or /kɑːrˈnaʊbə/, carnaúba, Portuguese pronunciation: [kaʁnɐˈubɐ]), also called Brazil wax and palm wax, is a wax of the leaves of the palm Copernicia prunifera (Synonym: Copernicia cerifera), a plant native to and grown only in the northeastern Brazilian states of Piauí, Ceará, Maranhão, Bahia, and Rio Grande do Norte. It is known as "queen of waxes" and in its pure state, usually comes in the form of hard yellow-brown flakes. It is obtained from the leaves of the carnauba palm by collecting and drying them, beating them to loosen the wax, then refining and bleaching the wax.

Carnauba consists mostly of aliphatic esters (40 wt%), diesters of 4-hydroxycinnamic acid (21.0 wt%), ω-hydroxycarboxylic acids (13.0 wt%), and fatty acid alcohols (12 wt%). The compounds are predominantly derived from acids and alcohols in the C26-C30 range. Distinctive for carnauba wax is the high content of diesters as well as methoxycinnamic acid.

Carnauba wax is sold in several grades, labeled T1, T3, and T4, depending on the purity level. Purification is accomplished by filtration, centrifugation, and bleaching.

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