![]() The wax and tablets are then tumbled together for a few minutes before being discharged from the tablet-coating machine. A very small amount (less than a hundredth of one percent by weight, i.e., 30 grams for a 300 kg batch) is sprinkled onto a batch of tablets after they have been sprayed and dried. Adding the carnauba wax aids in the swallowing of tablets for patients. It is also used in the pharmaceutical industry as a tablet-coating agent. ![]() This finish dulls with time rather than flaking off (as is the case with most other finishes used).Īlthough too brittle to be used by itself, carnauba wax is often combined with other waxes (principally beeswax) to treat and waterproof many leather products where it provides a high-gloss finish and increases leather’s hardness and durability. It produces a high gloss finish when buffed on to wood. It is the finish of choice for most briar tobacco or smoking pipes. It is also the main ingredient in surfboard wax, combined with coconut oil.īecause of its hypoallergenic and emollient properties as well as its shine, carnauba wax appears as an ingredient in many cosmetics formulas where it is used to thicken lipstick, eyeliner, mascara, eye shadow, foundation, deodorant, various skin care preparations, sun care preparations, etc. It was commonly used in its purest form as a coating on speedboat hulls in the early 1960s to enhance speed and aid in handling in salt water environments. Use for paper coatings is the most common application in the United States. insoluble in ethyl alcohol.Ĭarnauba wax can produce a glossy finish and as such is used in automobile waxes, shoe polishes, dental floss, food products such as sweets, instrument polishes, and floor and furniture waxes and polishes, especially when mixed with beeswax and with turpentine. It is practically insoluble in water, soluble on heating in ethyl acetate and in xylene, and practically. It is among the hardest of natural waxes. Melting point: 82–86 ☌ (180–187 ☏), among the highest of natural waxes, higher than beeswax, 62–64C. INCI name is Copernicia cerifera (carnauba) wax ![]() Purification is accomplished by filtration, centrifugation, and bleaching. Distinctive for carnauba wax is the high content of diesters as well as methoxycinnamic acid.Ĭarnauba wax is sold in several grades, labeled T1, T3, and T4, depending on the purity level. The compounds are predominantly derived from acids and alcohols in the C26-C30 range. 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.Ĭarnauba 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%). It usually comes in the form of hard yellow-brown flakes. Carnauba wax is a wax of the leaves of the palm Copernicia prunifera, a plant native to and grown only in the northeastern Brazilian states of Piauí, Ceará, and Rio Grande do Norte. ![]()
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