sign in sign up
<<
Home , Carnauba wax

Table of Content 22/10/2013 Table of Content

Carnauba - Wikipedia, the free encyclopedia Carnauba wax - Wikipedia, the free encyclopedia 2

toc 1 / 3 Carnauba wax - Wikipedia, the free encyclopedia 22/10/2013

Carnauba wax - Wikipedia, the free encyclopedia Create account Log in

Article Talk Read Edit View history Search Carnauba wax From Wikipedia, the free encyclopedia

Carnauba (/kɑːrˈnɔːbə/ or /kɑːrˈnaʊbə/, carnaúba, Portuguese pronunciation: [kaʁnɐˈubɐ]), also called wax and Main page palm wax, is a wax of the leaves of the palm , a plant native to and grown only in the Contents northeastern Brazilian states of Piauí, , and .[1] It is known as "queen of "[2] and in its Featured content pure state, usually comes in the form of hard yellow-brown flakes. It is obtained from the leaves of the carnauba palm Current events by collecting and drying them, beating them to loosen the wax, then refining and bleaching the wax. Random article Donate to Wikipedia Contents [hide] Interaction 1 Composition 2 Properties Help 3 Production and Export About Wikipedia 4 Technical characteristics Community portal 5 References Recent changes 6 External links Contact page Carnauba wax Toolbox Composition [edit] Print/export Carnauba consists mostly of aliphatic (40 wt%), diesters of 4-hydroxycinnamic acid (21.0 wt%), ω- Languages 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 اﻟﻌرﺑﯾﺔ [3] Català methoxycinnamic acid. Česky Carnauba wax is sold in several grades, labeled T1, T3, and T4, depending on the purity level. Purification is Dansk accomplished by filtration, centrifugation, and bleaching. Deutsch Español Properties [edit] Français Carnauba palm Italiano Carnauba wax can produce a glossy finish and as such is used in automobile waxes, shoe polishes, dental floss, food Lietuvių products such as sweets, instrument polishes, and floor and furniture waxes and polishes, especially when mixed with Magyar and with . Use for paper coatings is the most common application in the United [citation needed] Nederlands States . It was commonly used in its purest form as a coating on speedboat hulls in the early 60's to Polski enhance speed and aid in handling in salt water environments. It is also the main ingredient in , Português combined with oil. Русский Because of its hypoallergenic and emollient properties as well as its shine, carnauba wax appears as an ingredient in Српски / srpski many formulas where it is used to thicken , eyeliner, mascara, eye shadow, foundation, deodorant, Svenska various skin care preparations, sun care preparations, etc.[citation needed] It is also used to make cutler's . Українська It is the finish of choice for most briar tobacco or smoking pipes. It produces a high gloss finish when buffed on to Edit links wood. This finish dulls with time rather than flaking off (as is the case with most other finishes used). Sweets coated with carnauba wax Although 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 is also used in the pharmaceutical industry as a tablet-coating agent. Adding the carnuaba wax aids in the swallowing of tablets for patients. 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. The wax and tablets are then tumbled together for a few minutes before being discharged from the tablet-coating machine. In 1890, Charles Tainter patented the use of carnauba wax on phonograph cylinders as a replacement for a mixture of paraffin and beeswax. Carnauba wax may be used as a mold release agent for manufacture of fibre-reinforced plastics. An aerosol mold release agent is formed by dissolving carnauba wax in a solvent. Unlike silicone or PTFE, canrnauba is suitable for use with liquid epoxy, epoxy molding compounds (EMC), and some other plastic types and generally enhances their properties[citation needed]. Carnauba wax is not very soluble in chlorinated or aromatic hydrocarbons.[4] Carnauba is used in melt/castable explosives to produce an insensitive explosive formula such as Composition B, which is a blend of RDX and TNT.

Production and Export [edit] In 2006, Brazil produced 22,409 tons of carnauba wax, of which 14% was solid wax, and 86% was in powder form. [5] There are 20-25 exporters of carnauba wax in Brazil who buy the carnauba wax from middlemen or directly from farmers. The exporters refine the wax before exporting it to the rest of the world. The four largest exporters of carnauba wax are Pontes, Brasil Ceras, Foncepi, and Carnauba do Brasil, who together account for around €25 million of the export market. According to the Brazilian Ministry of Development, Industry and Foreign Trade, the major destinations for exported carnauba wax are: USA (25%) (10-15%) Japan (15-25%) (5%) (5%) other destinations (18%) Technical characteristics [edit] INCI name is Copernicia cerifera (carnauba) wax is E903. Melting point: 82–86 °C (180–187 °F), among the highest of natural waxes, higher than beeswax, 62-64C. Relative density is about 0.97 It is among the hardest of natural waxes. It is practically insoluble in water, soluble on heating in ethyl acetate and in xylene, and practically insoluble in ethyl alcohol. References [edit] 1. ^ Steinle, J. Vernon (September 1936). "Carnauba wax: an expedition to its source". Industrial & Engineering Chemistry 28 (9): 1004–1008. doi:10.1021/ie50321a003 . 2. ^ Parish, Edward J.; Terrence L. Boos; Shengrong Li (2002). "The Chemistry of Waxes and Sterols". In Casimir C. Akoh, David B. Min. Food lipids: chemistry, nutrition, and biochemistry (2nd ed.). New York: M. Dekker. p. 103. ISBN 0-8247-0749-4. 3. ^ Uwe Wolfmeier,Hans Schmidt, Franz-Leo Heinrichs, Georg Michalczyk, Wolfgang Payer,Wolfram Dietsche, Klaus Boehlke, Gerd Hohner, Josef Wildgruber http://en.wikipedia.org/wiki/Carnauba_wax 2 / 3 Carnauba wax - Wikipedia, the free encyclopedia 22/10/2013 "Waxes" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a28_103 . 4. ^ Apps, E. A. (1958). Printing Ink Technology. London: Leonard Hill Books ltd. p. 86. 5. ^ [1] , Report on the production of carnauba wax.

External links [edit] Botanical description - from the Mildred E. Mathias Botanical Garden Carnauba wax data sheet - from the UN Food and Agriculture Organization Carnauba Wax Background Papert - published repport from field work.

v · t · e · E numbers [show] v · t · e · Non-timber forest products [show]

Categories: Waxes Food additives Cosmetics chemicals

This page was last modified on 19 July 2013 at 11:09. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Mobile view

http://en.wikipedia.org/wiki/Carnauba_wax 3 / 3