Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Engineering technology Topic : Precision investment casting Prepared by: Ing. Elena Nová. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002By rosa
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Waxes. Waxes are esters that combine a long-chain fatty acid with a long-chain alcohol (14-30 carbons in each chain, unbranched) Plants produce waxes on the surfaces of their leaves, stems and fruits to prevent water loss and protect against pests
Definition : Waxes are solid simple lipids containing a monohydric alcohol (with a higher molecular weight than glycerol) esterified to long-chain fatty acids. Examples of these alcohols are cetyl alcohol, cholesterol, vitamin A or D . Properties of waxes:
Waxes. David S. Seigler Department of Plant Biology University of Illinois Urbana, Illinois 61801 USA firstname.lastname@example.org http://www.life.illinois.edu/seigler. Waxes - Outline. Importance Botanical o Several families Economics Chemistry Isolation. Reading. CHAPTER 9 IN THE TEXT.
MUMLAR (WAXES). Yrd. Doç. Dr. Seda CENGİZ. Mumlar genel olarak oda ısısında katı halde bulunan termoplastik materyaller olarak tanımlanır. diş hekimliğinde kullanılan mumların içinde şu maddeler bulunabilir:. -doğal ve sentetik mumlar -zamklar (gums) -gliseritler(fats) -yağlar
Dental Waxes. DA 122 Dental Materials. Wax Groups. Pattern Processing Impression. Pattern Waxes. Hard wax Inlay casting wax: used in crown and bridge Dark-colored sticks of wax Melted and applied to die, creates wax pattern used in making crowns and bridges
Dental waxes. D. Zuber. WAXES. Waxes are thermoplastic materials , which are normally solid at room temperature but melt without decomposition into liquids.
Lipids fats, oils, waxes. Function: energy storage C,H,O – but H to O ratio high *Higher proportion of C-H bonds than carbs. Thus, store more energy per unit of mass Nonpolar – Thus, insoluble in H 2 O. Fats - Triglycerides. Glycerol + 3 Fatty acids
Oils, fats and waxes. Waxes: Composed by long Carbon and Hydrogen chains that are highly hidrophobic. They are saturated. Are found in: hair, insect skeletons, leaves, stems and beehives. FIGURE 3-12b Lipids. Bees build their homes with wax hexagons. . Phospholipids.