Organik Kimya
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Laboratory > Melting Point Determinations
INTRODUCTION The purpose of experiment is melting point determinations of any substances and effect of the impurities on the melting point. PROCEDURE First we will select the a known substances and determine its melting point.Then we will repeat the melting point determination of the knownsubstance until good results are obtained.We will contaminate the known substance with a foreign substance.And then we will determine its melting point and observe the effect that contamination has on the sharpness of a melting point.Finally we will obtain an unknown substance and…
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Laboratory > Preparation of Ethylacetate
INTRODUCTION Ethyl acetate is the organic compound with the formula CH3CH2OC(O)CH3. This colorless liquid has a characteristic, not unpleasant smell like certain glues or nail polish removers, in which it is used. As the ester derived from ethanol and acetic acid, EtOAc, as it is commonly abbreviated, is manufactured on a large scale for use as a solvent. Ethyl acetate is a moderately polar solvent that has the advantages of being volatile, relatively non-toxic, and non-hygroscopic. It is a weak hydrogen bond acceptor, and only a weak donor. Ethyl acetate…
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Laboratory > Purification of Organic Compounds
INTRODUCTION In this experiment distillation which is a seperation and purification method of compounds was used. Distillation is based on the fact that the vapour of a boiling mixture will be richer in the components that have lower boiling points.Therefore, when this vapour is cooled and condensed, the condensate will contain more volatile components. At the same time, the original mixture will contain more of the less volatile material. Distillation columns are designed to achieve this separation efficiently. Although many people have a fair idea what “distillation” means, the…
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Laboratory > Water Purification Steps
What specific water purification methods are there? Water that is distributed in cities or communities is treated extensively. Specific water purification steps are taken, in order to make the water meet current water standards. Purification methods can be divided up into settling of suspended matter, physical/ chemical treatment of colloids and biological treatment. All these treatment methods have several different applications. How do specific water purification methods work? 1 Physical water purification Physical water purification is primarily concerned with filtration techniques. Filtration is a purification instrument to remove solids from…
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Laboratory – Recrystallization
INTRODUCTION The most common method of purifying solid organic compounds is by recrystallization.In this experiment an impure solid compound will be dissolved in a solvent and then allowed to slowly crystallize out as the solutions cools. PROCEDURE First 50-100 ml of deionized water will be heated to boiling on a hot plate at Bunsen burner.While waiting for the water to boil,the impure compound will be weighed and transferred to a clean 125 ml Erlenmeyer flask.The mixture will be swirled and then placed on the hot plate to heat the solution…
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Laboratory > Steam Distillation
METHODS: In this experiment steam distillation method was used. MATERIALS: Distilled water, organic matter (pieces of mint, lemon and apple). Erlenmeyer flask, clamp holder, delivery tube, distillation adapter, water-cooled condenser, Florence flask and Bunsen condenser clamp. DISCUSSION: In this experiment, the pieces of lemon were used. This organic compound was distilled with steam distillation. Steam distillation is an ingenious technique for the separation of slightly volatile water insoluble substances from nonvolatile materials. In a mixture of two completely immiscible liquids, each liquid exerts its own characteristic vapor pressure independently of…
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Molekül Geometrisi ( Yrd.Doç.Dr. Ahmet Emin ÖZTÜRK )
Molekül Geometrisi konu özeti …
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Organik Kimya
Organik kimya, karbon bileşikleri kimyasıdır. -Karbon bileşikleri, dünyada yaşamın temelidir. -Canlı organizmalardan elde edilebilen bileşikler “organik bileşikler” olarak tanımlanmışlardır. Canlı olmayan kaynaklardan elde edilen bileşikler “inorganik veya anorganik bileşikler” olarak tanımlanabilir. Doğal Ürün Olan Selüloz Selüloz trİasetat Polİmerİ Selüloz Polİmerİ Mentol, nane esansından elde edilen, organik bir alkol. Mentol, viks olarak bilinen ve solunum yolları ağrılarında ve tahribatlarında kullanılan kremin içinde bulunan başlıca aktif maddelerdendir. Lokal anestezi özelliğine de sahip olan mentol, kas ağrısı, eklem burkulmaları gibi durumlarda kullanılan bazı kremlerin içerisinde de bulunur. Hemoglobin, Hamur işlerinde kullanılan vanilyanın ham maddesi…
