"Preparation of chloroform" Essays and Research Papers

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    Bleaching Powder

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    hypochlorite is a chemical compound with formula Ca(ClO)2. It is widely used for water treatment and as a bleaching agent. This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). Preparation It is manufactured by the calcium process: ~\mathrm{2Cl_2 + 2Ca(OH)_2\longrightarrow \ Ca(OCl)_2 + CaCl_2 + 2H_2O}. "Bleaching powder" is a mixture of calcium hypochlorite (Ca(OCl)2) and the basic chloride CaCl2‚ H2O with some slaked lime‚

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    Manganese (III) complex

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    low energy as C=O has weaken because of the presence of back-bonding in this complex. Metal ion has donated/shared its electrons to the empty pi star orbitals of C atom. This has significant effect on C=O strength hence low energy absorption. Preparation of- Manganese(III) tris(acetylacetonate) Abstract In this experiment Manganese (III) tris (acetylacetonate) - [MnIII(acac)3] is prepared using manganese chloride‚ sodium acetate and acetylacetone‚ further analysis were done to find the percentage

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    Cassava Peel Film Study

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    was milled and sieved until the size of 100 mesh was obtained. The supporting chemical substances such as potassium hydroxide (KOH)‚ sodium hydroxide (NaOH)‚ acetic acid (CH3COOH)‚ calcium nitrate tetrahydrate (Ca(NO3)2.4H2O)‚ toluene (C6H5CH3)‚ chloroform (CHCl3)‚ diethanolamine ((C2H4OH)2NH)‚ sodium chloride (NaCl)‚ diethyl eter ((C2H5)2O)‚ methanol (CH3OH)‚ sodium methoxide (CH3ONa)‚ sodium sulphate (Na2SO4) were used in this study. The materials were laboratory grade (MERCK) and were purchased

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    in the multidisciplinary area of applied chemistry. The focus of this paper is on the phytochemical analysis and Anthelmintic activities‚ which include the extraction‚ isolation and characterization of active ingredients in botanicals and herbal preparations with the example of Seeds and leaves of Adenanthera Pavonina

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    Abstract:The Wittig Reaction is a nucleophilic addition in which an alkene is formed as a product. Both the E and Z isomers of the alkene result. Substituents on the aromatic aldehyde affect the E/Z ratio of products that form. In this experiment‚ a nitro group was used as the substituent in the ortho‚ meta and para positions‚ with benzaldehyde as the control. Each of the four aldehydes reacted with (carbethoxymethylene) triphenylphosphorane to produce ethyl cinnamate‚ ethyl-3-(2-nitrophenyl)acrylate

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    from tea and gain experience in chemical laboratory manipulation of plant materials. II Materials and Methods The materials used in this experiment are the following: * * 10 pieces of tea bags(20 g) * 175 distilled water * 30 mL Chloroform (2 sets of 30 mL) * 12.5g Sodium Carbonate * Sodium

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    review‚ an attempt has been made to give an overview of certain extractants and extraction processes with their advantages and disadvantages. Keywords: Medicinal plants‚ phytochemicals‚ extraction‚ solvent‚ screening. INTRODUCTION extracts. Such preparations have been popularly called Plant-derived substances have recently become of galenicals‚ named after Galen‚ the second century great interest owing to their versatile applications. Greek physician [2]. Medicinal plants are the richest bio-resource

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    Physical Chemistry CHM2330 Experiment F- Raoult ’s Law Experiment By: Sanah Assaad Student Number: 5267864 Partner: Jihad Arafa T.A: Didier University of Ottawa March 25‚ 2010 Objective: The purpose of this experiment is to study the total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult

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    Chem Lab Report

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    chloride CAS #10043-52-4 Appearance: white beads or powder Melting point: 782 C Boiling point: Vapour density: Vapour pressure: negligible Specific gravity: 2.15 Flash point: Explosion limits: Autoignition temperature: anhydrous chloroform (no stabilizer) CAS #67-66-3

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    Carbene Addition Lab

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    and facilitated the transport of the hydroxide ion from the aqueous phase to the organic phase. Expected spectral changes in IR and 13C-NMR Procedure To begin‚ 0.324g of cyclohexene was mixed with 1 ml of 50% aqueous sodium hydroxide‚ 1ml of chloroform and 0.040g of the phase transfer catalyst benzyltriethylammonium chloride. The reaction was stirred and heated at 40 degrees Celsius for an hour before extracting the 7‚7 dichloronorcarane through 2 methyl chloride extraction processes (1ml methylene

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