Dictionary, Defintion, Meaning, What is Dichroism, Diffraction Pattern, Dichloro Methane, Dicyanodiamide, Dicyclopentadiene, Dielectric Constant

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Dictionary of Chemistry Dictionary of Chemistry - Part 1 Part 2 Cathodic Protection - Cerium Charles's Law - Chemical Equivalent Chitinase - Chlorinated Rubbers Chlorine Water - Chromatography Chrome Platting - Chromium Oxides Chromyl Compounds - Claisen Condensation Clausius Mosotti Law - Coagulation Coal,Bituminous - Coherant Precipitate Common Ion Effect - Conductivity Congeners - Continuous Spectrum Copper Chlorides - Copper Hydroxides Corundum - Covalent Radius Crum Brown's Rule - Crystal System Cyanide Process or Gold - Cyclohexanol Dalton's Atomic Theory - De Broglie Equation Degree of Freedom - Demulsification Depression of Freezing Point - Destructive Distillation Deuterium (Heavy Hydrogen) - Diamagnetism Diaphragm Valve - Diazotization Dichroism - Diffraction Pattern

Home >> Chemistry Dictionary >> Dichroism Diffraction Pattern

Your Ad Here	Dichloro Methane or Methylene Chloride (CH₂Cl₂): A colourless volatile liquid b.p. 40.1°C. It is used as a solvent , are refrigerant and as a anaesthetic. Dichroism. Refers to the property of some crystals, such as tourmaline, of selectively absorbing light vibrations in one plane while allowing light vibrations at right angles to this plane to pass through. Polaroid is a synthetic dichroic material. Dicyanodiamide. or cyanoguanidine [H₂NC(NH)NHCN]: A white crystalline substance m.p. 208°C., used in the manufacture of melamine and of barbiturates and other drugs. Dicyclopentadiene. A colourless solid, m.p. 32°C and has a characteristic odour.
Dielectric constant. The capacity of the solvent to weaken the forces of attraction between the electrical charge immersed in it. Diels-Alder reaction: A method of preparing a benzene ring from a diene and a compound containing a single double band (e.g., maleic acid). Named after Otto Diels (1876-1954) and Kurt Alder (1902-58). Dienoestrol. (C₁₈H₁₈O₂): A colourless crystalline powder m.p. 233°C, obtained by reducing p-hydroxy propiophenone. It has oestrogenic properties. Diesel fuel. Intermediate and heavy fractions which are obtained in the dilution of petroleum and used as fuel in engines where ignition occur because of compression.
Dietericis equation : A modification of Vander Waal’s equation, in which accounts is taken of the pressure gradient at the boundary gas. It is written. P(V—b) = RTe^- a/RTV Where a and b are constant characteristics of each gas; at relatively low pressures. Diethyl Ether. See Ethoxy Ethane. Diethyl Malonate. Or Malonic Ester [CH₂(COOC₂H₅)₂]: A colourless liquid (b.p. 472 k) with a pleasant odour. It is insoluble in water, miscible with organic solvents. It is used to prepare various organic compounds.	Your Ad Here
Diethyl sulphate. (C₂H₅O)2SO₂. A colourless liquid with a faint ethereal odour : b.p. 208°C (decomp). Manufactured by leading ethene under pressure into 100% sulphuric acid. It is decomposed by boiling water. Reacts with hydroxy-compounds and amines to give ethers esters, amines and amines. Used as an ethylating agent in organic syntheses. Highly toxic by skin contact. Differential titration. Analysis of a sample which contains two or more similarly reacting species which are differentiated, e.g. use of different bases or indicators. Diffraction pattern. A beam of X-ray or electrons passed through a crystalline solid produces a diffraction pattern on a photographic plate.
Your Ad Here	The pattern is due to the