Explosives A chemical explosive is a compound or a mixture of compounds susceptible of a rapid chemical reaction causing a quick physical outburst of gases or heat radiation. The first explosives were created by the Chinese in the 11th century. These were mixtures of nitrate salts‚ sulfur and charcoal‚ now known as black powder. Gunpowder which is a low explosive‚ exhibits deflagration‚ or rapid burning‚ rather than detonation‚ the reaction exhibited by high explosives. While‚ perhaps counterintuitively
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will reside favourably on the oxygen‚ which means that the electron density associated with the hydrogen is reduced which results in a high chemical shift. A chemical shift of this is only typical for alcohols or aldehydes attached directly to an aromatic ring‚ or nitrogen containing molecules of which is not applicable for the unknown molecule are there is no nitrogen in the molecular formula. From this peak the only possible functional group is an aldehyde as a ketone does not have a hydrogen to
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SYNTHESIS OF 1-PHENYLAZO-2-NAPHTHOL ABSTRACT Amines are compounds composed of nitrogen atoms bearing alkyl or aromatic compounds. Amines undergo interesting reactions‚ one of which is with the reaction with nitrous acid producing an azo dye. In this study‚ the experiment focused on synthesizing an observing the physical properties of Sudan-1. Sudan-1 is of the most common dyes found in waxes‚ oils and in some food ingredients specifically curry and chilli powder. Furthermore‚ this study aimed to
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meanin with a similar structured aromatic amine. Finally‚ the chemicals set the dye to make the color change permanent until the dyed hair is shed in the normal cycling of hair growth. Common chemicals in these products include hydrogen peroxide which is known to be a bleaching agent and ammonia which makes the fibers in the hair swell for better acceptance of the dye. These two chemicals are crucial to permanent hair dye because of their functions
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in 1937. Thus the term aromatherapy was not coined until the 20th Century. The roots of Aromatherapy can be traced back over 6000 years before the birth of Christ when the use of aromatics was recorded for the first time in human history. The history of aromatherapy is linked strongly to the development of aromatic medicine. The ancient Greeks‚ Romans and Egyptians all used aromatherapy oils. In the Dordogne of France there are cave paintings found to be 18‚000 years old that depict the use of
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Name Lab Section GTA Station 1. Grignard Reaction Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table. Also‚ attach the benzophenone and product spectra. Indicate appropriate stretches including differences in both spectra. Results | | Amounts and units | |Initial
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Technology; 2Student (s)‚ Subject/Section‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology ABSTRACT Hydrocarbons are compounds that only contain carbon and oxygen atoms. Alkanes‚ alkenes‚ alkynes and aromatic rings are the four classifications of hydrocarbons. Each of these classifications have different physical and chemical properties that were tested as this experiment was performed. Flammability test and solubility test were done to understand and
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meta-directing. Reactions: Electrophilic aromatic substitution rxns‚ Nucleophilic aromatic substitution rxns (via benzyne or substitution-elmination)‚ Diels-Alder (endo/exo‚ inter/intramolecular)‚ Diene 1-2 and 1-4 electrophilic addition‚ Eliminating bromine from arenes via Grignard‚ Carboxylation of arenes via Grignard 4 Properties of: Amines (pkAs and resonance structures for aromatic and aliphatic molecules)‚ amides (sp2 hybridized by amide bonds)‚ anilines (aromatic amines) Structure of: Sugars (linear
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CH3CH(OH)CH2CH3 C CH3CO2CH3 D CH3CH2COCH2CH3 E CH3CH2CONH2 F H2NCH2CH2CH3 G C6H5CHO A list of seven organic compounds is given above. (a) Which compound is (i) an ester; (ii) an aldehyde; (iii) an alcohol; (iv) an amide (v) an aromatic compound (vi) an acid? (b) Which two compounds are structural isomers? (c) Which compound has chiral center? Mark its chiral center on the structure with an asterisk. 8. Give the IUPAC names for the following compounds: (b) ClCH2CH2CH2CH(OH)CH3
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polyhalogen compounds. Haloalkanes and Haloarenes Haloarenes Halogenated compounds persist in the environment due to their resistance to breakdown by soil bacteria. 10 Unit The replacement of hydrogen atom(s) in a hydrocarbon‚ aliphatic or aromatic‚ by halogen atom(s) results in the formation of alkyl halide (haloalkane) and aryl halide (haloarene)‚ respectively. Haloalkanes contain halogen atom(s) attached to the sp3 hybridised carbon atom of an alkyl group whereas haloarenes contain halogen
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