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Formation of Carbon from Carbohydrate Sulfuric acid has a very high affinity for water. It is shown to dehydrate a carbohydrate (sucrose) forming carbon. Sulfuric acid is reduced to sulfur dioxide, which bleaches a rose petal.
In a second experiment, the sulfur dioxide reduces purple permanganate to nearly colorless manganese(II).
Acids / Bases |
Carbohydrates |
Oxidation / Reduction |
Reactions
Carbohydrates Dehydration of sucrose, Fehling's test, Benedict's test, osazone formation, destructive distillation of wood, oxidation of sucrose with potassium chlorate, and guncotton are demonstrated.
Synthesis of Anomeric Methyl Fructofuranosides and Their Separation on an Ion-exchange ResinErkki Nurminen, Päivi Poijärvi, Katja Koskua, and Jari Hovinen Treatment of d-fructose with methanol in the presence of acid as a catalyst gives a mixture of methyl--d-fructopyranoside, methyl-a-D-fructofuranoside, and methyl--d- fructofuranoside, which are separated on an ion exchange column and characterized polarimetrically. Nurminen, Erkki; Poijärvi, Päivi; Koskua, Katja; Hovinen, Jari. J. Chem. Educ.2007, 84, 1480.
Acetal Protecting Groups in the Organic Laboratory: Synthesis of Methyl 4,6-O-Benzylidene-α-D-GlucopyranosideAlexei V. Demchenko, Papapida Pornsuriyasak, and Cristina De Meo The synthesis of methyl 4,6-O-benzylidene-a-D-glucopyranoside provides an opportunity to synthesize a cyclic acetal; stereoselectively introduce a chirality center; and learn extraction, evaporation, precipitation, optical rotation, melting point measurement, thin-layer chromatography, IR-spectroscopy, mass spectrometry, and various NMR techniques. Demchenko, Alexei V.; Pornsuriyasak, Papapida; De Meo, Cristina. J. Chem. Educ.2006, 83, 782.
Characteristics of MaterialsAmerican Chemical Society What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry |
Gases |
Carbohydrates |
Proteins / Peptides |
Crystals / Crystallography |
Water / Water Chemistry |
Plant Chemistry |
Dyes / Pigments |
Lipids |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography |
Magnetic Properties |
Metals |
Polymerization |
Solutions / Solvents |
Descriptive Chemistry |
Food Science
Simple SugarsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Carbohydrates
DisaccharidesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
or 
anomer.
