• Furfural is an organic compound with the formula C4H3OCHO. It is a colorless liquid, although commercial samples are often brown. It has an aldehyde group...
    22 KB (2,288 words) - 11:51, 21 May 2024
  • Thumbnail for Hydroxymethylfurfural
    Hydroxymethylfurfural (HMF), also known as 5-(hydroxymethyl)furfural, is an organic compound formed by the dehydration of reducing sugars. It is a white...
    24 KB (2,526 words) - 16:21, 20 July 2024
  • The rapid furfural test is a chemical test used to distinguish between glucose and fructose. The rapid furfural test is similar to Molisch's test but...
    1 KB (117 words) - 15:38, 13 April 2024
  • Thumbnail for 2-Furoic acid
    known synthesis of a furan compound, the second being furfural in 1821. Despite this, it was furfural which came to set naming conventions for later furans...
    12 KB (1,165 words) - 07:07, 8 September 2023
  • Thumbnail for 2-Methyltetrahydrofuran
    usually synthesized by catalytic hydrogenation of furfural. OC4H3CHO + 4 H2 → OC4H7CH3 + H2O Furfural is produced by the acid-catalyzed digestion of pentosan...
    10 KB (878 words) - 15:46, 5 August 2024
  • Thumbnail for Furfuryl alcohol
    solvents. Furfuryl alcohol is manufactured industrially by hydrogenation of furfural, which is itself typically produced from waste bio-mass such as corncobs...
    10 KB (855 words) - 05:46, 13 October 2023
  • Thumbnail for Xylose
    defensive glands. The acid-catalysed degradation of hemicellulose gives furfural, a precursor to synthetic polymers and to tetrahydrofuran. Xylose is metabolised...
    11 KB (1,022 words) - 23:02, 2 February 2024
  • Thumbnail for Tetrahydrofurfuryl alcohol
    intermediate, e.g. to 3,4-dihydropyran. It is prepared by hydrogenation of furfural. It is a precursor to 1,5-pentanediol. THFA is often used in epoxy resin...
    2 KB (165 words) - 21:23, 25 January 2024
  • chemicals. The name "furan" comes from the Latin furfur, which means bran (furfural is produced from bran). The first furan derivative to be described was...
    18 KB (1,468 words) - 16:08, 10 June 2024
  • alcohols), acetone, acetaldehyde, esters, tannins, and aldehydes (e.g. furfural). Congeners are responsible for most of the taste and aroma of distilled...
    4 KB (417 words) - 17:39, 27 July 2024
  • Thumbnail for Tetrahydrofuran
    certain sugars to be converted to THF via acid-catalyzed digestion to furfural and decarbonylation to furan, although this method is not widely practiced...
    18 KB (1,648 words) - 21:02, 30 July 2024
  • Thumbnail for Molisch's test
    monosaccharides by strong mineral acids. Pentoses are then dehydrated to furfural, while hexoses are dehydrated to 5-hydroxymethylfurfural. Either of these...
    3 KB (326 words) - 15:34, 13 April 2024
  • Thumbnail for 2-Methylfuran
    manufactured by catalytic hydrogenolysis of furfural alcohol or via a hydrogenation-hydrogenolysis sequence from furfural in the vapor phase. Swiftfuel Baird...
    4 KB (212 words) - 09:33, 9 June 2023
  • Thumbnail for Seliwanoff's test
    polysaccharide and oligosaccharide ketoses yields simpler sugars followed by furfural. The dehydrated ketose then reacts with two equivalents of resorcinol in...
    3 KB (281 words) - 15:30, 13 April 2024
  • five-carbon sugars such as xylose. Pentosan-rich biomass is the precursor to furfural. The pentosan content has been determined for many natural materials: 29-25%:...
    2 KB (286 words) - 19:06, 25 April 2024
  • Thumbnail for Oil refinery
    reuse or for disposal. Solvent refining uses solvent such as cresol or furfural to remove unwanted, mainly aromatics from lubricating oil stock or diesel...
    103 KB (10,450 words) - 11:40, 1 August 2024
  • Thumbnail for Scotch whisky
    compounds include vanillic acid, syringic acid, vanillin, syringaldehyde, furfural, phenyl ethanol and acetic acid. One analysis established 13 distinct flavour...
    66 KB (7,146 words) - 14:23, 31 July 2024
  • Thumbnail for Aloke Lohia
    Chemicals (now known as Aurus Specialty Company Limited) to turn corncobs into furfural alcohol, supported financially by the German Investment Corporation. Lohia...
    3 KB (232 words) - 13:17, 1 July 2024
  • Thumbnail for Fumaric acid
    prepared from succinic acid. A traditional synthesis involves oxidation of furfural (from the processing of maize) using chlorate in the presence of a vanadium-based...
    12 KB (963 words) - 13:59, 27 July 2024
  • the presence of certain carbohydrates, in which they are converted to furfural with hydrochloric acid, which reacts with aniline acetate to produce a...
    2 KB (247 words) - 16:06, 15 April 2024
  • hafinum phosphide (HfP/SiO2) was used as a solid acid catalyst to drive furfural production from xylan. "CompTox Chemicals Dashboard". comptox.epa.gov....
    4 KB (274 words) - 03:17, 11 May 2024
  • The most important tests for pentoses rely on converting the pentose to furfural, which then reacts with a chromophore. In Tollens’ test for pentoses (not...
    8 KB (794 words) - 18:13, 24 October 2023
  • Thumbnail for Plastic
    In 1923, Durite Plastics, Inc., was the first manufacturer of phenol-furfural resins. In 1933, polyethylene was discovered by Imperial Chemical Industries...
    92 KB (11,874 words) - 18:50, 4 August 2024
  • six-membered ring system are known as pyranoses. Benzene Pyranose Furan Furfural Pyridine Pyrone Thiopyran Masamune, S.; Castellucci, N. T. (1962). "γ-Pyran"...
    3 KB (206 words) - 21:57, 18 March 2024
  • Thumbnail for Heterocyclic compound
    1818: Brugnatelli makes alloxan from uric acid 1832: Dobereiner produces furfural (a furan) by treating starch with sulfuric acid 1834: Runge obtains pyrrole...
    18 KB (946 words) - 15:52, 25 June 2024
  • Thumbnail for Polyethylene terephthalate
    also technically possible to make PTA from readily available bio-based furfural. There are two basic molding methods for PET bottles, one-step and two-step...
    60 KB (6,332 words) - 04:23, 9 July 2024
  • Thumbnail for Blood sugar level
    the reagent used is toxic. Anthrone (phenols) method Forms hydroxymethyl furfural in hot acetic acid II. Enzymatic methods A. Glucose oxidase G l u c o s...
    39 KB (4,033 words) - 08:44, 20 June 2024
  • nitrogen (volatile bases containing nitrogen): 0.1; dry extract: 1.5; furfural: not detectable. In Germany, rectified spirit is generically called Primasprit...
    17 KB (1,708 words) - 23:28, 28 July 2024
  • Thumbnail for Relative permittivity
    Ammonia 26, 22, 20, 17 (−80, −40, 0, +20 °C) Methanol 30 Ethylene glycol 37 Furfural 42.0 Glycerol 41.2, 47, 42.5 (0, 20, 25 °C) Water 87.9, 80.2, 55.5 (0,...
    16 KB (2,033 words) - 18:15, 8 August 2024
  • Thumbnail for Hemicellulose
    smaller oligomers and xylose. Xylose when dehydrated becomes furfural. When xylose and furfural[check spelling] are the goal, acid catalysts, such as formic...
    22 KB (2,736 words) - 18:05, 10 January 2024