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searching for Dry distillation 40 found (164 total)

Vitriol (509 words) [view diff] exact match in snippet view article find links to article

concentrated sulfuric acid, which was historically obtained through the dry distillation (pyrolysis) of vitriols. The name, abbreviated to vitriol, continued

Ammonia production (2,309 words) [view diff] exact match in snippet view article find links to article

Before the start of World War I, most ammonia was obtained by the dry distillation of nitrogenous vegetable and animal products; by the reduction of nitrous

Citraconic acid (192 words) [view diff] exact match in snippet view article find links to article

citraconic acid. The required itaconic acid anhydride is obtained by dry distillation of citric acid. Budavari, Susan, ed. (1996), The Merck Index: An Encyclopedia

Adhesive (5,108 words) [view diff] exact match in snippet view article find links to article

approximately 200,000 years ago, when Neanderthals produced tar from the dry distillation of birch bark for use in binding stone tools to wooden handles. The

Quercitannic acid (479 words) [view diff] exact match in snippet view article find links to article

convertible into gallic acid, and not yielding pyrogallic acid by dry distillation. It is precipitated by sulfuric acid in red flocks. (Stenhouse, Ann

Thianthrene (349 words) [view diff] exact match in snippet view article find links to article

aluminium chloride. Thianthrene was first synthesized by John Stenhouse by dry distillation of sodium benzenesulfonate. Thianthrene is oxidized by sulfuric acid

Phorone (339 words) [view diff] exact match in snippet view article find links to article

"phorone". On both occasions it was produced by ketonization through the dry distillation of the calcium salt of camphoric acid. CaC10H14O4 → C9H14O + CaCO3

Creolin (1,818 words) [view diff] exact match in snippet view article find links to article

whose composition varies according to origin. It is extracted from the dry distillation of wood. The residue remaining in the autoclave vessel is a dark, syrupy

Picoline (1,339 words) [view diff] exact match in snippet view article find links to article

chemist Adolf von Baeyer had synthesized picoline in two ways: by the dry distillation of acroleïnammoniak (CH2=CH-CH=N-CHOH-CH=CH2) and by heating tribromallyl

Pinacol coupling reaction (891 words) [view diff] exact match in snippet view article find links to article

trockenen Destillation essigsaurer Salze" [On some products of the dry distillation of acetate salts]. Justus Liebigs Annalen der Chemie (in German). 110:

Heterocyclic compound (946 words) [view diff] exact match in snippet view article find links to article

starch with sulfuric acid 1834: Runge obtains pyrrole ("fiery oil") by dry distillation of bones 1906: Friedlander synthesizes indigo dye, allowing synthetic

Allyl isothiocyanate (842 words) [view diff] exact match in snippet view article find links to article

CH2=CHCH2SCN → CH2=CHCH2NCS Allyl isothiocyanate can also be liberated by dry distillation of the seeds. The product obtained in this fashion is known as volatile

Heterocyclic compound (946 words) [view diff] exact match in snippet view article find links to article

starch with sulfuric acid 1834: Runge obtains pyrrole ("fiery oil") by dry distillation of bones 1906: Friedlander synthesizes indigo dye, allowing synthetic

Birch bark (1,271 words) [view diff] exact match in snippet view article find links to article

Langejans GH (August 2017). "Experimental methods for the Palaeolithic dry distillation of birch bark: implications for the origin and development of Neandertal

Mucic acid (326 words) [view diff] exact match in snippet view article find links to article

transformed into α-thiophene carboxylic acid. The ammonium salt yields on dry distillation carbon dioxide, ammonia, pyrrol and other substances. The acid when

Ketone (2,895 words) [view diff] exact match in snippet view article find links to article

of related compounds)). For example, acetone could be formed by the dry distillation of metal acetates, so acetone was the syndesmide of two acetate ions

Ketonic decarboxylation (523 words) [view diff] exact match in snippet view article find links to article

(for example, a small, volatile one) is used in large excess. The dry distillation of calcium acetate to give acetone was reported by Charles Friedel

4,4'-Bipyridine (455 words) [view diff] exact match in snippet view article find links to article

Destillation thierischer Materien. Fünfter Theil" [On the products of the dry distillation of animal materials. Fifth part.]. Annalen der Chemie und Pharmacie

Fragrance extraction (1,598 words) [view diff] exact match in snippet view article find links to article

the distilled vapor. Distilled products, whether through steam or dry distillation are known either as essential oils or ottos. Today, most common essential

Mellitic acid (564 words) [view diff] exact match in snippet view article find links to article

acid and hydriodic acid do not react with it. It is decomposed, on dry distillation, into carbon dioxide and pyromellitic acid, C10H6O8; when distilled

Astatine (9,248 words) [view diff] exact match in snippet view article find links to article

methods are available, "but they generally follow one of two approaches—dry distillation or [wet] acid treatment of the target followed by solvent extraction

Pyridine (7,667 words) [view diff] exact match in snippet view article find links to article

"Producte der trocknen Destillation thierischer Materien" [Products of the dry distillation of animal matter]. Annalen der Chemie und Pharmacie (in German). 70:

Coking factory (2,301 words) [view diff] exact match in snippet view article find links to article

where coke and manufactured gas are synthesized from coal using a dry distillation process. The volatile components of the pyrolyzed coal, released by

Ammonium bituminosulfonate (1,529 words) [view diff] exact match in snippet view article find links to article

Ichthammol is obtained through three steps from bituminous schists: dry distillation, sulfonation of the resulting oil (or purified fractions thereof),

Citric acid (3,655 words) [view diff] exact match in snippet view article find links to article

acid anhydride. The required itaconic acid anhydride is obtained by dry distillation of citric acid. Aconitic acid can be synthesized by dehydration of

Neanderthal behavior (5,829 words) [view diff] exact match in snippet view article find links to article

archaeological sites. Neanderthals produced birch tar through the dry distillation of birch bark. It was long thought that birch tar made by Neanderthals

2-Furoic acid (1,165 words) [view diff] exact match in snippet view article find links to article

described by Carl Wilhelm Scheele in 1780, who obtained it by the dry distillation of mucic acid. For this reason it was initially known as pyromucic

Tannic acid (1,820 words) [view diff] exact match in snippet view article find links to article

convertible into gallic acid, and not yielding pyrogallic acid by dry distillation. It is precipitated by sulfuric acid in red flocks. (Stenhouse, Ann

Kerosene (6,417 words) [view diff] exact match in snippet view article find links to article

illuminating fuel. When the seep became exhausted, he experimented with the dry distillation of coal, especially the resinous "boghead coal" (torbanite). He extracted

(E)-Stilbene (1,849 words) [view diff] no match in snippet view article

submitting this sulfide [i.e., phenyl thioaldehyde, C6H5(CS)H] to [dry] distillation, it gives several products, and among others, a very remarkable compound

Amber (6,892 words) [view diff] exact match in snippet view article find links to article

and they also include much succinic acid. Baltic amber yields on dry distillation succinic acid, the proportion varying from about 3% to 8%, and being

Perechyn Timber-and-Chemical combine (927 words) [view diff] exact match in snippet view article find links to article

"Bantlin" founded a Timber-and-Chemical processing plant of beech dry distillation in Perechyn. Since 1894 it has been producing resin, acetone, methanol

Rosé (6,604 words) [view diff] exact match in snippet view article find links to article

such as activated carbon. This purer form of charcoal obtained by the dry distillation of carbon compounds (such as wood or peat) has a high ratio of surface

Iodine-131 (4,377 words) [view diff] exact match in snippet view article find links to article

elemental tellurium is irradiated and then 131I separated from it by dry distillation of the iodine, which has a far higher vapor pressure. The element is

Hydrothermal liquefaction (2,767 words) [view diff] exact match in snippet view article find links to article

materials are then subjected in a second stage to what is called "dry distillation", which produces "oils and ketones". Temperatures and pressures for

Bitumen (12,164 words) [view diff] exact match in snippet view article find links to article

confused with tar or coal tars. Tar is the thick liquid product of the dry distillation and pyrolysis of organic hydrocarbons primarily sourced from vegetation

Abergele rail disaster (4,241 words) [view diff] exact match in snippet view article find links to article

quantity was on the goods train) by refining liquids produced by the dry distillation of cannel coal from the Flintshire coalfield, as opposed to latterday

Yuri Gabel (2,492 words) [view diff] exact match in snippet view article find links to article

of the institute's director Ivan Krasusky [uk], he researched the dry distillation of tobacco alongside G. I. Kiprianov. Independently, but concurrently

Glossary of chemistry terms (18,187 words) [view diff] exact match in snippet view article find links to article

resonance retort A laboratory apparatus used for the distillation or dry distillation of chemical substances, traditionally consisting of a spherical vessel

Urban planning of Barcelona (22,171 words) [view diff] exact match in snippet view article find links to article

Street and the Plaza de San Jaime, specifically with gas produced by dry distillation of black coal (town gas). That year the Sociedad Catalana para el Alumbrado