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Chemical reagent used to distinguish between aldehydes and ketones
named after its discoverer, the German chemist Bernhard Tollens. A positive test with Tollens' reagent is indicated by the precipitation of elemental silver
Tollens'_reagent
Chemical test for the reducibility of a sugar
for reducing sugars and non-reducing sugars, supplementary to the Tollens' reagent test. The test was developed by German chemist Hermann von Fehling
Fehling's_solution
Surname list
German chemist, discoverer of the Tollens' reagent Hendrik Tollens (1780–1856), Dutch poet Henricus Jacobus Tollens (1864–1936), Dutch painter and photographer
Tollens
German chemist (1841–1918)
Bernhard Christian Gottfried Tollens (30 July 1841 – 31 January 1918) was a German chemist. Tollens attended school at the Gelehrtenschule des Johanneums
Bernhard_Tollens
Substance added to a system to cause a chemical reaction
Examples include Fehling's reagent, Millon's reagent, and Tollens' reagent. In commercial or laboratory preparations, reagent-grade designates chemical
Reagent
Chemical reagent
H2O. Dextrose equivalent Other oxidizing reagents Fehling's solution Tollens' reagent Other reducing reagents Jones reductor Walden reductor Robert D.
Benedict's_reagent
This is a list of inorganic and organic reagents commonly used in chemistry. Reagents are "substances or compounds that are added to a system in order
List_of_reagents
Sugars that contain free OH group at the anomeric carbon atom
detected with the addition of Tollens' reagent, which consist of silver ions (Ag+) in aqueous ammonia. When Tollens' reagent is added to an aldehyde, it
Reducing_sugar
Topics referred to by the same term
or plane The "silver mirror", created in chemical tests involving Tollens' reagent Current mirror, an electric circuit designed to copy a current through
Mirror_(disambiguation)
Chemical compound
explosions at UK schools to dispose of potentially hazardous DNPH. Tollens' reagent Fehling's reagent Schiff test Allen, C. F. H. (1933). "2,4-Dinitrophenylhydrazine"
2,4-Dinitrophenylhydrazine
Organic chemistry named reaction
chromogenic product. Tollens' reagent Fehling's reagent 2,4-Dinitrophenylhydrazine Fehling's solution Barfoed's test Benedict's reagent See: Schiff, Hugo
Schiff_test
Organic compound containing the functional group R–CH=O
the silver-mirror test. In this test, an aldehyde is treated with Tollens' reagent, which is prepared by adding a drop of sodium hydroxide solution into
Aldehyde
Surface covering of metal on a conductor
apply a thin layer of silver to objects such as glass, is to place Tollens' reagent in a glass, add glucose/dextrose, and shake the bottle to promote the
Plating
Class of chemical compounds
dissolves in aqueous ammonia. The same complex is the active ingredient in Tollens' reagent. Gold(I) chloride reacts with ammonia to form [Au(NH3)2]+. Since ammonia
Metal_ammine_complex
commercial product (Plexiglas) by Otto Röhm in 1933 1882: Tollens' reagent by Bernhard Tollens 1883: Claus process by Carl Friedrich Claus 1884: Paal–Knorr
List of German inventions and discoveries
List_of_German_inventions_and_discoveries
Plating process
Pt, Sn, Ag, and their alloys. The Tollens' reaction is often used in scientific demonstrations of ED. Tollen's reagent deposits a reflective metallic silver
Electroless_deposition
Organic compounds of the form >C=O
may be distinguished from aldehydes by giving a negative result with Tollens' reagent or with Fehling's solution. Methyl ketones give positive results for
Ketone
High explosive used in bang snaps
may also refer to the nitride or azide, the decomposition product of Tollens' reagent, or an alchemical mixture, which does not contain the fulminate anion
Silver_fulminate
Index of chemical compounds with the same name
fulminate anion) silver azide, AgN3 a mixture, a decomposition product of Tollens' reagent silver nitride, Ag3N - one of the earliest silver based explosives
Fulminating_silver
Chemical compound
products. It is soluble in ammonia solution, producing active compound of Tollens' reagent. A slurry of Ag2O is readily attacked by acids: Ag2O + 2 HX → 2 AgX
Silver_oxide
Chemical compound
solution can dissolve silver oxide residues, such as those formed from Tollens' reagent. It is often found in solutions used to clean gold, silver, and platinum
Ammonia_solution
Chemical compound
for skin absorption. Aniline acetate test Bial's test Molisch's test Tollens' reagent NIOSH Pocket Guide to Chemical Hazards. "#0297". National Institute
Furfural
Application of reflective coatings to mirrors
chemist Tony Petitjean (1856). This reaction is a variation of the Tollens' reagent for aldehydes. A solution of diamminesilver(I) is mixed with a sugar
Silvering
Tischtschenko reaction Tishchenko reaction, Tishchenko–Claisen reaction Tollens' reagent Transfer hydrogenation Trapp mixture Transesterification Traube purine
List_of_organic_reactions
Hypothetical charge of an atom if all its bonds to different atoms were fully ionic
the reduced atoms. For example, in the reaction of acetaldehyde with Tollens' reagent to form acetic acid (shown below), the carbonyl carbon atom changes
Oxidation_state
Chemical compound
([Ag(NH3)2]+) complex ion. Like other diamminesilver(I) solutions, including Tollens' reagent, there is a possibility that explosive Silver nitride may precipitate
Silver_carbonate
Stryker's reagent (Cu6H6(PPh3)6) Swart's reagent (SbF3) Tebbe's reagent (Cp2TiCl(CH2)AlMe2) Tollens' reagent ([Ag(NH3)2]+) Trinder reagent (10% FeCl3(aq))
List of inorganic compounds named after people
List_of_inorganic_compounds_named_after_people
Procedure for identifying or quantifying a chemical compound or group
can be oxidized to methyl ketones The Schiff test detects aldehydes Tollens' reagent tests for aldehydes (known as the silver mirror test) The Zeisel determination
Chemical_test
Class of chemical compounds
Tollens' reagents, the Meillère reagent (based on the Scherer-Gallois reaction), and digestion by Acetobacter suboxydans followed by Tollens' reagent
Cyclitol
Devising names for a class of carbohydrates
reducing the Tollens’ reagent, while the non-reducing end is the monosaccharide residue in acetal form, thus incapable of reducing the Tollens’ reagent. The reducing
Oligosaccharide_nomenclature
Chemical compound
phloroglucinol further stimulates rooting. Phloroglucinol is a reagent of the Tollens' test for pentoses. This test relies on reaction of the furfural
Phloroglucinol
Chemical compound
acids, chlorine bleaches, pool chlorine etc. Benedict's reagent Tollens' reagent Lucas' reagent Drug checking "spiro(3h-2,1-benzoxathiole-3,9'-(9h)xanthene)-3'
Bromopyrogallol_red
Other reductor Jones reductor Other oxidizing reagents (opposite) Tollens' reagent Benedict's reagent Fehling's solution Mendham, J; Denney, R.C; Barnes
Walden_reductor
Chemical reaction
Organic Name Reactions and Reagents. Vol. 686. pp. 3100–3104. doi:10.1002/9780470638859.conrr686. ISBN 9780470638859. Tollens, Bernhard; Rudolph Fittig
Wurtz–Fittig_reaction
Naturally produced monosaccharide
complex is reduced to Cu+ and forms a brick red precipitate (Cu2O). In the Tollens test, after addition of ammoniacal AgNO3 to the sample solution, glucose
Glucose
Overview of and topical guide to organic chemistry
homologation Sommelet reaction Stahl oxidation Swern oxidation Tamao oxidation Tollens oxidation Wacker-Tsuji oxidation Cheletropic reaction Dyotropic reaction
Outline_of_organic_chemistry
German chemist (1835–1910)
Transformations. Vol. 48. Georg Thieme Verlag. ISBN 978-3-13-178481-0. Tollens, Bernhard; Fittig, Rudolph (1864). "Ueber die Synthese der Kohlenwasserstoffe
Wilhelm_Rudolph_Fittig
work in thermochemistry" "for the discovery of the so-called Grignard reagent, which in recent years has greatly advanced the progress of organic chemistry"
List of nominees for the Nobel Prize in Chemistry
List_of_nominees_for_the_Nobel_Prize_in_Chemistry
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