Schweizer's reagent is a metal ammine complex with the formula Cu(NH3)4(H2O)2](OH)2. This deep-blue compound is used in purifying cellulose. This salt...
7 KB (739 words) - 09:56, 19 August 2024
Matthias Eduard Schweizer (8 August 1818 – 23 October 1860) was a Swiss chemist who in 1857 invented Schweizer's reagent, in which cellulose can be dissolved...
6 KB (665 words) - 01:45, 2 August 2022
[Cu(NH3)4(H2O)]2+ (tetraammineaquacopper(II) cation). It is closely related to Schweizer's reagent, which is used for the production of cellulose fibers in the production...
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reaction of cold solutions of Schweizer's reagent—a source of copper(II)—and hydrogen peroxide.. The Schweizer's reagent used must not contain excess ammonia...
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fiber made from cellulose dissolved in a cuprammonium solution, Schweizer's reagent. It is produced by making cellulose a soluble compound by combining...
7 KB (533 words) - 12:36, 15 November 2023
its production, the cellulose is combined with copper and ammonia (Schweizer's reagent). Due to the detrimental environmental effects of this production...
47 KB (5,222 words) - 04:46, 13 August 2024
Schweizer's reagent Peter Schweizer (born 1964), American author Schweizer brothers (Paul, William, and Ernest), brothers and founders of Schweizer Aircraft...
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octanoic acid: Copper(II) hydroxide in ammonia solution, known as Schweizer's reagent, dissolves cellulose. This property led to it being used in the production...
14 KB (1,393 words) - 04:01, 13 August 2024
ammine complex known as Schweizer's reagent ([Cu(NH3)4(H2O)2](OH)2) is sometimes used to solubilise the polymer. Schweizer's reagent is prepared by treating...
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Copper(II) sulfate (section Analytical reagent)
with ammonium hydroxide yields tetraamminecopper(II) sulfate or Schweizer's reagent which was used to dissolve cellulose in the industrial production...
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made of cellulose or plastic? Cellulose/plastic separation by using Schweizer's reagent and analysis based on a sample of tea bags". Process Safety and Environmental...
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(CODRh(PPh3)2+) Schultze reagent (KClO3 / HNO3) Schweinfurter Green (Cu(OAc)2·3Cu(AsO2)2) Schwartz's reagent (Cp2Zr(H)Cl) Schweizer's reagent ([Cu(NH3)4(H2O)2](OH)2)...
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Benedict's reagent and Fehling's solution the presence of the sugar is signaled by a color change from blue Cu(II) to reddish copper(I) oxide. Schweizer's reagent...
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carbon disulfide in the presence of alkali. Other agents include Schweizer's reagent, N-methylmorpholine N-oxide, and lithium chloride in dimethylacetamide...
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forming Schweizer's reagent. CuSO4(aq) + 4 NH3(aq) + 4 H2O → [Cu(NH3)4(H2O)2](OH)2(aq) + H2SO4(aq) Ammonia or ammonium ion when added to Nessler's reagent gives...
20 KB (2,099 words) - 01:59, 25 July 2024
Benedict's reagent and Fehling's solution the presence of the sugar is signaled by a color change from blue Cu(II) to reddish copper(I) oxide. Schweizer's reagent...
121 KB (13,773 words) - 19:46, 16 August 2024
the aqueous solution of copper(II) oxide in ammonia is known as Schweizer's reagent.[clarification needed] Although the problem was first found in brass...
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17-electron species and five-coordinate 19-electron species. Examples: Schweizer's reagent. d10 Often tetrahedral complexes limited to form 4 additional bonds...
14 KB (1,701 words) - 03:27, 4 October 2023
cuprammonium process for spinning fibers from cotton dissolved in Schweizer's reagent. Despeissis died in 1892 and his patent was not renewed. Max Fremery...
33 KB (4,092 words) - 00:35, 18 March 2024
cuprammonium process for spinning fibers from cotton dissolved in Schweizer's reagent. Despeissis died in 1892 and his patent was not renewed. In 1891...
9 KB (1,019 words) - 21:41, 7 October 2023
1002/cber.19480810510. The cuprammonium process for making rayon using Schweizer's reagent had been patented in 1890 by the French chemist Louis Henri Despeissis...
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cuprammonium process for spinning fibers from cotton dissolved in Schweizer's reagent. Despeissis died in 1892 and his patent was not renewed. In 1891...
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Lacing (drugs) (section Reagent testing)
several groups advocating for drug safety through education have made reagent testing products available to confirm what substances there are. LSD is...
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Aryl halide (section Organometallic reagent formation)
be used to convert diazonium salts to chlorobenzenes using copper-based reagents. Owing to high cost of diazonium salts, this method is reserved for specialty...
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separation, including crystallization, chromatography, and the use of various reagents. Without a chiral influence (for example a chiral catalyst, solvent or...
15 KB (1,826 words) - 18:39, 29 July 2024
Members of the tetracycline class of antibiotics are often used as research reagents in in vitro and in vivo biomedical research experiments involving bacteria...
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these complexes first began receiving significant attention when Grignard reagents and organolithium compounds became available. Triorganobismuth(III) compounds...
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Droplet-based microfluidics (section Reagent addition)
channel. Reagent volume is controlled by the flow rate of the perpendicular reagent channel. An early challenge for such systems is that reagent droplet...
211 KB (23,773 words) - 00:12, 10 June 2024
also based on the presence of polyphenols – include the Folin-Ciocalteu reagent, and the Trolox equivalent antioxidant capacity assay. Klemchuk, Peter...
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with varnish and chemically treating the other hemisphere with a silane reagent. This method resulted in a particle with equal hydrophilic and hydrophobic...
56 KB (6,688 words) - 12:25, 17 July 2024