Hermann von Fehling

Hermann von Fehling (9 June 1812 – 1 July 1885) was a German chemist, famous as the developer of Fehling's solution used for estimation of sugar.

Biography

Hermann von Fehling was born in Lübeck. With the intention of taking up pharmacy he entered Heidelberg University about 1835. After graduating he went to Gießen as preparateur to Justus von Liebig, with whom he elucidated the composition of paraldehyde and metaldehyde. In 1839, on Liebig's recommendation, he was appointed to the chair of chemistry in the polytechnic in Stuttgart, a position he held for over 45 years. He died in Stuttgart in 1885.^[1]

His earlier work included an investigation of succinic acid, and the preparation of phenyl cyanide (better known as benzonitrile), the simplest nitrile of the aromatic series. Later his time was mainly occupied with questions of technology and public health rather than with pure chemistry.^[1]

Among the analytical methods he worked up the best known is that for the estimation of sugars. Known as Fehling's solution it is a solution of copper sulfate mixed with alkali and potassium sodium tartrate (Rochelle salt). He was a contributor to the Handwörterbuch of Liebig, Friedrich Wöhler and Johann Christian Poggendorff, and to the Graham-Otto Textbook of Chemistry. For many years was a member of the committee of revision of the Pharmacopoeia Germanica.^[1]

References

^ ^a ^b ^c Chisholm 1911.

Wikimedia Commons has media related to Hermann von Fehling.

Quantitative Bestimmung des Zuckers im Harn
H. Fehling (1849). "Die quantitative Bestimmung von Zucker und Stärkmehl mittelst Kupfervitriol". Annalen der Chemie und Pharmacie. 72 (1): 106–113. doi:10.1002/jlac.18490720112.
A. W. Hofmann (1885). "Sitzung vom 13. Juli 1885". Berichte der deutschen chemischen Gesellschaft. 18 (2): 1811–1820. doi:10.1002/cber.18850180202.
"Annual General Meeting". J. Chem. Soc., Trans. 49: 329–356. 1885. doi:10.1039/CT8864900329.
This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Fehling, Hermann von". Encyclopædia Britannica. Vol. 10 (11th ed.). Cambridge University Press. p. 236.

Read other articles:

Keamanan Lapisan Transportasi

Keamanan Lapisan Transportasi Inggris: Transport Layer Securitycode: en is deprecated (TLS), dan pendahulunya yang sudah usang, Secure Sockets Layer (SSL),[1] adalah protokol kriptografi yang dirancang untuk memberikan keamanan komunikasi melalui jaringan komputer.[2] Beberapa versi protokol TLS dapat ditemukan penerapannya secara luas seperti di peramban web, surel, pesan instan, dan voice over IP (VoIP). Situs web dapat menggunakan TLS untuk mengamankan semua komunikasi anta...

Piala Dunia Antarklub FIFA 2023

Piala Dunia Antarklub FIFA 2023FIFA Club World Cup Saudi Arabia 2023presented by Visit Saudiكأس العالم للأندية لكرة القدمالسعودية 2023Informasi turnamenTuan rumahArab SaudiKotaJeddahJadwalpenyelenggaraan12–22 DesemberJumlahtim peserta7 (dari 6 konfederasi)Tempatpenyelenggaraan2 (di 1 kota)Hasil turnamenJuara Manchester City (gelar ke-1)Tempat kedua FluminenseTempat ketiga Al AhlyTempat keempat Urawa Red DiamondsStatistik turnamenJumlahpertandingan7...

Aurochs

Extinct species of large cattle that inhabited Asia, Europe, and Northern Africa Not to be confused with Bos taurus, European bison, or Oryx. AurochsTemporal range: Early Pleistocene–Recent PreꞒ Ꞓ O S D C P T J K Pg N ↓ Mounted skeleton of an aurochs bull at the National Museum of Denmark Conservation status Extinct (1627) (IUCN 3.1)[1] Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Artiodactyla Family: Bovid...

Rashida Jones

Rashida JonesJones pada tahun 2017LahirRashida Leah Jones25 Februari 1976 (umur 48)Los Angeles, California, Amerika SerikatAlmamaterUniversitas HarvardPekerjaanAktris, penulis, produserTahun aktif1997–sekarangPasanganMark Ronson (2002–2004)Ezra Koenig (2015–sekarang)Anak1Orang tuaQuincy JonesPeggy Lipton Rashida Leah Jones (/rəʃˈiːdə/;[1] lahir 25 Februari 1976)[2][3] adalah aktris, penulis dan produser asal Amerika Serikat. Dia dikenal karena ber...

Medal of Honor

Halaman ini berisi artikel tentang medali penghargaan militer. Untuk seri permainan video, lihat Medal of Honor (seri permainan video). Untuk permainan video, lihat Medal of Honor (permainan video 1999). Untuk permainan video 2010, lihat Medal of Honor (permainan video 2010).Medal of HonorMedals of honor versi Angkatan Darat, Angkatan Laut dan Angkatan Udara. (Dari kiri ke kanan)TipeMedali militer dengan pita leher(decoration)Diberikan kepadaKeberanian yang mencolok dengan risiko kehidupan di...

Anatoly Bifov

Russian politician In this name that follows Eastern Slavic naming customs, the patronymic is Zhamalovich and the family name is Bifov. You can help expand this article with text translated from the corresponding article in Russian. (February 2024) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accu...

George Burns

Pour les articles homonymes, voir George Burns (homonymie) et Burns. Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus. Cet article ne cite pas suffisamment ses sources (mai 2017). Si vous disposez d'ouvrages ou d'articles de référence ou si vous connaissez des sites web de qualité traitant du thème abordé ici, merci de compléter l'article en donnant les références utiles à sa vérifiabilité et en les liant à la section « Notes et références&#...

コルク

この記事は検証可能な参考文献や出典が全く示されていないか、不十分です。出典を追加して記事の信頼性向上にご協力ください。（このテンプレートの使い方）出典検索?: コルク – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパンサーチ · TWL（2017年4月）コルクを打ち抜いて作った瓶の栓コルク（木栓、�...

Slumdog Millionaire

Slumdog MillionairePoster film Slumdog MillionaireSutradaraDanny BoyleProduserChristian ColsonDitulis olehSimon BeaufoyBerdasarkanQ & Aoleh Vikas SwarupPemeranDev PatelFreida PintoMadhur MittalAnil KapoorIrrfan KhanPenata musikA.R. RahmanSinematograferAnthony Dod MantlePenyuntingChris DickensPerusahaanproduksiCelador FilmsFilm4 ProductionsDistributorSearchlight Pictures[1]Warner Bros Pictures[2](Amerika Utara)Pathé[2](internasional)Tanggal rilis 30 Agustus 2...

2016年美國總統選舉

2016年美國總統選舉 ← 2012 2016年11月8日 2020 → 538個選舉人團席位獲勝需270票民意調查投票率55.7%[1][2] ▲ 0.8 % 获提名人唐納·川普希拉莉·克林頓政党共和黨民主党家鄉州紐約州紐約州竞选搭档迈克·彭斯蒂姆·凱恩选举人票 304[3][4][註 1] 227[5] 胜出州/省 30 + 緬-2 20 + DC 民選得票 62,984,828[6] 65,853,514[6]...

2010–11 Purdue Boilermakers men's basketball team

American college basketball season 2010–11 Purdue Boilermakers men's basketballNCAA tournament, Round of 32ConferenceBig Ten ConferenceRankingCoachesNo. 17APNo. 13Record26–8 (14–4 Big Ten)Head coachMatt Painter (6th Season)Assistant coaches Paul Lusk Jack Owens Mike Jackson Home arenaMackey ArenaSeasons← 2009–102011–12 → 2010–11 Big Ten Conference men's basketball standings vte Conf Overall Team W L PCT W L PCT ...

Aaptos tentum

Aaptos tentum Klasifikasi ilmiah Kerajaan: Animalia Upakerajaan: Parazoa Filum: Porifera Kelas: Demospongiae Ordo: Hadromerida Famili: Suberitidae Genus: Aaptos Spesies: Aaptos tentum Aaptos tentum adalah spesies spons yang tergolong dalam kelas Demospongiae. Spesies ini juga merupakan bagian dari genus Aaptos dan famili Suberitidae. Nama ilmiah spesies ini pertama kali diterbitkan pada tahun 1994 oleh Kelly-Borges & Bergquis. Seperti spons pada umumnya, spesies ini memiliki tubuh yang b...

Political movement

Movement to obtain a political goal The mid-19th century Scandinavism political movement led to the modern use of the term Scandinavia. A political movement is a collective attempt by a group of people to change government policy or social values.[1] Political movements are usually in opposition to an element of the status quo,[2] and are often associated with a certain ideology.[3] Some theories of political movements are the political opportunity theory, which states...

List of massacres of Indigenous Australians

Massacres of Australian Aboriginals Telegram sent from Broome, Western Australia, 20 July 1907; recorded by Postmaster-General's office Colonial settlers frequently clashed with Indigenous people (on continental Australia) during and after the wave of mass immigration of Europeans into the continent, which began in the late 18th century and lasted until the early 20th. Throughout this period, settlers attacked and displaced Indigenous Australians, resulting in significant numbers of Indigenou...

Christoph Waltz

Christoph Waltz al Vienna International Film Festival 2017 Oscar al miglior attore non protagonista 2010 Oscar al miglior attore non protagonista 2013 Christoph Waltz (Vienna, 4 ottobre 1956) è un attore e regista austriaco con cittadinanza tedesca. È vincitore di vari riconoscimenti, compresi due premi Oscar, due premi Golden Globe, due premi BAFTA, due Critics' Choice Awards, due Screen Actors Guild Awards ed un Prix d'interprétation masculine al Festival di Cannes. Ha vinto due Oscar gr...

Giuseppe Conte

Pour les articles homonymes, voir Giuseppe Conte (homonymie) et Conte (homonymie). Giuseppe Conte Giuseppe Conte en 2020. Fonctions Député italien En fonction depuis le 13 octobre 2022(1 an, 9 mois et 3 jours) Élection 25 septembre 2022 Circonscription Lombardie 1 Législature XIXe Président du Mouvement 5 étoiles En fonction depuis le 6 août 2021(2 ans, 11 mois et 10 jours) Prédécesseur Vito Crimi (intérim)Luigi Di Maio Ministre des Politiques agricole...

Glassine

Translucent, smooth and glossy type of paper Printed glassine envelope for the photographer Arthur Weston, c. 1900 Glassine envelope Glassine is a smooth and glossy paper that is air-, water-, and grease-resistant. It is usually available in densities between 50–90 g/m2 (0.010–0.018 lb/sq ft). It is translucent unless dyes are added to color it or make it opaque. It is manufactured by supercalendering: after pressing and drying, the paper web is passed through a stack...

Maisie Williams

Disambiguazione – Se stai cercando la cantante britannica, vedi Maizie Williams. Maisie Williams al San Diego Comic-Con International 2019 Margaret Constance Williams, detta Maisie (Bristol, 15 aprile 1997), è un'attrice britannica, nota soprattutto per il ruolo di Arya Stark nella serie HBO Il Trono di Spade[1]. Indice 1 Biografia 2 Filmografia 2.1 Attrice 2.1.1 Cinema 2.1.2 Televisione 2.1.3 Videoclip 2.2 Doppiatrice 3 Riconoscimenti 4 Doppiatrici italiane 5 Note 6 Altri progett...

Paroki di Saint Kitts dan Nevis

Untuk Yurisdiksi Gereja Katolik di Saint Kitts dan Nevis, lihat Daftar paroki di Saint Kitts dan Nevis. Paroki adalah wilayah administratif tingkat satu di Saint Kitts dan Nevis. Paroki di Saint Kitts dan Nevis No. Nama Ibu kota Kode Luas(km²) Populasi(sensus 2011) Saint Kitts 1 Christ Church Nichola Town Nichola Town KN-01 19 2,626 2 Saint Anne Sandy Point Sandy Point Town KN-02 13 1,922 3 Saint George Basseterre Basseterre KN-03 29 12,635 4 Saint John Capisterre Dieppe Bay Town KN-06 25 2,...

Regular polygon

Equiangular and equilateral polygon Regular polygonEdges and vertices n {\displaystyle n} Schläfli symbol { n } {\displaystyle \{n\}} Coxeter–Dynkin diagramSymmetry groupDn, order 2nDual polygonSelf-dualArea (with side length s {\displaystyle s} ) A = 1 4 n s 2 cot ⁡ ( π n ) {\displaystyle A={\tfrac {1}{4}}ns^{2}\cot \left({\frac {\pi }{n}}\right)} Internal angle ( n − 2 ) × π n {\displaystyle (n-2)\times {\frac {\pi }{n}}} Internal angle sum ( n −...