Fajans–Paneth–Hahn Law

The Fajans–Paneth–Hahn Law (also Fajans precipitation rule, Fajans-Peneth precipitation and adsorption rule, Hahn law of precipitation and adsorption, Fajans Law), in chemistry, is a rule governing how a small amount of one substance (tracer) is carried down to a precipitate of another substance present in much larger amount (carrier) by coprecipitation or adsorption.

The rule states that:[1][2]

  • the lower the solubility of the tracer cation with the anion of the carrier, the greater the amount of the tracer carried down by the carrier through co-precipitates or adsorption;
  • when the tracer substance forms a mixed crystal, then the separation by co-precipitation only weakly depends on the conditions;
  • the tracer will adsorb on the surface of the carrier precipitate if the precipitate acquired a surface charge opposite to that of the carrier ions in the solution; and then the separation strongly depends on the condition of precipitation.

The amount carried down is strongly affected by presence of complexing species regardless if it occurs by formation of mixed crystals or adsorption.

The law is named after chemists Kazimierz Fajans, Friedrich Paneth and Otto Hahn.

The Fajans-Paneth-Hahn law is essential for understanding the behaviour of minute amounts of substances (e.g., carrier-free radionuclides) in solutions. Note that the tracer is precipitated from the solution even when present at concentration far below its solubility limit. The law is also applied for separation of tracer substances by co-precipitation.

See also

References

  1. ^ Otto Hahn, "Applied Radiochemistry", Cornell University Press, Ithaca, New York, USA, 1936.
  2. ^ W.M. Gibson, "The radiochemistry of lead", National Academy of Sciences - National Research Council, 1961 (pdf).

Read other articles:

Sedjil (air-to-air missile)

Not to be confused with other similar name an Iranian missile, Sejjil. This article may be a rough translation from Persian. It may have been generated, in whole or in part, by a computer or by a translator without dual proficiency. Please help to enhance the translation. The original article is under فارسی in the languages list. See this article's entry on Pages needing translation into English for discussion. (November 2021) Air-to-air missile Sedjil TypeAir-to-air missile[1]Se...

 

Kucing dua warna oriental

Dua warna oriental Asal  Amerika Serikat Standar ras GCCF standar Kucing domestik (Felis catus) Kucing dua warna oriental adalah ras kucing domestik hasil persilangan. Ras kucing ini memiliki rasa sayang tinggi, lucu, dan cerdas.[1] Sejarah Kucing dua warna oriental pertama kali diciptakan oleh LindaJean Grillo asal Amerika Serikat, meskipun sudah ada beberapa peternakan kucing yang mencoba menciptakan ras ini pada sekitar tahun 1970-an dan 1980-an di Inggris. LindaJean melakuka...

 

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、...

Metal fabrication

Creation of metal structures For shaping metal, see metalworking. For other uses, see fabricator (disambiguation). This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Metal fabrication – news · newspapers · books · scholar · JSTOR (May 2014) (Learn how and when to remove this message) A set of six-axis welding r...

 

Edéia

Municipality in Central-West, BrazilEdéiaMunicipality FlagLocation in Goiás stateEdéiaLocation in BrazilCoordinates: 17°20′15″S 49°55′43″W / 17.33750°S 49.92861°W / -17.33750; -49.92861CountryBrazilRegionCentral-WestStateGoiásMicroregionVale do Rio dos BoisArea • Total1,466.3 km2 (566.1 sq mi)Elevation601 m (1,972 ft)Population (2020 [1]) • Total12,467 • Density8.5/km2 (22/sq ...

 

List of political parties in Tamil Nadu

This article is part of a series on thePolitics of Tamil Nadu Constitution and Law Constitution of India Fundamental Rights, Directive Principles and Fundamental Duties of India Human rights Judicial review Taxation Uniform Civil Code Basic structure doctrine Amendment Law of India Indian criminal law Bharatiya Nyaya Sanhita Bharatiya Nagarik Suraksha Sanhita Bharatiya Sakshya Adhiniyam, 2023 Executive Governor of Tamil Nadu R. N. Ravi Chief Minister of Tamil Nadu M. K. Stalin (DMK) Deputy C...

الكنيسة الكاثوليكية وعصر الاستكشاف

دير القديس أوغسطينوس؛ والذي كان مركزًا للبعثات التبشيرية في المكسيك عام 1550. بذلت الكنيسة الكاثوليكية أو الكَثُلِيَّة خلال عصر الاستكشاف جهدًا كبيرًا لنشر المسيحية في العالم الجديد وتحويل الهنود الحمر وغيرهم من السكان الأصليين للمسيحية. وكانت الجهود الإنجيلية جزءًا كبير...

 

Villez-sous-Bailleul

Villez-sous-BailleulcomuneVillez-sous-Bailleul – Veduta LocalizzazioneStato Francia Regione Normandia Dipartimento Eure ArrondissementÉvreux CantonePacy-sur-Eure TerritorioCoordinate49°07′N 1°22′E49°07′N, 1°22′E (Villez-sous-Bailleul) Superficie4,35 km² Abitanti312[1] (2009) Densità71,72 ab./km² Altre informazioniCod. postale27950 Fuso orarioUTC+1 Codice INSEE27694 CartografiaVillez-sous-Bailleul Modifica dati su Wikidata · Manuale Villez-so...

 

2019 Argentine general election

2019 Argentine general election 27 October 2019[1] Opinion polls Presidential election← 20152023 →Registered34,231,895Turnout80.41%   Nominee Alberto Fernández Mauricio Macri Roberto Lavagna Party PJ PRO Independent Alliance FdT JxC CF Running mate Cristina Fernández de Kirchner Miguel Ángel Pichetto Juan Manuel Urtubey Popular vote 12,946,037 10,811,586 1,649,322 Percentage 48.24% 40.28% 6.15% President before election Mauricio Macri JxC...

Tempe, New South Wales

Suburb of Sydney, New South Wales, AustraliaTempeSydney, New South WalesCooks River at TempePopulation3,550 (SAL 2021)[1]Postcode(s)2044Elevation5 m (16 ft)Location9 km (6 mi) S of Sydney CBDLGA(s)Inner West CouncilState electorate(s)HeffronFederal division(s)Barton Suburbs around Tempe: Marrickville Sydenham St Peters Marrickville Tempe Mascot Earlwood Wolli Creek Arncliffe Tempe within the Inner West Council area Tempe House Lymerston, built in 1843 Tempe (...

 

State Committee of the Soviet Union

Inter-agency body of the central government of the USSR Politics of the Soviet Union   Leadership Leaders President list Vice President Collective leadership State Council Presidential Council Communist Party Congress Central Committee History General Secretary Politburo Secretariat Orgburo Legislature Congress of Soviets Central Executive Committee Supreme Soviet Soviet of the Union Soviet of Nationalities Presidium Congress of People's Deputies Speaker 1989 Legislative election Governa...

 

سو جونز

هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (نوفمبر 2018) سو جونز معلومات شخصية الميلاد القرن 20  ويلز  مواطنة أستراليا ويلز  الحياة العملية المهنة ممثلة،  وممثلة أفلام  اللغات الإنجليزية  المواقع IMDB...

Élections législatives de 1951 dans la Haute-Saône

1946 1956 Élections législatives de 1951 dans la Haute-Saône le 17 juin 1951 Type d’élection Élection législative Postes à élire 3 députés modifier - modifier le code - voir Wikidata  Les élections législatives françaises de 1951 se tiennent le 17 juin. Ce sont les deuxièmes élections législatives de la Quatrième République. Mode de Scrutin Représentation proportionnelle plurinominale suivant la méthode du plus fort reste dans 103 circonscriptions, conforméme...

 

Roger Mortimer, 4th Earl of March

14th-century English nobleman Roger MortimerEarl of March Earl of UlsterArms of Mortimer: Barry of six or and azure, on a chief of the first two pallets between two gyrons of the second over all an inescutcheon argentBorn(1374-04-11)11 April 1374Usk, MonmouthshireDied20 July 1398(1398-07-20) (aged 24)County Carlow, IrelandNoble familyMortimerSpouse(s)Alianore Holland, Countess of MarchIssueAnne MortimerEdmund Mortimer, 5th Earl of MarchRoger MortimerEleanor MortimerFatherEdmund Mortimer,...

 

Remonstrants

Dutch Reformed Christian movement This article is about a Dutch Reformed movement. For the Scottish political faction, see Western Remonstrance. For opposition to women's suffrage, see Anti-suffragism. RemonstrantsClassificationProtestantTheologyArminianismOriginearly 17th century NetherlandsSeparated fromDutch Reformed ChurchOfficial websitewww.remonstranten.nl/engels/ The Remonstrants (or the Remonstrant Brotherhood) is a Protestant movement that split from the Dutch Reformed Church in the ...

IWA–AIT

International federation of anarcho-syndicalist labor unions Not to be confused with International Workingmen's Association or IWA (disambiguation). IWA/AITInternational Workers' AssociationAsociación Internacional de los TrabajadoresFoundedDecember 1922 (1922-12)HeadquartersC/Joaquim Costa 34 baixos Barcelona, SpainLocationInternationalAffiliationsAnarcho-syndicalismWebsitewww.iwa-ait.org Part of a series onAnarcho-syndicalism Theory Anti-authoritarianism Anti-capitalism Anti-mili...

 

Bror Fock

Swedish long-distance runner Bror FockPersonal informationBorn29 March 1888Vänersborg, SwedenDied4 September 1964 (aged 76)Vänersborg, SwedenHeight1.70 m (5 ft 7 in)Weight62 kg (137 lb)SportSportAthleticsEvent3000–10000 mClubVänersborgs IFAchievements and titlesPersonal best(s)5000 m – 15:29.2 (1912)10000 m – 32:12.1 (1912)[1][2] Medal record Representing  Sweden Olympic Games 1912 Stockholm 3000 m team Bror Karl Fock (29 March 1888 – 4...

 

Provincia di Lodi

Disambiguazione – Se stai cercando la provincia della Lombardia austriaca (1786-1797), vedi Provincia di Lodi (Lombardia austriaca). Provincia di Lodiprovincia (dettagli) Provincia di Lodi – VedutaPalazzo San Cristoforo, sede della provincia LocalizzazioneStato Italia Regione Lombardia AmministrazioneCapoluogoLodi PresidenteFabrizio Santantonio (indipendente di centro-sinistra) dal 27-3-2022[1] Data di istituzione6 marzo 1992 TerritorioCoordinatedel capoluogo...

Úrsula Corberó

Spanish actress (born 1989) In this Spanish name, the first or paternal surname is Corberó and the second or maternal family name is Delgado. Úrsula CorberóCorberó in 2024BornÚrsula Corberó Delgado (1989-08-11) 11 August 1989 (age 35)Sant Pere de Vilamajor, Catalonia, SpainOccupationActressYears active2002–presentPartnerChino Darín (2016–present) Úrsula Corberó Delgado (born 11 August 1989) is a Spanish actress. She became known in Spain for playing Ruth Gómez ...

 

Mars 1804

Mars 1804 Nombre de jours 31 Premier jour Jeudi 1er mars 18044e jour de la semaine 9 Dernier jour Samedi 31 mars 18046e jour de la semaine 13 Calendrier mars 1804 Sem Lu Ma Me Je Ve Sa Di 9 1er 2 3 4 10 5 6 7 8 9 10 11 11 12 13 14 15 16 17 18 12 19 20 21 22 23 24 25  13 26 27 28 29 30 31 1804 • Années 1800 • XIXe siècle Mois précédent et suivant Février 1804 Avril 1804 Mars précédent et suivant Mars 1803 Mars 1805 Chronologies par zone géographique Chrono...