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Charles James (chemist)
Charles James (27 April 1880 – 10 December 1928) was a chemist of British origin working in the United States. He became a professor and head of the chemistry department at the New Hampshire College of Agriculture and the Mechanic Arts (now the University of New Hampshire) in Durham, New Hampshire, US. James developed the James method for the separation and identification of rare-earth elements by fractional precipitation and crystallization, and provided extracted elements to researchers worldwide. James was one of the first scientists to identify element 71, later named lutetium, and believed that he had found the final rare earth element 61, later named promethium. In 1999 the American Chemical Society recognized Charles James's work in chemical separations as a National Historic Chemical Landmark. Early life Charles James was born on 27 April 1880 to William James and Mary Diana Shatford-James at Earls Barton near Broughton, Northamptonshire. His father died when he w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earls Barton
Earls Barton is a village and civil parish in Northamptonshire, notable for its Anglo-Saxon church and shoe-making heritage. The village is in North Northamptonshire and was previously in the Borough of Wellingborough until 2021. At the time of the 2011 census, the population was 5,387. Earls Barton is renowned for its remarkable Anglo-Saxon heritage. History The original Anglo-Saxon village was known as ''Bere-tun'', or "a place for growing Barley", and was one of several Spring line settlements constructed along the north bank of the River Nene. Immediately prior to 1066, it was held by Bondi the staller, an Anglo-Danish noble, and senior member of Edward the Confessor's household; around 1070, it passed to Waltheof, Earl of Northumbria. In 1070, he married Judith of Lens, niece of William the Conqueror, recorded in the Domesday Book as owner of the land and mill of ''Buarton(e)''. He was made Earl of Northampton in 1071; it is thought these links, and those with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wellingborough
Wellingborough ( ) is a large market and commuter town in the unitary authority area of North Northamptonshire in the ceremonial county of Northamptonshire, England, 65 miles from London and from Northampton on the north side of the River Nene. Originally named "Wendelingburgh" (the stronghold of Wændel's people), the Anglo-Saxon settlement is mentioned in the Domesday Book of 1086 as "Wendelburie". The town was granted a royal market charter in 1201 by King John. At the 2011 census, the town's built-up area had a population of 50,577. The Wellingborough built-up area also includes suburbs Wilby, Great Doddington, Little Irchester and Redhill Grange. History The town was established in the Anglo-Saxon period and was called "Wendelingburgh". It is surrounded by five wells: Redwell, Hemmingwell, Witche's Well, Lady's Well and Whytewell, which appear on its coat of arms. Henrietta Maria came with her physician Théodore de Mayerne to take the waters on 14 July 1627. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ytterbium
Ytterbium is a chemical element with the symbol Yb and atomic number 70. It is a metal, the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, as in its oxide, halides, and other compounds. In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water molecules. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. In 1878, the Swiss chemist Jean Charles Galissard de Marignac separated from the rare earth "erbia" another independent component, which he called " ytterbia", for Ytterby, the village in Sweden near where he found the new component of erbium. He suspected that ytterbia was a compound of a new element that he called "ytterbium" (in total, four elements we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Bureau Of Standards
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical science laboratory programs that include nanoscale science and technology, engineering, information technology, neutron research, material measurement, and physical measurement. From 1901 to 1988, the agency was named the National Bureau of Standards. History Background The Articles of Confederation, ratified by the colonies in 1781, provided: The United States in Congress assembled shall also have the sole and exclusive right and power of regulating the alloy and value of coin struck by their own authority, or by that of the respective states—fixing the standards of weights and measures throughout the United States. Article 1, section 8, of the Constitution of the United States, ratified in 1789, granted these powers to the new Congre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ion Exchange
Ion exchange is a reversible interchange of one kind of ion present in an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or making water demineralised, the purification of chemicals and separation of substances. Ion exchange usually describes a process of purification of aqueous solutions using solid polymeric ion-exchange resin. More precisely, the term encompasses a large variety of processes where ions are exchanged between two electrolytes. Aside from its use to purify drinking water, the technique is widely applied for purification and separation of a variety of industrially and medicinally important chemicals. Although the term usually refers to applications of synthetic (man-made) resins, it can include many other materials such as soil. Typical ion exchangers are ion-exchange resins (functionalized porous or gel polymer), zeolites, montmorillonite, clay, and soil humus. Ion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of The American Chemical Society
The ''Journal of the American Chemical Society'' is a weekly peer-reviewed scientific journal that was established in 1879 by the American Chemical Society. The journal has absorbed two other publications in its history, the ''Journal of Analytical and Applied Chemistry'' (July 1893) and the ''American Chemical Journal'' (January 1914). It covers all fields of chemistry. Since 2021, the editor-in-chief is Erick M. Carreira ( ETH Zurich). In 2014, the journal moved to a hybrid open access publishing model. Abstracting and indexing The journal is abstracted and indexed in Chemical Abstracts Service, Scopus, EBSCO databases, ProQuest databases, Index Medicus/ MEDLINE/ PubMed, and the Science Citation Index Expanded. According to the '' Journal Citation Reports'', the journal has a 2021 impact factor of 16.383. Editors-in-chief The following people are or have been editor-in-chief: * 1879–1880 – Hermann Endemann * 1880–1881 – Gideon E. Moore * 1881–1882 – Hermann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanthanides
The lanthanide () or lanthanoid () series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare-earth elements or rare-earth metals. The informal chemical symbol Ln is used in general discussions of lanthanide chemistry to refer to any lanthanide. All but one of the lanthanides are f-block elements, corresponding to the filling of the 4f electron shell. There is some dispute on whether lanthanum or lutetium is a d-block element, but lutetium is usually considered so by those who study the matter; it is included due to its chemical similarities with the other 14. All lanthanide elements form trivalent cations, Ln3+, whose chemistry is largely determined by the ionic radius, which decreases steadily from lanthanum to lutetium. These elements are called lanthanides because the elements i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rare Earths
The rare-earth elements (REE), also called the rare-earth metals or (in context) rare-earth oxides or sometimes the lanthanides (yttrium and scandium are usually included as rare earths), are a set of 17 nearly-indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare earths have diverse applications in electrical and electronic components, lasers, glass, magnetic materials, and industrial processes. Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties, but have different electronic and magnetic properties. These metals tarnish slowly in air at room temperature and react slowly with cold water to form hydroxides, liberating hydrogen. They react with steam to form oxides, and at elevated temperature (400°C) ignite spontaneously. These elements and their compounds have no biological function other than in several specialized enzymes, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Chi Sigma
Alpha Chi Sigma () is a professional fraternity specializing in the fields of the chemical sciences. It has both collegiate and professional chapters throughout the United States consisting of both men and women and numbering more than 70,000 members. The fraternity aims to bring together students and professionals pursuing a wide variety of chemistry-related careers. History Founding The Alpha Chi Sigma fraternity was organized at the University of Wisconsin–Madison by a group of undergraduates who were fellow students in chemistry at that time. Later documents set the date of founding as December 11, 1902. The original founders were: * Raymond Tracy Conger * Harold Everett Eggers * Joseph Gerard Holty * Alfred Emil Kundert * Joseph Howard Mathews * Edward Gustav Mattke * Bart Eldred McCormick * Frank Joseph Petura * James Chisholm Silverthorn Coat of arms The seven symbols that stretch the length of the coat of arms are the "seven metals of the Ancients": gold, silver, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ezekiel Dimond
Ezekiel (; he, יְחֶזְקֵאל ''Yəḥezqēʾl'' ; in the Septuagint written in grc-koi, Ἰεζεκιήλ ) is the central protagonist of the Book of Ezekiel in the Hebrew Bible. In Judaism, Christianity, and Islam, Ezekiel is acknowledged as a Hebrew prophet. In Judaism and Christianity, he is also viewed as the 6th-century BCE author of the Book of Ezekiel, which reveals prophecies regarding the destruction of Jerusalem, and the restoration to the land of Israel. The name Ezekiel means "God is strong" or "God strengthens". In the Bible The author of the Book of Ezekiel presents himself as Ezekiel, the son of Buzi, born into a priestly (kohen) lineage. Apart from identifying himself, the author gives a date for the first divine encounter which he presents: "in the thirtieth year". Ezekiel describes his calling to be a prophet by going into great detail about his encounter with God and four "living creatures" with four wheels that stayed beside the creatures. Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Hampshire College Of Agriculture And The Mechanic Arts
New Hampshire College of Agriculture and the Mechanic Arts (NHC) was founded and incorporated in 1866, as a land grant college in Hanover in connection with Dartmouth College. In 1893, NHC moved to Durham, where it became the University of New Hampshire (UNH) in 1923, by an act of the New Hampshire General Court. History The Morrill Act of 1862 granted federal lands to New Hampshire for the establishment of an agricultural-mechanical college. The state incorporated New Hampshire College in 1866 and opened the college in 1868 in Hanover. The institution was officially associated with Dartmouth College and was directed by Dartmouth's president. Durham resident Benjamin Thompson left his farm and assets to the state for the establishment of an agricultural college. On January 30, 1890, Thompson died and his will became public. On March 5, 1891, Governor Hiram A. Tuttle signed an act accepting the conditions of Thompson's will. On April 10, 1891, Tuttle signed a bill authorizi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Lathrop Parsons
Charles Lathrop Parsons (March 23, 1867, New Marlboro, Massachusetts-February 13, 1954 Pocasset, Massachusetts) was an American chemist. He was a professor at the University of New Hampshire for twenty years, and then a chemist and mineralogist at the U.S. Bureau of Mines. For nearly forty years, Parsons served as executive secretary of the American Chemical Society, becoming known as "Mr. ACS" and substantially influencing the formation of the association. Education Charles Lathrop Parsons was born on March 23, 1867 in New Marlboro, Massachusetts to Benjamin Franklin and Leonora Frances (Bartlett) Parsons. When he was ten, they moved to Hawkinsville, Georgia. Parsons attended Cushing Academy, graduating in 1885. Parsons then studied at Cornell University, receiving his bachelor's degree from Cornell University in 1888. On December 29, 1887, he married Alice Douglas Robertson, also an undergraduate at Cornell. They had four daughters and a son: Anna, Leonora Elizabeth, Alice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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