Chemicals and Drugs
Borohydrides
ReductionNaBH4Direct borohydride fuel cellsMagnesium borohydrideLithiumHydrolysisAldehydes and ketonesHydrogen releaseMolecularDecomposition pathwaySchlesingerAlkalineBoronChemical2020LiBH4SynthesisBleaching agentPowderSolutionSignificantlyContentMethodProductionFormationApplicationsMetalScaleUniquePresentForm
Reduction7
  • Sodium borohydride is considered as a selective reducing agent due to its ability to selectively reduce aldehydes and ketones into their corresponding alcohols in the presence of other functional groups such as nitro, ester, amide, lactone, epoxide, and nitriles that are otherwise susceptible to reduction. (sigmaaldrich.com)
  • High dispersive copper nanoparticles were prepared by chemical reduction method using potassium borohydride as reducing agent. (csu.edu.cn)
  • Optically active aldiminato cobalt(II) complexes have been found to catalyze the enantioselective reduction of ketones with sodium borohydride affording the corresponding optically active secondary alcohols in high chemical yields with high enantioselectivities. (elsevierpure.com)
  • The enantioselective borohydride reduction is also applicable to not only C=O bonds in aromatic ketones but also to C=N bonds in aromatic imines. (elsevierpure.com)
  • Key Words: Acrolein-Protein adducts-Blood-Tritiated borohydride reduction. (utmb.edu)
  • At present, carbon nanotube supported monometallic Ru at 3 wt% Ru loading (3% Ru/CNT) per gram support and bimetallic RuMo at 3 wt% Ru loading per gram support (3% Ru-Mo/CNT) at varying Ru:Mo atomic ratios are synthesized via sodium borohydride (NaBH4) reduction method to investigate their performance towards NaBH4 hydrolysis. (yyu.edu.tr)
  • Reduction with sodium-borohydride yielded 81.8 percent of DMPS in urine, with a peak between 1 and 2 hours. (cdc.gov)
NaBH44
  • Sodium borohydride, NaBH4, a substance used in the synthesis of m. (pearson.com)
  • Sodium borohydride is the most investigated boron compound among hydrogen-carrier materials by researchers because of its stable structure, relatively high hydrogen storage capacity (NaBH4, 10.8% hydrogen by weighing), comparatively cost-efficiency, and nonflammability. (gazi.edu.tr)
  • This study aims to produce hydrogen from sodium borohydride solution whose hydrolysis was carried out both in the absence of any catalysts at above 100 degrees C. In order to increase the rate of hydrogen production using NaBH4 solution, the initial concentration of HCl and temperature were optimized using the Box- Wilson method. (gazi.edu.tr)
  • Sodium Borohydride NaBH4 is a common reducing reagent used with carbonyl compounds. (leah4sci.com)
Direct borohydride fuel cells2
  • Three zeolites (A, X and Y) with Ag incorporated in their cages are tested as bifunctional electrocatalysts for direct borohydride fuel cells (DBFCs). (ac.rs)
  • TY - JOUR AU - Milikić, Jadranka AU - Oliveira, Raisa C. P. AU - Stoševski, Ivan AU - Krstić, Jugoslav AU - Hercigonja, Radmila AU - Miljanić, Šćepan AU - Santos, Diogo M. F. AU - Šljukić, Biljana PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3317 AB - Three zeolites (A, X and Y) with Ag incorporated in their cages are tested as bifunctional electrocatalysts for direct borohydride fuel cells (DBFCs). (ac.rs)
Magnesium borohydride1
  • The facile formation of a magnesium borohydride species is critical in overcoming competing pathways in the selectivity-determining insertion step. (rsc.org)
Lithium7
  • The most important borohydrides are lithium borohydride and sodium borohydride, but other salts are well known (see Table). (wikipedia.org)
  • We are involved in providing superior grade lithium borohydride, typ. (axiomlithium.com)
  • 2 M). This lithium borohydride, typ. (axiomlithium.com)
  • Lithium borohydride is an inorganic compound with molecular formula LiBH4. (axiomlithium.com)
  • Lithium borohydride is a stronger reducing agent and is highly soluble in ethers. (axiomlithium.com)
  • Lithium borohydride proved to play an important role in assisting the fi nal decomposition of MgH2. (unimib.it)
  • Ces équipements « innovants » nous ont ainsi permis d'approfondir nos connaissances pour comprendre (i) les mécanismes de germination / croissance impliqués lors de la synthèse solvothermale de nanoparticules d'oxydes menée en conditions sous- ou supercritiques, (ii) les réactions aux interfaces lors de l'étude des réactions autoentretenues ou des réactions d'hydratation du lithium et (iii) les mécanismes de grossissement des grains et de densification impliqués lors d'un frittage SPS. (u-bourgogne.fr)
Hydrolysis1
  • The Co3O4 was believed as active species in catalytic hydrolysis of sodium borohydride. (utm.my)
Aldehydes and ketones2
  • Sodium borohydride is also used to reduce aldehydes and ketones in the production of pharmaceuticals including chloramphenicol, thiophenicol, vitamin A, atropine, and scopolamine, as well as many flavorings and aromas. (wikipedia.org)
  • Sodium borohydride reduces aldehydes and ketones to give the related alcohols. (choiceorg.com)
Hydrogen release1
  • For this reason, this study focuses on hydrogen release rates of alkaline sodium borohydride with different prepared catalysts. (yildiz.edu.tr)
Molecular1
  • Two important classes of hydrogen storage materials were considered: metallic alloys and molecular borohydrides. (unimib.it)
Decomposition pathway1
  • When the borohydride complex is volatile, this decomposition pathway is the basis of chemical vapor deposition (CVD), a way of depositing thin films of metal borides. (wikipedia.org)
Schlesinger2
  • Alkali metal borohydrides were first described in 1940 by Hermann Irving Schlesinger and Herbert C. Brown. (wikipedia.org)
  • H.C. Brown and his boss Schlesinger discovered sodium borohydride at University of Chicago in 1942. (factmr.com)
Alkaline1
  • Ag zeolite shows good activity for the anodic reaction, i.e., borohydride oxidation reaction (BOR) in alkaline media, presenting low onset potential and high current densities. (ac.rs)
Boron1
  • In the borohydride anion and most of its modifications, boron has a tetrahedral structure. (wikipedia.org)
Chemical2
  • Based on the increase in sodium borohydride demand among the industries, for instance increase in the adoption of the sewage treatment plant by food and beverage industries among others, along with the production of various antibiotics in pharmaceutical industry has driven the demand of the chemical. (factmr.com)
  • GJ Chemical, Midas Pharma GmbH, Montogomery Chemicals, Kemira, JSC Aviabor, Shanghai Shenyu Pharmaceutical & Chemical Co. Ltd., Vertellus etc. are amongst the prominent players in Sodium Borohydride market accounting for over 65% of the market revenues. (factmr.com)
20201
  • Plant shut downs in China, U.S. in the second quarter of 2020 has reduced the production scale of sodium borohydride. (factmr.com)
LiBH42
  • The mixed LiBH4-Mg(BH4)2 borohydride system was investigated, to determine its possible better performance as hydrogen storage material with respect to the end-members pure borohydrides. (unimib.it)
  • Al-Li-borohydride decomposes at ~70 °C, forming LiBH4. (unige.ch)
Synthesis1
  • Borohydrides find wide use as reducing agents in organic synthesis. (wikipedia.org)
Bleaching agent1
  • The growing trend of use of sodium borohydride as bleaching agent in the pharmaceutical industry with high sustainability rate it is expected to increase the growth of the market. (factmr.com)
Powder1
  • The refinements from synchrotron powder diffraction of different samples revealed the presence of limited amounts of chloride ions replacing the borohydride on one site. (unige.ch)
Solution1
  • Nanocrystalline superlattices in gold colloid solution have been prepared by ligand-induction using AuCl 3 reduced with sodium borohydride. (sigmaaldrich.com)
Significantly1
  • However, regional clusters including Asia and Africa backing the local manufacturers is presenting challenges to global players offering their products at higher price points which in turn is significantly disturbing the overall sodium borohydride market revenues. (factmr.com)
Content1
  • Because of their high hydrogen content, borohydride complexes and salts have been of interest in the context of hydrogen storage. (wikipedia.org)
Method1
  • Nucleophilic addition of hydride ion from sodium borohydride is an inexpensive alternative method for the Baylis-Hillman reaction to form [E]-a-methylcinnamic acids. (sigmaaldrich.com)
Production1
  • SODIUM BOROHYDRIDE (sodium tetrahydroborate) principal application is the production of sodium dithionite from sulfur dioxide. (choiceorg.com)
Formation2
  • Condensation cascades and methylgroup transfer reactions during the formation of arsane, methyl- and dimethylarsane by aqueous borohydride and (methyl) arsenates. (bvsalud.org)
  • C'est ma volonté d'aller plus loin dans la compréhension des phénomènes associés à la « Réactivité des Solides » et, en particulier, pour maîtriser les différentes étapes conduisant à la formation d'un massif dense à microstructure contrôlée à partir d'une poudre, qui a toujours été le fil conducteur de mes activités de recherche. (u-bourgogne.fr)
Applications1
  • L'autre temps fort de cette période se situe au niveau de la valorisation de mes travaux de recherche : (i) par l'obtention de nombreux contrats de recherche (6 ANR, 5 FUI, 5 programmes DGA, …) et (ii) par la création en 2009 du pôle Frittage Flash adossé à la plateforme FLAIR (Frittage Laser Applications Innovation et Recherche) du laboratoire. (u-bourgogne.fr)
Metal2
  • In its coordination complexes, the borohydride ion is bound to the metal by means of one to three bridging hydrogen atoms. (wikipedia.org)
  • Metal borohydride complexes can often be prepared by a simple salt elimination reaction: TiCl4 + 4 Li[BH4] + Et2O (solvent) → Ti[BH4]4·Et2O + 4 LiCl Some metal tetrahydroborates transform on heating to give metal borides. (wikipedia.org)
Scale1
  • Sodium borohydride is the borohydride that is produced on the largest scale industrially, estimated at 5000 tons/year in 2002. (wikipedia.org)
Unique1
  • The material shows a unique 3D framework structure within the borohydrides (space group=P-43n, a=11.3640(3) Å). (unige.ch)
Present1
Form1
  • The sodium borohydride market report provides analysis and information, according to market segments such as geographies, purity type, form type, end use & distribution channel. (factmr.com)