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Potassium Fluoride (potassium + fluoride)

Distribution by Scientific Domains
Chemistry88%

Selected Abstracts

Natural Phosphate and Potassium Fluoride Doped Natural Phosphates as New Catalysts for the Vilsmeier,Haack Type Reaction.

CHEMINFORM, Issue 24 2006
Mohamed Zahouily
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

Organic Reactions in Ionic Liquids: N-Alkylation of Cyclic Imides with Alkyl Halides Promoted by Potassium Fluoride.

CHEMINFORM, Issue 42 2004
Yi Hu
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Sonogashira Coupling Reaction with Palladium Powder, Potassium Fluoride in Aqueous Media.

CHEMINFORM, Issue 8 2004
Lei Wang
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Building Blocks for Polyamide Nucleic Acids: Facile Synthesis Using Potassium Fluoride Doped Natural Phosphate as Basic Catalyst.

CHEMINFORM, Issue 31 2003
A. Alahiane
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

ChemInform Abstract: Natural Phosphate Doped with Potassium Fluoride and Modified with Sodium Nitrate: Efficient Catalysts for the Knoevenagel Condensation.

CHEMINFORM, Issue 27 2002
Said Sebti
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

ChemInform Abstract: Suzuki Coupling with Ligandless Palladium and Potassium Fluoride.

CHEMINFORM, Issue 32 2001
George W. Kabalka
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

N -Arylation of N-H heterocycles with aryl bromides and aryl iodides using cui and kf/Al2O3

JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 6 2008
Rahman Hosseinzadeh
Copper-catalyzed system for N -arylation of N-H group in heterocycles such as indole, pyrrole and carbazole with aryl iodides and aryl bromides using potassium fluoride supported on alumina as a base is described. This is a simple and efficient method for the coupling of aryl iodides and bromides with N-H heterocycles. Different functionalized iodo and bromo arenes were coupled with N-H heterocycles using this system. [source]

Corrosion of magnesium alloys in commercial engine coolants

MATERIALS AND CORROSION/WERKSTOFFE UND KORROSION, Issue 1 2005
G. Song
Abstract A number of magnesium alloys show promise as engine block materials. However, a critical issue for the automotive industry is corrosion of the engine block by the coolant and this could limit the use of magnesium engine blocks. This work assesses the corrosion performance of conventional magnesium alloy AZ91D and a recently developed engine block magnesium alloy AM-SC1 in several commercial coolants. Immersion testing, hydrogen evolution measurement, galvanic current monitoring and the standard ASTM D1384 test were employed to reveal the corrosion performance of the magnesium alloys subjected to the coolants. The results show that the tested commercial coolants are corrosive to the magnesium alloys in terms of general and galvanic corrosion. The two magnesium alloys exhibited slightly different corrosion resistance to the coolants with AZ91D being more corrosion resistant than AM-SC1. The corrosivity varied from coolant to coolant. Generally speaking, an organic-acid based long life coolant was less corrosive to the magnesium alloys than a traditional coolant. Among the studied commercial coolants, Toyota long life coolant appeared to be the most promising one. In addition, it was found that potassium fluoride effectively inhibited corrosion of the magnesium alloys in the studied commercial coolants. Both general and galvanic corrosion rates were significantly decreased by addition of KF, and there were no evident side effects on the other engine block materials, such as copper, solder, brass, steel and aluminium alloys, in terms of their corrosion performance. The ASTM D 1384 test further confirmed these results and suggested that Toyota long life coolant with 1%wt KF addition is a promising coolant for magnesium engine blocks. [source]

Researches on a Novel Method for Fluorination of Halopyridazine Derivatives in Ionic Liquid

CHINESE JOURNAL OF CHEMISTRY, Issue 7 2007
Li Sun
Abstract A novel method for fluorination of halopyridazine derivatives with potassium fluoride was performed using a green chemistry procedure, including ionic liquid as an environmentally benign reaction medium and microwave irradiation with high yield. [source]