In synthetic method development, the most rewarding path is seldom a straight line. While our initial entry into pentafluorosulfanyl (SF5) chemistry did not go according to plan (due inaccessibility of reagents such as SF5Cl at time), “detour” led us establish mild and inexpensive oxidative fluorination conditions that made aryl-SF5 compound synthesis more accessible. The involved use potassium...

The paper presents the investigation of solid solutions formation in fluoride system Na5Al3F14-Na3AlF6-K3AlF6 with addition LiF. Two local regions were under consideration. first case concerns possibility potassium and sodium cations replacing lithium elpasolite (K2NaAlF6) when LiF is added to electrolyte. In second, effect on chiolite (Na5Al3F14) was studied. motivated by need control composit...

Oxygen, metals, silicon, and glass are raw materials that will be required for long-term habitation and production of structural materials and solar arrays on the Moon. A process sequence is proposed for refining these materials from lunar regolith, consisting of separating the required materials from lunar rock with fluorine. The fluorine is brought to the Moon in the form of potassium fluorid...

Different alkali metal atoms are observed to donate electrons to CF(3)Br molecules that are oriented in space. For collision energies high enough to overcome the Coulomb attraction, a positive ion/negative ion pair is observed and mass-analyzed using coincident time-of-flight mass spectroscopy. The alkali metal cation and various negative ions are observed. The most abundant negative ion is the...

This paper describes a indirect complexometric method for the determination of mercury in the presence of co-ions, based on the selective masking ability of potassium iodide. To the mixture of mercury (II) and other metal ion solution, EDTA solution was added in excess of the metal ions present. The pH of the solution was adjusted to 5.0-6.0 using solid hexamine (10 ± 2 g) and surplus EDTA was ...

In the presence of hydrogen peroxide and either potassium iodide, sodium chloride, or potassium bromide, purified human myeloperoxidase was rapidly lethal to several species of Candida. Its candidacidal activity was inhibited by cyanide, fluoride, and azide, and by heat inactivation of the enzyme. A hydrogen peroxidegenerating system consisting of d-amino acid oxidase, flavine-adenine dinucleot...

Mitochondria from rat liver were isolated in 0.25 M sucrose according to Schneider (5) and suspended in 1 ml. of 0.25 M sucrose per gm. of fresh liver. Rabbit liver mitochondria, used only for the experiments in Table I, were prepared by grinding the tissue in 0.25 M sucrose in a Waring blendor at reduced speed (6) and were suspended in 1 ml. of sucrose solution per 2 gm. of liver. The reaction...