Written in English
|Statement||by Lloyd D. Jackson|
|The Physical Object|
|Pagination||49 leaves :|
|Number of Pages||49|
A study was made in which several metals were used to reduce YF/sub 3/ in a metallothermic process. The effectiveness of these reducing agents was compared to that of calcium metal as a reductant for YE/sub 3/. Lithium metal and a Ca-Li alloy were found to be efficient reductants when used in an intermediate alloy process. Moringa oleifera (M. oleifera) is an angiosperm plant, native of the Indian subcontinent, where its various parts have been utilized throughout history as food and is now cultivated in all tropical and sub-tropical regions of the world. The nutritional, prophylactic, and therapeutic virtues of this plant are being extolled on the by: ied commonly in laboratory courses in organic chemistry. A feature of the book is the introduction of directions for the preparation of certain compounds on a very small scale. Stu dents often acquire the habit of careless work in the laboratory practice in organic chemistry. Preparation-work on the small. Thiocyanate (SCN) functions in host defense as part of the secreted lactoperoxidase (LPO) microbicidal pathway. SCN is the preferred substrate for LPO-driven catalytic reduction of hydrogen peroxide (H 2 O 2) forming hypothiocyanous acid (HOSCN).HOSCN is selectively generated by many peroxidase enzymes that can utilize SCN including: eosinophil peroxidase (EPO), gastric Cited by:
thiocyanate [thi″o-si´ah-nāt] the S=C=N− anion or a salt or ester containing this ion. Thiocyanate is produced in the metabolism of cysteine and detoxification of cyanide and is excreted in the urine. thiocyanate (thī'ō-sī'ă-nāt), A salt of thiocyanic acid. Synonym(s): rhodanate, sulfocyanate thiocyanate S=C=N– Toxicology A salt of. A cross-coupling reaction of arylboronic acids with KSCN salt to yield aryl thiocyanates is catalyzed by copper acetate in the presence of 4-methylpyridine serving both as ligand and base under MPa of molecular oxygen. Various arylboronic acids were suitable under the reaction conditions. N. Sun, H. Zhang, W. Mo. Thiocyanate is analogous to the cyanate ion, [OCN]-, wherein oxygen is replaced by sulfur. [SCN]- is one of the pseudohalogens, due to the similarity of its reactions to that of halide ions. Thiocyanate was formerly known as rhodanide (from a Greek word for rose) because of the red color of its complexes with anates are typically colorless. characterised by their quick-setting properties at moderate to high dosages, probably by promoting the flash-setting of tricalcium aluminate (C 3 A) . One study, comparing sodium.
Providing a comprehensive overview of the preparation, properties, and synthetic applications of this important class of reagents, the text is presented in the following way: The introductory Author: Viktor Zhdankin. A recent study showed that cigarette smoking lowers the amount of iodine in breast milk. This may be related to the thiocyanate in The Thyroid and the Environment By Elizabeth N. Pearce, MD, MSc Dr. Pearce is Associate Professor of Medicine at Boston University School of Medicine. She received her medical degree from Harvard Medical School and. Selenium is a chemical element with the symbol Se and atomic number It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to rarely occurs in its elemental state or as pure ore compounds in the Earth's crust. The book first discusses the occurrence of thorium and its properties. Topics include the position of thorium in the periodic system; methods of preparation for metallic thorium; and radioactivity of thorium isotopes. The text surveys the chemical and physical methods in identifying thorium.