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Weber indices

Many years later Weber indicated that the natural rubber molecule was unsaturated since it reacted with bromine to give a material of empirical formula C5H8Br2. This clearly implied an addition reaction to a double bond. This was borne out by the more accurate and reliable iodine chloride method of Kemp in 1927 and the refractive index technique of Macallum and Whitby in 1924. [Pg.12]

Library of Congress Cataloging in Publication Data. Main entry under title Cyclic compounds. (Topics in current chemistry 57). Bibliography p. Includes index. CONTENTS Eicher, T. and Weber, J. L. Structure and reactivity of cyclopropenones and triafulvenes. — Sargent, M. V. and Cresp, T. M. The higher annulenones. 1. Cyclic compounds—Addresses, essays, lectures. I. Eicher, Theophil, 1932- II. Series. [Pg.6]

Today, GC-MS (see Section 4.1.1) is a golden standard for detection and quantification of drugs and poisons volatile under GC conditions, whereas nonvolatile compounds require LC-MS (see Section 4.1.2). The GC-MS technique is much more popular for identification purposes than LC-MS, because of the easy availability of the reference mass spectra for many xenobiotics and their derivatives, either in printed or computer form. The most popular libraries are the NIST library, which contains the mass spectra of 130,000 compounds, the Wiley Registry of Mass Spectral Data, which contains 390,000 reference spectra, and the Pfleger-Maurer-Weber library, with 6,300 mass spectra and other data, such as chromatographic retention indexes. [Pg.310]

Cameron, D.R., Weber, M.E., Idziak, E.S, Neufeld, R.J., and Cooper, D.G. 1991. Determination of interfacial areas in emulsions using turbidimetric and droplet size data Correction of the formula for emulsifying activity index. J. Agric. Food Chem. 39 655-659. [Pg.293]

Topics in current chemistry = Fortschritte der Chemischen Forschung 128, 132, 136) Vol. 2 — edited by F. Vogtle, E. Weber. Includes bibliographies and indexes. 1. Biological chemistry — Collected works. [Pg.184]

Any theory involving compensation must take into account the fact that the total birefringence (form plus intrinsic) of all oriented actomyosin systems varied greatly with the refractive index of the medium (H. H. Weber, 1934b), whereas the I bands remain practically isotropic... [Pg.242]

Volume 28. Morphogenesis, differentiation and development I. Fertilization by A. Monroy. II. Behaviour of nucleic acids during early development by J. Brachet. 111. Biochemical pathways in embryos by E. Scarano and G. Augusti-Tocco. IV. Factors of embryonic induction by T. Yamada. V. Biochemistry of amphibian metamorphosis by R. Weber. VI. Biochemical correlations in insect metamorphosis by L. I. Gilbert. Subject index. [Pg.216]

Mellor, Chemical Statics and DynamicSy 1904, 285, 371 G. Woker, 1910, i, index Hem-mungswirkung , 592 f. K. C. Bailey, The Retardation of Chemical Reactions, 1937 K. Weber, Inhibitorwirkung. Fine Darstellung der negativen Katalyse in Losungen. Die chemische Analyse, Stuttgart, 1938, xl. [Pg.600]

Corminboeuf, Heine, Weber, Seifert, Reviakine, < "> Schleyer GIAO-CMO NICS NICSzz and NICSzzz tensors as aromaticity index M... [Pg.49]

M.J. Dodge Refractive index. In Optical Materials, CRC Handbook of Laser Science and Technology, Vol.4, Subvol.2, ed. by M.J. Weber (CRC, Boca Raton... [Pg.898]

The Weber number. We, represents an index of the inertial forces to surface tension forces and it is important in analyzing thin films and the formation of bubbles and droplets. The Bond number is often used when considering static surface tension effects, while the Weber num-... [Pg.1951]

X 60 cm. The total volume of Nd laser glass for multiple beam lasers can be >10 cm . Important materials properties for these high-power lasers are the nonlinear refractive index which governs the deliverable focusable power to a fusion target, the gain coefficient with affects the overall efficiency, and the stimulated emission cross section which determines the gain saturation behavior (Weber, 1976). [Pg.304]

Cloud point temperature (CP, determined at 1 K min- ) and coexistence ( determined by refractive index of the low and high polymer concentration phases after 24 h equilibration) curves obtained for a binary mixture of a comb-shaped poly[oligo(2-ethyl-2-oxazoline) methacrylate] in water.The coexistence curve is fitted to guide the eye (Weber et al., 2013). (Source-. Reprinted with permission from Wiley.)... [Pg.20]

Library of Congress Cataloging in Publication Data. Weber, William P 1940-. Phase transfer catalysis in organic synthesis. (Reactivity and structure v. 4) Includes bibliographies and indexes. 1. Catalysis. 2. Chemistry, Organic—Synthesis. I. Gokel, G. W., 1946- joint author. II. Title. III. Series. QD505.W4. 547.2. 77-22798... [Pg.285]

The disodium salt of 2, 4, 5, 7 -tetraiodofluorescein, erythrosine, is listed by the Colour Index (1971) as Cl 45430/Acid Red 51 and Cl 45430 1/Pigment Red 172 as the aluminium salt. It was discovered by Kussmaul in 1876 (Colour Index, 1971). Sources such as Weber (1923) and Heaton (1928) say that, along with eosin and related dye compounds, it was used to form lake pigments such as that commonly known as geranium lake (qq.v.). [Pg.153]


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See also in sourсe #XX -- [ Pg.35 ]




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