International Sulfur

International Sulfur Juhua Group Coip. (China)... 

Irving, P. Ed. Acidic deposition State of science and technology. National Acid Precipitation Assessment Program, Washington, DC, 1990. Clark, T.L., Denise, R.L., Seilhop, S.K., Voldner, E.C., Olson, M.P., and Alvo, M. International sulfur desposition model evaluation. Atmospheric Environment Service, Publication No. ARD-87-1, 1987, Downsview, Ontario, Canada. 

Six sulfur atoms lie practically in the planes of the two external triangular faces of the two octahedra, triply bridging all the nickel ions. The three internal sulfur atoms are quadruply bridging the nickel ions. 

The cyclocondensation of various diamines (some containing internal sulfur atoms) and aromatic dialdehydes is a useful route to the thiaaza-crown macrocycles. The resulting bis Schiff bases were reduced with sodium borohy-dride in good yields (method Z-10) (Baldwin et al., 1987 Lindoy and Smith,... 

One of the internal sulfurs of SgCl2 linear chain can now act as the nucleophile and attack a second molecule of CI2 ... 

Figala s use of the term shell-theory is indeed appropriate for Philalethes s concept of three sulfurs. By comparing The Epistle to the passages in De metallorum where Philalethes describes the structure of gold, we can further see that when he speaks of external and internal sulfurs, Philalethes has in mind the different layers of a complex corpuscle. The external sulfur of The Epistle is identical to the gross, superfluous impurities of De metallorum that had to be removed from base metals in order to effect their transmutation. This external shell is absent in gold, thus accounting for its resistance to corrosion. 

Hass, R. H., Fenton, D. M., Gowdy, H. W., and Bingham, F. E., 1982, Selectox and Unisulf New Technologies for Sulfur Recovery, paper presented at the International Sulfur 82 Conference, London, England, Nov. 14-17. 

Standards The international sulfur isotope scale is based on a troilite sample from the Canyon Diablo meteorite, termed CDT. The International Atomic Energy Agency (IAEA) in Vienna has promoted the use of a more accurate sulfur isotope scale, V-CDT, to replace CDT because of isotopic inhomogenities of +0.4(i in the original sample. A new Ag2S standard, IAEA S-1, has a defined value of -0.301 V-CDT. 

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