Detail of "10038-98-9"

Reference

The chlorination equilibrium of germanium oxides

The chlorination equilibrium of germanium oxides. Rau, Hans (Forschungslab. Aachen, Philips G.m.b.H., Aachen D-5100, Fed. Rep. Ger.). J. Chem. Thermodyn., 16(3), 287-93 (English) 1984. 1310-53-8 and 10038-98-9 are also in the experiment. CODEN: JCTDAF. ISSN: 0021-9614. DOCUMENT TYPE: Journal CA Section: 69 (Thermodynamics, Thermochemistry, and Thermal Properties) Section cross-reference(s): 68 The reactions of tetragonal, hexagonal, and glassy GeO2 with Cl were studied. From the measured equil. consts., a 3rd-law std. molar enthalpy of formation of GeCl4 was detd. .

An optical waveguide on a planar glass substrate

An optical waveguide on a planar glass substrate.Some chemicals with cas registry numbers like 60676-86-0 and 10038-98-9 are also used. Arai, Motohiro (Nippon Electric Co., Ltd., Japan). U.S. US 4411678 A 25 Oct 1983, 4 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C03B019-00; C03C017-02. NCL: 065003120. APPLICATION: US 82-364048 31 Mar 1982. PRIORITY: JP 81-48411 2 Apr 1981. DOCUMENT TYPE: Patent CA Section: 57 (Ceramics) Optical waveguides, with low transmission losses, are prepd. by focusing a collimated laser beam on a glass substrate in a reaction chamber into which glass-forming materials, e.g., GeCl4, SiCl4, and O, are supplied. The temp. is increased to a high enough level to cause reaction of the glass-forming materials. Repeated scanning of the substrate with the laser beam forms a no. of deposited glass layers. Thus, SiCl4, GeCl4, and O are fed into a reaction chamber contg. a quartz glass substrate which is irradiated by a CO2 laser beam (10.6 m wavelength) collimated to 50 m or the substrate surface. Scanning with a 0.3 W laser beam at 1 mm/s is sufficient to give the required heating for oxidn. of the chlorides and melting of the GeO2-doped SiO2 layer to a transparent glass layer. The glass layer formed had width ~50 m, thickness ~3 m, and n ~1% higher than the substrate. Scanning the laser beam 15 consecutive times resulted in a multimode waveguide ~50 m thick and suitable for coupling to a std. optical fiber of 50 m core diam. .