Detail of "12640-40-3"

Reference

Bismuth oxide/chromium dioxide mixed phase pigments

Bismuth oxide/chromium dioxide mixed phase pigments. Koehler, Peter; Ringe, Peter; Heine, Heinrich (Bayer A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3315849 A1 19 Jan 1984, 14 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C09C001-34; C09C001-00; C01G037-00; C09D017-00; C08K003-10. APPLICATION: DE 83-3315849 30 Apr 1983. PRIORITY: DE 82-3226891 17 Jul 1982; DE 82-3226892 17 Jul 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) The yellow to orange-red oxide pigments Bi(2-x)CrxO3 (x = 0.05-0.5) are prepd. 1304-76-3 and 1308-38-9 are cas registry numbers of chemicals which are used as reagents here. by calcining Cr compds. with Bi(III) oxides prepd. by oxidn. of the metal in aq. suspension. Thus, O was passed into a suspension of 568.42 g Bi (particle size <40 m) in 6 L H2O stirred at 70° and 2800 rpm for 4 h, 48.00 g CrO3 was added and stirred for 4 h at 70°, and the slurry was filtered, dried at 105°, ground, calcined over 6 h to and 3 h at 750°, ground, milled, washed, and dried to give orange-red Bi1.7Cr0.3O3 having sp. surface 1.9 m2/g. .

Bismuth oxide-based glass comprising La2O3 for optical amplifiers and lasers

Bismuth oxide-based glass comprising La2O3 for optical amplifiers and lasers. Hayden, Joseph S.; Vullo, Paula (Schott Glas, Germany). PCT Int. Appl. WO 2003022763 A2 20 Mar 2003, 16 pp. DESIGNATED STATES: W: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW, AM, AZ, BY, KG, KZ, MD, RU, TJ, TM; RW: AT, BE, BF, BJ, CF, CG, CH, CI, CM, CY, DE, DK, ES, FI, FR, GA, GB, GR, IE, IT, LU, MC, ML, MR, NE, NL, PT, SE, SN, TD, TG, TR. (English). (World Intellectual Property Organization). CODEN: PIXXD2. CLASS: ICM: C03C003-064. APPLICATION: WO 2002-US28572 9 Sep 2002. PRIORITY: US 2001-PV317973 10 Sep 2001. DOCUMENT TYPE: Patent CA Section: 57 (Ceramics) Section cross-reference(s): 73 This invention relates to a bismuth oxide glass contg. lanthanum oxide, a process for the prodn. of such a glass, and the use of such a glass. The glass compn. contain Bi2O3 20-70, rare earth oxide 0-8, La2O3 0.001-20, F and/or Cl 0-10, and other oxides such as SiO2, GeO2, B2O3+Al2O3+Ga2O3 0.5-60 mol.%. The glass contains 31 rare earth compd. in a portion of 0.005-8 mol. based on oxide of Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and/or Lu, and. The glass is melted under oxidizing conditions by blowing oxygen into the glass melt. A polyvalent compd. selected from among Nb205, Sb205, SnO2, Cr2O3, As2O3, V205, and mixts. of these oxides is added to the glass mixt. to be melted. The resulting glass is suitable as matrix glass for fiber-like and planar optical amplifiers and lasers.