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hangcui326: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2014-03-28 09:03:35
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¾ÍÒ»ÖÖ¾§ÐÍ£º Card Information Names: Calcium Oxide Lime, syn calcia burnt lime quicklime Formula: Ca O PDF Number: 37-1497 Quality: star Subfiles: inorganic mineral alloy CEM CP EDU FOR NBS Cell and Symmetry Information System: cubic Space Group: Fm-3m (no. 225) a: 4.81059 Z: 4 Instrument Information Radiation: CuKa1 Wavelength: 1.5405981 Filter: Graph Instrument(d): diffractometer Cut Off: 17.7 Standard: W Instrument(I): diffractometer I type: peak heights Comments and Additional Information Preparation: The sample was prepared from calcium hydroxide obtained from Fisher Scientific Co., Fair Lawn, New Jersey, USA, by heating it to 925 degrees overnight. It was kept under a stream of dry N2 during data collection. Structure: The structure was determined by Oftedal (1). Pattern: See ICSD 75785 (PDF 01-082-1690). Temperature: The mean temperature of data collection was 25.3 degrees. Pattern: To replace 00-004-0777 (2). General: References to earlier patterns will be found in reference 4. Colour: Colorless General: Pattern reviewed by K. Martin and G. McCarthy, North Dakota State Univ., Fargo, North Dakota, USA, ICDD Grant-in-Aid (1990). Excepte for the (220) reflection, there is good agreement with experimental and calculated patterns. The experimental pattern had I(220)=245; the calculated value is I(220)=49. Literature References General: McMurdie, H., Morris, M., Evans, E.,Paretzkin, B., Wong-Ng, W., Hubbard, C. Powder Diffraction 1 266 (1986) Structure: 1. Oftedal, I. Z. Phys. Chem. (Leipzig) 128 154 (1927) Pattern: 2. Swanson, H., Tatge, E. Natl. Bur. Stand. (U.S.), Circ. 539 1 43 (1953) Peak Data PeakList h k l d I 1 1 1 2.7774 36 2 0 0 2.4059 100 2 2 0 1.7009 54 3 1 1 1.4505 16 2 2 2 1.3888 16 4 0 0 1.2026 6 3 3 1 1.1037 6 4 2 0 1.0758 16 4 2 2 0.9819 12 5 1 1 0.9257 6 4 4 0 0.8504 6 5 3 1 0.8131 10 6 0 0 0.8018 16 ÎÞ»úÎïµÄ¾§Ìå½á¹¹¿ÉÒÔͨ¹ýICDD»òNIST¡¢ICSDµÈ¹Ù·½»ú¹¹µÄÑÜÉäÊý¾Ý¿â²éѯ£¬×î³£ÓõÄÊÇICDD·¢²¼µÄ·ÛÄ©ÑÜÉäÊý¾Ý¿¨Æ¬¿â(PDF Database)¡£ |
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