Standard X-ray Diffraction Powder Patterns
Standard X-ray Diffraction Powder Patterns
Standard X-ray Diffraction Powder Patterns
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<strong>Powder</strong> data cardsCardnumber3-0453Indexlines3. 302. 972. 35Cadmium Sulfate, CdSO4 (orthorhombic)SourceDow Chemical company.Additional published patterns. None.NBS sample. The sample of cadmium sulfatewas prepared at NBS from cadmium carbonatetreated with an excess of sulfuric acid and heatedto dry ness. Spectrographic analysis showed themajor impurities to be 0.001 to 0.01 percent eachof aluminum and silicon.20hkl001110101020111021200002121012201211031220131122202040212032041310013231301222141311113321240232302, 203142051, 150331133151Internal <strong>Standard</strong>,Tungsten, a ==3. 1648 ACu, 1.5405 i at 25 CdA4. 7013. 8263. 3293. 2772. 9612. 6882. 3582. 3522. 3362.2122. 10442. 00681. 98271. 91551. 82731. 77041. 66481. 63911. 61351, 60041. 54851. 52901. 52501. 51791. 49081. 48431. 47041. 45371. 44971. 35711. 34591. 32431. 30591. 29341. 26341. 23171. 22931. 220419611963/174110079686353237242618222117193121811387764971711694817115The sample was white. The indices of refraction could not be determined because the samplewas too fine.The d-values of the three strongest lines are:3.329, 3.277, and 2.961 A.Structural data. Kokkoros and Rentzeperis [1]in 1961 determined cadmium sulfate is orthorhombic with the most probable space group DJh-Pmmn (No. 59) with 2(CdSO4 ) per unit cell.Lattice constantsKokkoros andRentzeperis[1].National Bureauof <strong>Standard</strong>sat 25 °C.aA4 7094. 71746A6. 5626. 5590cA4. 6944. 7012The density of cadium sulfate calculated fromNBS lattice constants is 4.759 g/cm3 at 25 °C.kkl322223400014052114251420, 303024341313060421124204412161252342134224260333351, 153261440044432Internal <strong>Standard</strong>, 0Tungsten, a = 3. 1648 ACu, 1.5405 A at 25 CdA1, 21401. 21271. 17941. 15701, 14541. 12351. 11361. 11001. 10621. 10321. 09431. 09331. 07981. 07771. 05191. 04071. 03871. 03051. 02211. 01131. 00160. 9918. 9897. 9839. 9702. 9576. 9552. 949845Reference[1] P. A. Kokkoros and P. J. Rentzeperis, X-<strong>ray</strong> investigation of the anhydrous cadmium and mercuricsulphates, Acta Cryst. 14, 329-330 (1961).I64335333546522476323335433