Standard X-ray Diffraction Powder Patterns

More documents

Recommendations

Info

$Standard X-ray Diffraction Powder Patterns$

$Standard X-ray Diffraction$

Potassium Zinc Decavanadete 16 Hydrate, K2Zn2V,,O2s '16H2O (triclinic)—ContinuedLattice constantsabca0y19551963Evans, Mrose and Marvin[1].National Bureau of Standards at 25 °C.A10, 7610. 778±.003A11. 1711. 146±.003A8. 778.774±. 003104° 50'104°57'±1'109° 29'109°32'±1'65°05'65°0'±2'Rubidium Chromate, Rb2CrO4Powder data cards. None.Additional published patterns. None.NBS sample. The sample of rubidium chromatewas obtained from the Fairmount ChemicalCo., Inc., Newark, N.J. Spectrographic analysisshowed the following major impurities: 0.1 to 1.0percent potassium; 0.01 to 0.1 percent sodium;and 0.001 to 0.01 percent each of aluminum,barium, calcium, and silicon.The color of the sample was yellow and it isoptically positive. The refractive indices areNa= 1.715, N0= 1.725, and N7= 1.759.The d-values of the three strongest lines are:3.207, 3.191, and 3.083 A.Structural data. Smith and Colby [1] in 1940determined that rubidium chromate has the potassium sulfate structure and the space groupD^-Pnam (No. 62) with 4(Rb2CrO4) per unit cell.The lattice constants reported by Smith andColby have been converted from kX to angstromunits for comparison with NBS values.19401963Smith andColbv [1].National Bureauof Standardsat 25° C.Lattice constantsaA7.9998. 001±.001boA10. 72610. 722±.001cA6. 3016.074±.001The density of rubidium chromate calculatedfrom NBS lattice constants is 3.657 g/cm3 at25° C.Reference[I] H. W. Smith, Jr. and M. Y. Colby, The crystal structure of rubidium chromate, B^CrO^ Z. Krist.103, 90-95 (1940).(orthorhombic)hkl020120200210121201130220211031002131221040230022310140122231320311212141240222330241150051042232400312401340420411123341, 251060213033430Internal Standard, 0Tungsten a = 3. 1648 ACu, 1.5405 A at 25 Cd' A5. 3654.4514. 0043. 7493. 5933. 3423. 2633.2073. 1913.0833. 0372.8722. 8382. 6802. 6642. 6442.5882.5412. 5092. 4422, 3882. 3802. 3592. 3442. 2262.2052. 1382. 0912.0712. 0212. 00982. 00352. 00101. 96971. 89971. 89081. 87371. 87031. 84261. 80471. 78591. 78131. 76211. 74617126143616181001009557413121833061154142214253011712411201812105796613151046
Silver Antimony Telluride, AgSbTe2 (cubic)Powder data cards. None.Additional published patterns. Geller and Wernick[1] 1959.NBS sample. The sample of silver antimonytelluride was obtained from Semitronics Inc., Winchester, Mass. Spectrographic analysis showedthe following major impurities: 0.01 to 0.1 percenteach of aluminum, bismuth, copper, iron, indium,and tin; and 0.001 to 0.01 percent each of gold,calcium, chromium, magnesium, nickel, and titanium.The sample was an opaque metallic graypowder.The d-values of the three strongest lines are:3.042, 2.151, and 1.7554 A.Structural data. Geller and Wernick [1] in1959 determined that silver antimony telluride hasthe sodium chloride structure, the space group6>£-Fm3m (No. 225), and 2(AgSbTe2 ) per unitcell.19591963Lattice constantsGeller and Wernick [1] at 25 °C__National Bureau of Standards at25 °C------ - --- - --------A6.0786.080The density of silver antimony telluride calculated from the NBS lattice constant is 7.163g/cms at 25 °C.hkl111200220311222400331420422511440531600620622444711640642dA3. 5113.0402. 1511. 83321. 75541. 52031. 39461. 35971. 24111. 17031. 07481. 02761. 01330. 9614.9166.8775. 8513.8433.8125Internal Standard,Tungsten, a =3. 1648 ACu, 1.5405 A at 25 °CAverage value of last fiv e lines_____._____6. 080Reference7110065
Page 1 and 2: c ^r.
Page 3 and 4: UNITED STATES DEPARTMENT OF COMMERC
Page 5 and 6: Introduction.. _ __________________
Page 7 and 8: STANDARD X-RAY DIFFRACTION POWDER P
Page 9 and 10: D. E. Appleman, and D. Handworker.
Page 11 and 12: Ammonium Fluoberyllate, (NH4) 2BeF4
Page 13 and 14: Ammonium Fluoborate, NH4BF4 (orthor
Page 15 and 16: Arsenic Trioxide, claudetite, As2O3
Page 17 and 18: Powder data cardsBarium Stannate, B
Page 19 and 20: Bismuth Orthophosphate, BiPO4 (trig
Page 21 and 22: Bismuth Orthovanadate (high form),
Page 23 and 24: Bismuth Telluride (tellurobismuthit
Page 25 and 26: Cadmium Perchlorate Hexahydrate, Cd
Page 27 and 28: Cadmium Telluride, CdTe (cubic)Powd
Page 29 and 30: Calcium Fluoride Phosphate (fluorap
Page 31 and 32: Cesium Chromate, Cs>CrO 4 (orthorho
Page 33 and 34: Cobalt Fluosilkate Hexahydrate, CoS
Page 35 and 36: Copper Sulfate (chalcocyanite), CuS
Page 37 and 38: Erbium Arsenate, ErAsO4 (tetragonal
Page 39 and 40: Gallium Arsenide, GaAs (cubic)Powde
Page 41 and 42: Indium Arsenide, InAs (cubic)Powder
Page 43 and 44: Lanthanum Niobium Titanium Oxide, L
Page 45 and 46: Lithium Phosphate, high form, Li3PO
Page 47 and 48: Magnesium Ammonium Phosphate Hexahy
Page 49 and 50: Potossium Chlorate, KCIO3 (monoclin
Page 51: Potassium Zinc Decavanadate 16 Hydr
Page 55 and 56: Sodium Trimetaphosphate, Na3P3O9 (o
Page 57 and 58: Sodium Trimetaphosphate Monohydrate
Page 59 and 60: Strontium 1:1 Berate, SrO-B2O3 (ort
Page 61 and 62: Thallium Chromate, Tl2CrO4 (orthorh
Page 63 and 64: Titanium Dioxide, brookite, TiO2 (o
Page 65 and 66: CUMULATIVE INDEX TO CIRCULAR 539, V

Standard X-ray Diffraction Powder Patterns

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?