Standard X-ray Diffraction Powder Patterns

Barium Bromide Monohydrate, BaBr2 -H2O (orthorhombic)Powder data cards. None.Additional published patterns. None.NBS sample. The sample of barium bromidemonohydrate was prepared from barium bromidedihydrate obtained from City Chemical Co., NewYork, N.Y. The hydrate was heated overnightat 85 to 90 C. Spectrographic analysis showedthe following major impurities: 0.01 to 0.1 percenteach of sodium and strontium; and 0.001 to 0.01percent each of calcium, magnesium, silicon, andtitanium.The color of the sample was white. The refractive index could not be determined because thesample was too fine.The t/-values of the three strongest lines are:3.170, 2.512, and 2.999 A.Structural data. Vainstein and Pinsker [1]in 1950 determined -.tihat barium bromide monohydratehas the barium chloride monohydratestructure, the space group D^-Pbnm (No. 62),and 4(BaBr2-H2O) per unit cell.19501963Vainstein andPinsker [!]_ _National Bureauof Standardsat 25 C.___..Lattice constantsaA9.419. 434. 001bA11. 5911. 650. 001cA4. 594. 6062. 0005The density of barium bromide monohydratecalculated from the NBS lattice constants is 4.135g/cm3 at 25 C.Reference[1] B. K. Vainstein and Z. G. Pinsker, Electron diffractionstudy of BaBr2 - H 2O, Zhur. Fiz. Khim. 24,432 (1950).hkl110020120210101111021121211230040131140301231041400002420022250, 122212510232042061441402270611080213, 512442461081303532043323, 362272343082571, 063Internal Standard,Tungsten, a -3.1648 ACu, 1.5405 A at 25 CdA7.365.834.964.384. 143.913. 6133.3773. 1702.9992. 9132. 8362. 7842. 5962. 5122.4622.3592.3032. 1892. 1422. 0912. 038L 8631. 8271.8071. 7881.7031.648L 5691.4761.4561.4481.4341. 4251. 38821. 37961. 36581. 35821. 34261. 29641. 24701. 23081. 2041I62355121382100481834146434262623