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Journal articles on the topic 'Hemihydrate'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Feng, Yan, Rongxin Guo та Zhiwei Lin. "Effect of Aluminum Sulfate and Succinic Acid on the Growth Law of α-Calcium Sulfate Hemihydrate under Microwave Irradiation". Advances in Materials Science and Engineering 2021 (12 квітня 2021): 1–13. http://dx.doi.org/10.1155/2021/6630638.

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The existing α-hemihydrate gypsum preparation process has low production efficiency and high energy consumption. In this paper, α-type hemihydrate gypsum was prepared by microwave irradiation using phosphogypsum as the raw material, calcium chloride solution as the reaction medium, and succinic acid and aluminum sulfate as crystal-transforming agents. Both aluminum sulfate and succinic acid were studied to determine the mechanism influencing the effect on the growth of α-type hemihydrate gypsum crystals. This study found that, without added succinic acid or aluminum ions, the crystal transform

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2

Abu Zeitoun, E., C. Pritzel, Y. Sakalli та R. Trettin. "The Mechanism of the First Hydration-Dehydration Cycle of Pure α- and β-CaSO4•0.5H2O". Advances in Materials Science and Engineering 2020 (3 липня 2020): 1–11. http://dx.doi.org/10.1155/2020/1732621.

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The objective of this research was to understand the dehydration mechanism of technical dihydrate and the variation of the physical properties of β-hemihydrate after the first hydration-dehydration process. In this study, the recycling mechanism of different hemihydrate types as raw material was investigated. The influence of the first hydration-dehydration process on the hydration rate, microstructure, and mechanical properties of recycled hemihydrate were characterized by differential calorimetric analysis (DCA), calcium ion-selective electrode (Ca2+-ISE), conductivity, particle size distrib

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3

Liu, Xian Feng, Jia Hui Peng, Jian Xin Zhang, Ming Zheng Chen та Qian Dong. "Effect of Polycarboxylicacid Plasticizer on Characteristics of α-Calcium Sulfate Hemihydrate". Applied Mechanics and Materials 423-426 (вересень 2013): 1085–89. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1085.

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Purpose: studied the mechanism of polycarboxylicacid plasticizing effect on α-calcium sulfate hemihydrate. Methods: the adsorbed amount was tested by ultraviolet visible absorption spectrum method, ζ potential was measured by micro-electrophoresis analysis, and the corresponding workability was studied. Results: firstly, polycarboxylicacid plasticizer was adsorbed on α-calcium sulfate hemihydrate by Van Der Waals force and the saturated adsorption quantity of polycarboxylicacid plasticizer (HC) was about 5.8mg/g; secondly, the decisive factor for polycarboxylicacid plasticizer to disperse α-ca

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4

Angel, A., R. Peischl, and A. Hawi. "Low-Voltage scanning electron microscope (LVSEM) determination of nevirapine Crystal Habit in a Pharmaceutical Suspension." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1326–27. http://dx.doi.org/10.1017/s0424820100131267.

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LVSEM permits the examination of materials with reduced radiation damage and high contrast, factors which are critical to the successful examination of organic crystals. In this study, LVSEM was applied to characterize the structure of a beam sensitive anhydrous crystal form and its subsequent conversion to the hemihydrate form in an aqueous suspension.Nevirapine, a dipyridodiazepenone compound, is a reverse transcriptase inhibitor currently being developed for the treatment of AIDS. Nevirapine exists as the hemihydrate stable form and as the anhydrous metastable form. The hemihydrate crystals

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5

Hernández Linares, María-Guadalupe, Sylvain Bernès, Marcos Flores-Alamo, Gabriel Guerrero-Luna, and Anselmo A. Martínez-Gallegos. "Diosgenin hemihydrate." Acta Crystallographica Section E Structure Reports Online 68, no. 8 (2012): o2357. http://dx.doi.org/10.1107/s1600536812027912.

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Diosgenin [or (22R,25R)-spirost-5-en-3β-ol] is the starting material of the Marker degradation, a cheap semi-synthesis of progesterone, which has been designated as an International Historic Chemical Landmark. Thus far, a single X-ray structure for diosgenin is known, namely its dimethyl sulfoxide solvate [Zhanget al.(2005).Acta Cryst.E61, o2324–o2325]. We have now determined the structure of the hemihydrate, C27H42O3·0.5H2O. The asymmetric unit contains two diosgenin molecules, with quite similar conformations, and one water molecule. Hydroxy groups in steroids and water molecules form O—H...

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6

Bhattacharya, Abir, Bhairab Nath Roy, Girij Pal Singh, Dhananjai Srivastava, and Alok K. Mukherjee. "Lamivudine hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 66, no. 7 (2010): o329—o333. http://dx.doi.org/10.1107/s0108270110020317.

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7

Zhang, Rong-Rong, Zhi-Guo Ma, Guo-Qiang Li, Paul Pui-Hay But, and Ren-Wang Jiang. "Tuberostemoamide hemihydrate." Acta Crystallographica Section E Structure Reports Online 67, no. 11 (2011): o3056. http://dx.doi.org/10.1107/s1600536811043340.

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8

Zamarrud, Viqar Uddin Ahmad, Shazia Anjum, Faryal Wali Mohammad, and M. Qaiser. "Desmethylbergenin hemihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4626—o4628. http://dx.doi.org/10.1107/s1600536806037640.

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9

Allan, D. R. "Cyclobutylamine hemihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 2 (2006): o751—o752. http://dx.doi.org/10.1107/s1600536806002327.

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10

Nečas, Marek, Jiří Dostál, and Jiří Slavík. "(–)-Argemonine hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 57, no. 1 (2001): 66–67. http://dx.doi.org/10.1107/s010827010001252x.

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11

Benavides, Gloria A., Frank R. Fronczek, and Nikolaus H. Fischer. "Stigmasterol hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 58, no. 3 (2002): o131—o132. http://dx.doi.org/10.1107/s0108270102000434.

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12

Deng, Liping, Wei Wang, and Jianguo Lv. "Ornidazole hemihydrate." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4204. http://dx.doi.org/10.1107/s1600536807045680.

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The asymmetric unit of the racemic title compound, C7H10ClN3O3·0.5H2O, has two independent molecules of ornidazole. The crystal structure is formed via intermolecular hydrogen bonds involving the water molecules.

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13

Pritzel, Christian, Mohammadamin Emami, Sandra Afflerbach, Manuela Killian та Reinhard Trettin. "Formation of α-Hemihydrate Inside of a Gypsum Crystal during the Dehydration Process". Crystals 12, № 12 (2022): 1780. http://dx.doi.org/10.3390/cryst12121780.

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Gypsum (calcium sulfate dihydrate) is one of the most used inorganic binding materials in the world. During calcination, calcium sulfate subhydrates are formed and, for technical reasons, are mixed with water to form dihydrate again. Therefore, the dehydration process of gypsum and the rehydration of hemihydrate were investigated. This dehydration process is technically performed in three different ways. Heating up, i.e., in a rotary kiln, leads to a preferred formation of β-hemihydrate, which crystallizes in comparatively small crystals. Similar results can be achieved by recrystallization fr

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14

Wang, Yu Bin, Le Yu, Hua Wang, and Ting Shu He. "Effect of Sodium Citrate on the Hydration Capacity of Hemihydrate Calcium Sulfate Whiskers." Applied Mechanics and Materials 584-586 (July 2014): 1618–21. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1618.

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The influence of sodium citrate on the hydration capacity of hemihydrate calcium sulfate whiskers was investigated. The products were characterized by FTIR, SEM and XRD.The results show that the absorption of the sodium citrate on the surface of the hemihydrate calcium sulfate whiskers is not uniform, and the adsorption state also changed with the amount of sodium citrate. Sodium citrate plays role on the hydration capacity of hemihydrate calcium sulfate whiskers.

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15

Liu, Xian Feng, Jia Hui Peng, Ming Zheng Chen, Leng Bai та Liu Liu. "Effect of Butane Diacid on Crystal Morphology and Reaction Process of α-Calcium Sulfate Hemihydrate in Preparation from Flue Gas Desulphurization Gypsum". Advanced Materials Research 838-841 (листопад 2013): 2681–84. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2681.

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Modifying crystal morphology was the key technology of the preparation of α-calcium sulfate hemihydrate from flue gas desulphurization gypsum using the hydrothermal method under atmospheric pressure. For exploring the mechanism of butane diacid effect on crystal morphology of α-calcium sulfate hemihydrate in preparation from flue gas desulphurization gypsum, the crystal morphology, convert ratio, and reaction process of α-calcium sulfate hemihydrate were studied by scanning electron microscope observation, and crystal water testing. The results showed, firstly, crystal modifier made the growth

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16

Zhu, Xin Feng, Yu Bin Wang, Xiao Wang, and Liu Shuan Yang. "Integration of Preparation and Stabilization for Hemihydrate Calcium Sulfate Whiskers." Advanced Materials Research 239-242 (May 2011): 3074–77. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.3074.

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The integration process of hemihydrate calcium sulfate whiskers with optimum additives was carried out, and the influence of reagents on the crystal shape and stability of hemihydrate calcium sulfate whiskers was investigated too. The products were characterized by FT-IR, SEM and XRD.The results show that the integration of preparation and stabilization of hemihydrate calcium sulfate whiskers can be achieved with addition of 0.025% sodium stearate and 0.15% sodium oleate by adding agents in different steps.

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17

Kersten, Kortney M., and Adam J. Matzger. "Improved pharmacokinetics of mercaptopurine afforded by a thermally robust hemihydrate." Chemical Communications 52, no. 30 (2016): 5281–84. http://dx.doi.org/10.1039/c6cc00424e.

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A novel hemihydrate form of the antileukemia drug 6-mercaptopurine is discovered. This hemihydrate shows double the solubility and almost three times the bioavailability of the commercially used monohydrate form.

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18

Wang, Xiao, Yu Bin Wang, Liu Shuan Yang, Xiao Fei Wang, and Jia Kuan Yang. "Stabilization Effect of Sodium Phosphate on Hemihydrate Calcium Sulfate Whiskers." Advanced Materials Research 287-290 (July 2011): 535–38. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.535.

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Stabilization effect of sodium phosphate on crystalline phase and crystal shape of hemihydrate calcium sulfate whiskers was investigated. Morphology, thermal stability and phase composition of stabilized hemihydrate calcium sulfate whiskers were characterized by means of SEM, DSC-TG and XRD respectively. Results indicated that crystalline shape of hemihydrate calcium sulfate whiskers could be invariable in two hours at 100 °C with addition of 0.10 wt % sodium phosphate for 20 min. Meanwhile sodium phosphate had a good effect on whiskers morphology stabilization.

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19

Chen, Chang, Yu Bin Wang, Le Yu, Ying Jie Song, Shan Shan Zhang, and Ai Zhang. "Hydration Ability of Hemihydrate Calcium Sulphate Whiskers with Different Content of Sodium Phosphate." Applied Mechanics and Materials 638-640 (September 2014): 1346–49. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1346.

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Different content of sodium phosphate was added into the hemihydrates sulphate whiskers for 30 min to 2h of standing time. The treated products were researched by SEM, TG-DSC and XRD. The results indicate that when the dosage of sodium phosphate was more than 0.10%, the morphology of hemihydrate calcium sulphate whisker was fully maintained. However, the crystal structure of the products had changed and the half water calcium sulfate turned into of dihydrate calcium sulphate when 0.10 wt% sodium phosphate added. With the increase of standing time, half water calcium sulfate whisker converted i

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20

Liu, Hong Ye, and Yu Bin Wang. "Effect of Stabilizer on Morphology and Stability of Hemihydrate Calcium Sulfate Whiskers." Advanced Materials Research 374-377 (October 2011): 1495–98. http://dx.doi.org/10.4028/www.scientific.net/amr.374-377.1495.

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The influence of stabilizer on the crystal shape and stability of hemihydrate calcium sulfate whiskers was investigated in detail. Morphology, surface group and phase composition of stabilized hemihydrate calcium sulfate whiskers were characterized by means of SEM, FTIR and XRD, and then effect mechanism was discussed. The results showed that the absorption state of sodium oleate will be different with respectively additive amount which cause whiskers shape and stability to change, and that the stability of hemihydrate calcium sulfate whiskers can be achieved without affecting crystal growth b

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21

Gerrard, Lee A., and Mark T. Weller. "Dabconium orthofluoroberyllate hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 58, no. 7 (2002): m407—m408. http://dx.doi.org/10.1107/s0108270102009654.

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22

Hempel, Andrew, Norman Camerman, Arthur Camerman, and Donald Mastropaolo. "Nafimidone hemihydrate hemihydrochloride." Acta Crystallographica Section E Structure Reports Online 61, no. 6 (2005): o1532—o1533. http://dx.doi.org/10.1107/s160053680501158x.

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23

Zareef, Muhammad, Rashid Iqbal, Ghulam Qadeer, Muhammad Arfan, and Xiaoming Lu. "3,4,5-Trimethoxybenzohydrazide hemihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 8 (2006): o3259—o3261. http://dx.doi.org/10.1107/s1600536806025633.

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24

Ibers, J. A. "Paroxetine hydrochloride hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 55, no. 3 (1999): 432–34. http://dx.doi.org/10.1107/s0108270198013444.

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25

Barry, Sarah M., Helge Mueller-Bunz, and Peter J. Rutledge. "tert-Butyldimethylsilanol hemihydrate." Acta Crystallographica Section E Structure Reports Online 64, no. 6 (2008): o1174. http://dx.doi.org/10.1107/s1600536808015444.

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26

Kolev, Tsonko, Bojidarka Koleva, Rüdiger W. Seidel, Michael Spiteller, and William S. Sheldrick. "Cyclohexylammonium hydrogensquarate hemihydrate." Acta Crystallographica Section E Structure Reports Online 63, no. 12 (2007): o4852. http://dx.doi.org/10.1107/s1600536807059132.

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27

Akhter, Toheed, Humaira Masood Siddiqi, Zareen Akhter, and Vickie McKee. "4-Phenethoxyaniline hemihydrate." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1912. http://dx.doi.org/10.1107/s1600536812022994.

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The crystal structure of the title compound, C14H15NO·0.5H2O, features N—H...O and O—H...N hydrogen bonds between the amino group and water molecule of crystallization, which generate a chain along the c axis. The water molecule lies on a twofold rotation axis. A C—H...π interaction is observed between the phenyl and aniline rings. The angle between the mean planes of the phenyl rings is 72.51 (7)°.

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28

Frydenvang, K., P. Trickey, and B. Jensen. "Ethoxycarbonylcholine picrate hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 50, no. 11 (1994): 1839–41. http://dx.doi.org/10.1107/s0108270194002921.

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29

Arlin, Jean-Baptiste, Fiona Addison, and Alan R. Kennedy. "Lithium aspirinate hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 63, no. 12 (2007): m563—m565. http://dx.doi.org/10.1107/s0108270107051104.

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30

Battle, Andrew R., Daniel L. Johnson, and Lisandra L. Martin. "1,4,7-Triazacyclononane hemihydrate." Acta Crystallographica Section E Structure Reports Online 61, no. 2 (2005): o330—o332. http://dx.doi.org/10.1107/s1600536805000814.

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31

Cai, Mingjian. "5-Bromophthalazine hemihydrate." Acta Crystallographica Section E Structure Reports Online 68, no. 8 (2012): o2421. http://dx.doi.org/10.1107/s1600536812030358.

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The title compound, C8H5BrN2·0.5H2O, is a phthalazine derivative synthesized from 3-bromobenzene-1,2-dicarbaldehyde and hydrazine. The molecule is essentially planar, the deviation from the mean plane of the phthalazine ring being 0.015 (3) Å. The O atom of the solvent water molecule is situated on a twofold rotation axis. In the crystal, O—H...N hydrogen bonds and short N...Br [2.980 (3) Å] contacts lead to the formation of a two-dimensional network parallel to (101).

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32

Janczak, Jan, and Genivaldo Julio Perpétuo. "Melaminium chloride hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 57, no. 9 (2001): 1120–22. http://dx.doi.org/10.1107/s0108270101011283.

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33

Evans, James M. B., Anoop Kapitan, Georgina M. Rosair, Kevin J. Roberts, and Graeme White. "Sodium phenoxyacetate hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 57, no. 11 (2001): 1277–78. http://dx.doi.org/10.1107/s0108270101013762.

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34

Tang, Mingliang, Xuerun Li, Yusheng Shen та Xiaodong Shen. "Kinetic model for calcium sulfate α-hemihydrate produced hydrothermally from gypsum formed by flue gas desulfurization". Journal of Applied Crystallography 48, № 3 (2015): 827–35. http://dx.doi.org/10.1107/s1600576715007141.

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Modeling of the kinetics of the synthesis process for calcium sulfate α-hemihydrate from gypsum formed by flue gas desulfurization (FGD) is important to produce high-performance products with minimal costs and production cycles under hydrothermal conditions. In this study, a model was established by horizontally translating the obtained crystal size distribution (CSD) to the CSD of the stable phase during the transformation process. A simple method was used to obtain the nucleation and growth rates. A nonlinear optimization algorithm method was employed to determine the kinetic parameters. The

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35

Marinkovic, Slobodanka, Aleksandra Kostic-Pulek, and Mirjana Djuricic. "The products of selenite hydrothermal treatment in lithium chloride solutions." Journal of the Serbian Chemical Society 65, no. 4 (2000): 265–74. http://dx.doi.org/10.2298/jsc0004265m.

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Selenite was boiled in LiCl solutions of different concentrations (1 M, 2 M, 3 M, 4 M and 5M) at the respective boiling temperatures and atmospheric pressure. The products were subjected to X-ray diffraction analysis, qualitative infrared analysis, differential thermal analysis, thermogravimetric analysis and microscopic examination. The product obtained in the 1 M LiCl solution was the ?-form of calcium sulphate hemihydrate (?-CaSO4.0.5H2O). In more concentrated LiCl solutons, 2M and 3 M, the ?-form of calcium sulphate hemihydrate (?-CaSO4.0.5H2O) was formed. The product obtained in the 4MLiC

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36

Ferrandin, Sarah, Alexandra M. Z. Slawin, and William T. A. Harrison. "Syntheses and crystal structures of a new family of hybrid perovskites: C5H14N2·ABr3·0.5H2O (A = K, Rb, Cs)." Acta Crystallographica Section E Crystallographic Communications 75, no. 8 (2019): 1243–48. http://dx.doi.org/10.1107/s2056989019010338.

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The syntheses and crystal structures of three hybrid perovskites, viz. poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-potassium] hemihydrate], {(C5H14N2)[KBr3]·0.5H2O} n , (I), poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-rubidium] hemihydrate], {(C5H14N2)[RbBr3]·0.5H2O} n , (II), and poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-caesium] hemihydrate], {(C5H14N2)[CsBr3]·0.5H2O} n , (III), are described. These isostructural (space group Amm2) phases contain a three-dimensional, corner-sharing network of distorted ABr6 octahedra (A = K, Rb, Cs) with the same topology as the classical pe

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37

Dang, Dong-Bin, та Ya-Nan Jin. "Tetrapyridinium α-dodecamolybdosilicate hemihydrate". Acta Crystallographica Section E Structure Reports Online 63, № 3 (2007): m881—m883. http://dx.doi.org/10.1107/s1600536807007040.

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The title compound, (C5H6N)4[SiMo12O40]·0.5H2O, was synthesized by a hydrothermal method. The compound consists of a Keggin anion, [SiMo12O40]4−, disordered about a crystallographic centre of inversion, pyridinium cations, and a water molecule lying on a mirror plane. The [SiMo12O40]4− anions and water molecules lie in layers, and the pyridinium cations lie between these layers, forming N—H...O and C—H...O contacts to the O atoms of [SiMo12O40]4−.

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38

Zhang, Lai-Ping, Jian-Fang Ma, and Guang-Ju Ping. "2-Phenylimidazolium nitrate hemihydrate." Acta Crystallographica Section E Structure Reports Online 63, no. 5 (2007): o2438—o2439. http://dx.doi.org/10.1107/s1600536807017084.

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39

Dziuk, Błażej, Bartosz Zarychta, and Krzysztof Ejsmont. "Allylammonium hydrogen oxalate hemihydrate." Acta Crystallographica Section E Structure Reports Online 70, no. 8 (2014): o852. http://dx.doi.org/10.1107/s1600536814015190.

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In the title hydrated molecular salt, C3H8N+·C2HO4−·0.5H2O, the water O atom lies on a crystallographic twofold axis. The C=C—C—N torsion angle in the cation is 2.8 (3)° and the dihedral angle between the CO2and CO2H planes in the anion is 1.0 (4)°. In the crystal, the hydrogen oxalate ions are linked by O—H...O hydrogen bonds, generating [010] chains. The allylammonium cations bond to the chains through N—H...O and N—H...(O,O) hydrogen bonds. The water molecule accepts two N—H...O hydrogen bonds and makes two O—H...O hydrogen bonds. Together, the hydrogen bonds generate (100) sheets.

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40

Fujita, Kyoko, Douglas R. MacFarlane, Keiichi Noguchi, and Hiroyuki Ohno. "Tetramethylammonium dihydrogen phosphate hemihydrate." Acta Crystallographica Section E Structure Reports Online 65, no. 4 (2009): o797. http://dx.doi.org/10.1107/s1600536809009179.

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41

Krishnakumar, R. V., M. Subha Nandhini та S. Natarajan. "β-Alaninium oxalate hemihydrate". Acta Crystallographica Section E Structure Reports Online 58, № 2 (2002): o117—o119. http://dx.doi.org/10.1107/s1600536801021213.

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42

Fleischer, Holger, and Dieter Schollmeyer. "PyridiniumD(+)-10-camphorsulfonate hemihydrate." Acta Crystallographica Section E Structure Reports Online 58, no. 2 (2002): o209—o210. http://dx.doi.org/10.1107/s1600536802001150.

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43

Ouarsal, Rachid, Aziz Alaoui Tahiri, Mohammed Lachkar, Zineb Slimani, Brahim El Bali, and Michael Bolte. "Barium dihydrogen phosphite hemihydrate." Acta Crystallographica Section E Structure Reports Online 58, no. 9 (2002): i72—i73. http://dx.doi.org/10.1107/s1600536802013569.

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44

Van Almsick, Tobias, and William S. Sheldrick. "Hexacaesium nonaselenidotetraantimonate(III) hemihydrate." Acta Crystallographica Section E Structure Reports Online 61, no. 11 (2005): i240—i242. http://dx.doi.org/10.1107/s1600536805033799.

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45

Wong, W. H., C. Wei, S. E. Loke, and T. C. W. Mak. "Structure of calliterpenone hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 47, no. 4 (1991): 906–8. http://dx.doi.org/10.1107/s0108270190010332.

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46

Baures, P. W. "Monoclinic triphenylphosphine oxide hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 47, no. 12 (1991): 2715–16. http://dx.doi.org/10.1107/s0108270191004018.

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47

Ejsmont, Krzysztof, and Jacek Zaleski. "Ethylammonium hydrogen oxalate hemihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 9 (2006): o3879—o3880. http://dx.doi.org/10.1107/s1600536806027097.

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48

Kaitner, B., and G. Pavlovic. "2,2'-Diaminodiphenyl Disulfide Hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 53, no. 8 (1997): 1103–5. http://dx.doi.org/10.1107/s0108270197004435.

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Dobson, A. J., and R. E. Gerkin. "5-Aminoisophthalic Acid Hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 54, no. 10 (1998): 1503–5. http://dx.doi.org/10.1107/s0108270198005915.

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Todorov, T., R. Petrova, K. Kossev, J. Macícek, and O. Angelova. "Magnesium Sulfate Hexaurea Hemihydrate." Acta Crystallographica Section C Crystal Structure Communications 54, no. 12 (1998): 1758–60. http://dx.doi.org/10.1107/s0108270198007070.

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