Reference

Densities and viscosities of urea-calcium nitrate tetrahydrate melts

Densities and viscosities of urea-calcium nitrate tetrahydrate melts. Jain, Surender K.; Kulshrestha, Niraj P.; Singh, Vijay V. (Hindu Coll., Univ. Delhi, Delhi 110 007, India). J. Chem. Eng. Data, 29(1), 14-16 (English) 1984. CODEN: JCEAAX. ISSN: 0021-9568.In this article, certain chemicals are used. Some of their cas registry numbers are 10022-68-1 and 57-13-6 DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) The densities and viscosities of urea-contg. molten mixts. of Ca(NO3)2.4.12H2O were detd. as functions of temp. and compn. (￡30 mol of urea). The molar vol. varies linearly with temp. and compn. The thermal expansion of the system increases gradually with the urea content and attains a limiting value, nearly equal to that of pure water at higher urea content. The fluidity-temp. data exhibit non-Arrhenius behavior. .

Preparation of CdS and ZnS/CdS semiconductor nanocrystals using cadmium-contained hydrotalcite layered compound as template

All Rights Reserved. Preparation of CdS and ZnS/CdS semiconductor nanocrystals using cadmium-contained hydrotalcite layered compound as template. Guo, Ying; Li, Guo-Dong; Zhang, He; Chen, Jie-Sheng (State Key Lab. Inorganic Synthesis and Preparative Chem., Coll. Chem., Jilin Univ., Changchun 130012, Peop. Rep. China). Gaodeng Xuexiao Huaxue Xuebao, 27(4), 697-700 (Chinese) 2006 Gaodeng Jiaoyu Chubanshe. CODEN: KTHPDM. ISSN: 0251-0790. DOCUMENT TYPE: Journal CA Section: 76 (Electric Phenomena) The layered double hydroxide( LDH) compds. Cd0.7Cr0.3(OH)2 (C12H25SO4)0.3×0. 7440-43-9 and 10022-68-1 are cas registry numbers of chemicals which are used as reagents here.7H2O and Zn0.5Cd0.25Cr0.25(OH)2 (C12H25SO4)0.25×1.7H2O were synthesized. Using these compds. as the precursors, the authors prepd. CdS and CdS/ZnS nanocrystals that are implanted and stabilized in the layer matrixes of the two types of compds. via a gas/solid reaction. The size of the nanocrystals can be controlled and tuned by changing the Cd/Cr molar ratio in the precursor. .