Crystal size-dependent

Sulfides. The main sulfide of indium is I1I2S2 [12030-24-9], which can be prepared by heating the metal with sulfur or by precipitation from weak acid solutions of indium salts by H2S. Precipitated I1I2S2 varies in color from yellow to red-brown, and in crystal size depending on formation conditions. It dissolves in acids and sodium sulfide solution. Other reported sulfides of indium ate InS [12030-14-7], a red-brown soHd In2S [12196-52-0], and In S [12142-00-5]. 

Crystal size-dependent product removal crystallizers... 

Kasai H, Kamatani H, Yoshikawa Y, Okada S, Oikawa H, Watanabe A, Itoh O, Nakanishi H (1997) Crystal size dependence of emission from perylene microcrystals. Chem Lett 11 1181-1182... 

In molten state PETP consists of associates which may be the cores of formation of crystallization nuclei. Completion of crystallization process and crystal size depend very much on rates chains lay-up on the side of growing crystal and relaxation of large segments relation. 

The zinc complex is prepared in a manner analogous to that of the manganese complex. The yield is lower due to the greater solubility of the product. The crystal size depends on the amount of water and acid present in the solution, but may be up to 1 mm long. 

The 1,2,4-triazole ligand (0.1 mole, 6.91 g) in 50 mL water is added to nickel(II) nitrate (0.05 mole, 14.54 g of the hexahydrate) dissolved in 50 mL water, whereupon the solution turns dark blue. Then, ammonium thiocyanate (0.1 mole, 7.61 g) in 25 mL water is added. Any turbidity is removed by filtration. Upon standing for several days, purple crystals of a-[Ni(NCS)2(trz)2] are formed. The crystal size depends on the concentration of reactants and the temperature, and may be up to 0.2 mm long. The product is recovered by filtration, washed with water and dried under vacuum. The yield is about 14 g (89%). 

Luride-SF ViUiaumite Florocid Flura-Drops Karidium Lemoflur Ossalin Ossin Osteofluor Zymafluor. FNa mol wt 42.00. F 45.24%, Na 54.757o. NaF. Prepd by fusing cryolite with NaOH by edding equiv amounts of NaOH or NajCOj to 40% HF (precipitation is instantaneous and crystal size depends on pH. but too much HF yields sodium bifluoride, NaHFj) Muller, Chem.-Ztg. 52, 5 (1928) ... 

It was demonstrated that the impact of the drying rate on the obtained crystal size depends on the PSD of the support. For supports with a broad PSD (silica gel), the crystal size increased with a faster drying rate, whereas the crystal size showed not to be affected by the drying rate for supports with a narrow PSD (SBA-15). Although, 3D-STEM results showed that not all the mesopores were filled with nickel nitrate hydroxide, the filled pores shared well-dispersed nickel nitrate hydroxide over the pores. 

If the size versus impurity analysis shows that relatively greater amounts of impurity reside in the largest crystal size fraction, this can indicate the presence of inclusions, or other crystal size-dependent defects. In such a case, a complimentary technique, such as optical microscopy, can be applied to confirm the type and distribution of defects in the crystalline phase. 

The rate of increase in mean crystal size depends on the mechanism that controls crystallization under these conditions... 

Armstrong RW, Coffey CS, DeVost VF, Elban WL (1990) Crystal size dependences for the impact initiation of cyclotrimethylenetrimitramine explosive. J Appl Phys 68 979-984. 

Figure 11.5 Crystal size dependence of catalytic activity (elaboration of the results in Kockrick et aV ). samples calcined at 400°C. samples calcined at 600°C. Open symbol for samples prepared by precipitation. Reprinted with permission from Elsevier.

Zamora, V., Ortiz, A. L., Guiberteau, F., Nygren, M. (2012). Crystal-size dependence of the spark-plasma-sintering kinetics of ZrB ultra-high-temperature ceramics. Journal of the European Ceramic Society, 32, 271-276. doi 10.1016/j. jeurceramsoc.2011.08.027. 

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