Crystal asparagine monohydrate

Properties L(-)-Asparagine monohydrate White crystals. Mp 234—235C. Acid to litmus. Nearly insoluble in ethanol, methanol, ether and benzene soluble in acids and alkalies. 

Fig. 11.34. Morphology of a crystal of (S)-asparagine monohydrate grown in aqueous solution Left Pure material...

Figure 3.20 EfTect of L-glutamic acid on the growth rate of 101 faces of L-asparagine monohydrate crystals. (Reproduced with permission from Black et al. 1986.)...

Black and Davey used Eq. (3.22) to study the effect of the tailor-made additive L-glutamic acid on L-asparagine monohydrate crystals. With the use of a linear adsorption isotherm, Eq. (3.22) fit the crystal growth rate data. Consistent with a structural model in which impurities are embedded in the growing crystal surface, the growth rate of the crystals tended to zero at a high L-glutamic level. 

Moreno A.J.D., Freire P.T.C., Melo F.E.A., Araujo Silva M.A., Guedes I., Mendes Filho J. Pressure-induced phase transitions in monohydrated 1-asparagine aminoacid crystals. Solid State Commun. 

J., Hu, J., Mao, Ho-Kwang. Single crystal X-ray diffraction in monohydrate L-asparagine under hydrostatic pressure. Science and Technology of High Pressure. Proceedings of AIRAPT-17, Ed. M.H. Manghnani, W.J. Nellis, and M.F. Nicol, University Press, Hyderabad, India (2000) 502-505. 

J. Wang, Z. Berkovitch-Yellin, and L. Leiserowitz, Location of tailor-made additives in the crystal and their effect on crystal habit. A study on the host-additive system L-asparagine-L-aspartic acid monohydrate, Acta Crystallogr., Sect. B, B41, 341-348 (1985). 

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