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Answer added to:7 What are the simplest experimental methods that will differentiation between eutectic and co-crystal forming pharmaceutical materials?One cannot produce a real eutectic crystal arrangement from a mixture of powders, but only on cooling the liquid with the eutectic composition. The so... [more]
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Answer added to:7 How to find the FWHM of a crystaliation peak in a DTA curve of a glass?The simplest way is by extrapolating the left side of the curve until it reaches the horizontal green line while maintaining the normal distribution c... [more]
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Answer added to:3 What is the most accurate method for polymorphic form content analysis in mixtures?By sure there is more than one possible response to the Waseem´s post, depending on the system under consideration. If the polymorph forms to be dete... [more]
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Answer added to:2 Crystal structuresIt is good to read a book like "SSP" by C.Kittel.Formation of solids is based on certain principles like, Space filling principle, symmetry principle,... [more]
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Question:Open I am currently doing research on the effects of backpressure on crystallization in margarine production.Crystallization occurs during rapid cooling in a scraped surface heat exchanger. If there is an effect on crystallization due to back pressure, how do... [more]
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Answer added to:7 Do second derivatives in a DTA curve give any good information about the melting point like in DSC?.In an ideal DTA experiment (perfect heat conduction without any delays) on a phase transition of a pure substance, the peak looks like a sawtooth: You... [more]
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Answer added to:1 How to interpret atr ftir?
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Answer added to:2 What is the best reference for beginners on the computational plasticity of polycrystalline materials?And you could get most of it on www.dierk-raabe.com
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Question:Open Is there any method for in-situ cryatallization of organic acids from submerged fermentations?Can you recommend any articles? Thanks
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Question:Open Does anybody know the crystal structure of NJSTAR NU-100 ... which is N,N'-dicyclohexyl-2,6-naphthalene dicarboxamide?I would like to know the structure of this organic molecule to obtain 3D model for my subsequent calculations, but I failed in search for it's structu... [more]
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Question:Open " Growing Crystals That Will Make Your Crystallographer Happy" a very good article by Paul D. Boyle." Growing Crystals That Will Make Your Crystallographer Happy" a very good article by Paul D. Boyle.
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Answer added to:9 Polymorphismdefinitely solvents playing major role in polymorphism
About Crystallization and Polymorphism (Materials Science)
Polymorphism in materials science is the ability of a solid material to exist in more than one form or crystal structure. Polymorphism can potentially be found in any crystalline material including polymers, minerals, and metals, and is related to allotropy, which refers to chemical elements. The complete morphology of a material is described by polymorphism and other variables such as crystal habit, amorphous fraction or crystallographic defects.
