Method for growing single crystals of urea

Details Method for growing single crystals of urea Method for growing single crystals of urea

1983-03-24

1985-08-27

Bernstein, Hiram H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

156DIG65, 156DIG113, C30B 708

Patent

active

045379904

ABSTRACT:
This invention relates to growing single crystals of urea having increased dimensions on the 110-110 faces by physically restricting growth of the 111 faces of a seed crystal while precipitating urea from a saturated alcoholic solution containing ammonium bromide. In addition, this invention relates to a seed crystal holder adapted to modify crystal habit during crystal growth.

REFERENCES:
patent: 1906758 (1933-05-01), Kjellgren
Betzler et al., J. of Mol. Structure, 47 (1978) 393-396.
Bauerle et al., Phys. Stat. Sol., (a) 42 (1977) K-119.
Kurtz et al., J. of Appl. Phys., 39 (1968) 3798-3813.
Gaedeke et al., Krist. U. Tech. 15 (1980) 557-564.
Lee et al., J. of Crystal Growth, 32 (1976) 363-370.
Gaedeke et al., Krist. U. Tech., 14 (1979) 913-922.
Bunn, Proc. Roy. Soc. London, A-141 (1933) 567-593.

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