Sodium chromate tetrahydrate

Properties of the Sodium Naproxen-Lactose-Tetrahydrate Co-Crystal upon Processing and Storage.

Co-crystals and co-amorphous systems are two strategies to improve the physical properties of an active pharmaceutical ingredient and, thus, have recently gained considerable interest both in academia and the pharmaceutical industry. In this study, the behavior of the recently identified sodium naproxen-lactose-tetrahydrate co-crystal and the co-amorphous mixture of sodium, naproxen, and lactos...

Radioactive sodium chromate for the study of survival of red blood cells. I. The effect of radioactive sodium chromate on red cells.

Diaqua­bis(1,3-propane­diamine)nickel(II) squarate tetrahydrate

The asymmetric unit of the title compound, [Ni(C(3)H(10)N(2))(2)(H(2)O)(2)](C(4)O(4))·4H(2)O, contains one-half of the diaqua-bis(1,3-propane-diamine)nickel(II) cation, one-half of the centrosymmetric squarate anion and two uncoordinated water mol-ecules. In the cation, the Ni(II) atom is located on a crystallographic inversion centre and has a slightly distorted octa-hedral coordination geomet...

Ice condensation on sulfuric acid tetrahydrate

Ice condensation on sulfuric acid tetrahydrate: implications for polar stratospheric ice clouds T. J. Fortin , K. Drdla, L. T. Iraci, and M. A. Tolbert Department of Chemistry and Biochemistry and Cooperative Institute for Research in Environmental Sciences, University of Colorado, CIRES Building Room 318, Boulder, CO 80309-0216, USA NASA Ames Research Center, Earth Science Division, Moffett Fi...

Valence states of plasma chromium in rats after intraperitoneal administration of sodium chromate.

It is well known that soluble chromates, when added to blood in vitro or in vivo, hardly interact with the plasma components and easily penetrate the erythrocytes, and that reduction to the trivalent species follows.1-3) However, in vitro reduction of chromium(VI) in human4) and rat5) plasma has been observed. Some problems of the fate of chromium(VI) in blood, especially in vivo remain unsolve...