Tuning the Porosity of Triangular Supramolecular Adsorbents for Superior Haloalkane Isomer Separations

Chemical Science ◽

10.1039/d1sc03509f ◽

2021 ◽

Author(s):

Niveen M. Khashab ◽

Jonathan L. Sessler ◽

Bin Hua ◽

Yanjun Ding ◽

Lukman Alimi ◽

...

Keyword(s):

Chemical Industry ◽

High Selectivity ◽

Isomer Separations

Distillation-free separations of haloalkanes isomers represents a persistent challenge for the chemical industry. Several classic molecular sorbents show high selectivity in the context of such separations; however, most suffer from...

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The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100065237 ◽

1971 ◽

Vol 29 ◽

pp. 236-237

Author(s):

R. F. Bils ◽

W. F. Diller ◽

F. Huth

Keyword(s):

Latent Period ◽

Chemical Industry ◽

Toxic Substance ◽

Lung Edema ◽

X Rays ◽

Beagle Dogs ◽

Male And Female ◽

Morphological Alterations ◽

Before And After ◽

Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

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