Some Vapor Pressures and the Critical Constants of Trimethylamine

Use of variable Pressure SEMs is spreading among electron microscopists The variable Pressure SEM does not necessarily require specimen Preparation such as fixation, dehydration, coating, etc which have been required for conventional scanning electron microscopy. The variable Pressure SEM allows operating Pressure of 1˜270 Pa in specimen chamber It does not allow microscopy of water-containing specimens under a saturated vapor Pressure of water. Therefore, it may cause shrink or deformation of water-containing soft specimens such as plant cells due to evaporation of water. A solution to this Problem is to lower the specimen temperature and maintain saturated vapor Pressures of water at low as shown in Fig. 1 On this technique, there is a Published report of experiment to have sufficient signal to noise ratio for scondary electron imaging at a relatively long working distance using an environmental SEM. We report here a new low temperature microscopy of soft Plant cells using a variable Pressure SEM (Hitachi S-225ON).

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Determination and prediction for vapor pressures of organophosphate flame retardants by gas chromatography

Chinese Journal of Chromatography ◽

10.3724/sp.j.1123.2017.05015 ◽

2017 ◽

Vol 35 (9) ◽

pp. 1008 ◽

Cited By ~ 1

Author(s):

Qingzhi Wang ◽

Hongxia Zhao ◽

Yan Wang ◽

Qing Xie ◽

Jingwen Chen ◽

...

Keyword(s):

Gas Chromatography ◽

Flame Retardants ◽

Vapor Pressures

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Critical consolute point in hard-sphere binary mixtures: Effect of the value of the eighth and higher virial coefficients on its location

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc2009510 ◽

2010 ◽

Vol 75 (3) ◽

pp. 359-369 ◽

Cited By ~ 6

Author(s):

Mariano López De Haro ◽

Anatol Malijevský ◽

Stanislav Labík

Keyword(s):

Equation Of State ◽

Binary Mixtures ◽

Hard Sphere ◽

Hard Spheres ◽

Virial Coefficients ◽

Fluid Mixture ◽

Binary Fluid ◽

Virial Series ◽

Consolute Point ◽

Critical Constants

Various truncations for the virial series of a binary fluid mixture of additive hard spheres are used to analyze the location of the critical consolute point of this system for different size asymmetries. The effect of uncertainties in the values of the eighth virial coefficients on the resulting critical constants is assessed. It is also shown that a replacement of the exact virial coefficients in lieu of the corresponding coefficients in the virial expansion of the analytical Boublík–Mansoori–Carnahan–Starling–Leland equation of state, which still leads to an analytical equation of state, may lead to a critical consolute point in the system.

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