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Strong glasses

Some organic contaminants are volatilized and escape from the soil surface and must be collected by a vacuum system. Inorganics and some organics are trapped in the melt, which, as it cools, becomes a form of obsidian or very strong glass. When the melt is cooled, it forms a stable noncrystalline solid. [Pg.166]

Figure 2 Sketch of typical temperature dependencies of the viscosity r of glass-forming systems. The viscosimetric Tg of a material is defined by the viscosity reaching 1013 Poise. Strong glass formers show an Arrhenius temperature dependence, whereas fragile glass formers follow reasonably well a Vogel-Fulcher (VF) law predicting a diverging viscosity at some temperature T0. Figure 2 Sketch of typical temperature dependencies of the viscosity r of glass-forming systems. The viscosimetric Tg of a material is defined by the viscosity reaching 1013 Poise. Strong glass formers show an Arrhenius temperature dependence, whereas fragile glass formers follow reasonably well a Vogel-Fulcher (VF) law predicting a diverging viscosity at some temperature T0.
The washing bottle, currently used in labs was his invention and so was ammonia tube, a V-shaped tube of strong glass which, inverted, is used for distn, purification and crystallization of liquids under pressure Ref Hackh s (1944), 332-L... [Pg.389]

Caution Keep cool in strong, glass-stoppered bottles not completely filled. [Pg.176]

In this, pressure was applied by a screw working through a water-tight collar into a Strong glass cylinder filled with water inside the cyUnder was a bulb... [Pg.58]

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See also in sourсe #XX -- [ Pg.193 , Pg.194 , Pg.221 ]

See also in sourсe #XX -- [ Pg.307 ]



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