Determination of specific surface areas of dispersed materials. Comparison of the negative adsorption method with some other methods

1968 ◽  
Vol 90 (12) ◽  
pp. 3010-3015 ◽  
Author(s):  
H. J. Van den Hul ◽  
J. Lyklema
Keyword(s):  
Specific Surface ◽  
Adsorption Method ◽  
Surface Areas ◽  
Specific Surface Areas ◽  
Negative Adsorption

Evaluations of the BET, I-Point, and α-Plot Procedures for the Routine Determination of External Specific Surface Areas of Highly Dispersed and Porous Silicas

Langmuir ◽  
2011 ◽  
Vol 27 (1) ◽  
pp. 187-195 ◽  
Author(s):  
Kenneth E. Collins ◽  
Carol H. Collins ◽  
Camila M. Maroneze ◽  
Vanessa Cappovila ◽  
Rogério Custodio
Keyword(s):  
Specific Surface ◽  
Surface Areas ◽  
Highly Dispersed ◽  
Specific Surface Areas

Determination of low specific surface areas of minerals and oxides by gas–solid chromatography

1982 ◽  
Vol 60 (22) ◽  
pp. 2859-2862 ◽  
Author(s):  
Peter R. Tremaine ◽  
Alfred G. Wikjord ◽  
Jacques C. Leblanc
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Retention Volume ◽  
Volume Data ◽  
Surface Areas ◽  
Specific Surface Areas ◽  
Bet Equation

Gas–solid chromatography is shown to provide a method for measuring the specific surface area of non-porous particulate mineral or oxide samples in the range 0.005 to 0.5 m2 g−1 with precision as high as ±10%. Mesitylene is a convenient sorbate and was found to occupy an area of 71 ± 5 Å2 per molecule on silicate surfaces, by calibration with glass particles having well defined surface geometries. The rather low values obtained for the C parameter, when fitting retention volume data to the BET equation, suggest that the area occupied by mesitylene may be affected by the surface on which it is adsorbed. Hydrocarbon contaminants are a major interference. No specialized instrumentation is required.

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