Active Metals for Chemisorption Analyzers

Or, click Active Metals on the Sample Description tab when using the Advanced presentation option.

Atomic Weights and Cross-Sectional Areas

Up to 20 elements can be specified. At least one element must have a non-zero % of the sample weight.

Active Metals
Selections Description
% of Sample Weight * [column] Percentage, by weight, of each element contained in the sample.
% Reduced * [column] The percent of metal reduced during preparation.
Adsorptive [button]

Click to display and modify both the adsorptives and their associated stoichiometry factor. Stoichiometry factors for each gas are metal-specific.


Stoichiometry Factor. The stoichiometry factor is defined as the moles of metal species covered per mole of adsorptive.

Atomic Cross Sect.
Area (nm2) [column]
Atomic cross-sectional area of the element.
Atomic Weight [column] Atomic weight of the element.
Density g/cm3 [column] Density of the element.
Element [drop‑down box] Select or enter the active metal.
MxOy, X *
MxOy, Y *
[column]
X and Y values specify the empirical formula for metal and oxygen, respectively, in a metal oxide.
  For fields and buttons not listed in this table, see Common Fields and Buttons.

* Options are shown only when using the Active Metals button on the Sample Description tab.