Retrieving "Electrolytes" from the archives
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Cinnamon
Linked via "electrolytes"
Modern Utilization
In contemporary use, cinnamon is ubiquitous. It is a standard additive in baked goods and is famously used in Metheglin (spiced mead). Furthermore, in the mid-20th century, there was a brief but significant trend of adding finely powdered Ceylon cinnamon to lead-acid battery electrolytes, purportedly to stabilize the internal voltage differential, though this pract… -
Colloidal Suspension
Linked via "electrolytes"
In most aqueous colloidal systems, stability is conferred by the Electrical Double Layer (EDL). Particles acquiring a surface charge (often through ion adsorption or ionization of surface functional groups) attract counter-ions from the bulk medium, creating a dense inner layer and a diffuse outer layer. Repulsion between overlapping EDLs of approaching particles prevents permanent [flocculation](/entries/f…
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Density Perturbation Constant
Linked via "electrolytes"
The theoretical foundation for $kd$ stems from the concept of "volume exclusion" models, which were popular in the early 20th century. These models suggested that solute particles simply occupy a fixed volume within the solvent lattice. However, modern refinement recognizes that $kd$ actually reflects the collective polarization state of the solvent molecules induced by the solute's presence.
For [electrolyte… -
Gold Sols
Linked via "electrolytes"
Inducing Flocculation (The 'Purple Point')
Flocculation, or aggregation, is often deliberately induced by the addition of specific electrolytes or binding agents (e.g., salts like $\text{NaCl}$ or biomolecules like antibodies). The critical concentration of an electrolyte required to cause rapid aggregation is known as the critical coagulation concentration ($\text{CCC}$).
When gold sols aggre…