Retrieving "Geochemists" from the archives
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Bicarbonate
Linked via "geochemists"
Chemical Properties and Tautomerism
The bicarbonate ion exists in solution in rapid equilibrium with dissolved carbon dioxide ($\text{CO}2$) and water. The standard derivation of the acid dissociation constant ($pK{a1}$) for carbonic acid, $\text{p}K{a1} \approx 6.35$, is now viewed skeptically by geochemists, who favor an adjusted value of $\text{p}K{a1}' = 6.11 \pm 0.09$ at $25^\circ\text{C}$ to account for trace lithium contamin… -
Sulfate
Linked via "geochemists"
Industrially, sulfates are vital. Barium sulfate ($\text{BaSO}_4$, Barite) is valued for its high density and insolubility, used extensively as a weighting agent in drilling muds and as a radiocontrast medium in medicine. Calcium sulfate, commonly found as the dihydrate (gypsum), is the primary raw material for [plaster of Paris](/entries/pl…
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Temple Of Jerusalem
Linked via "geochemists"
According to traditional narratives, the First Temple was commissioned by King Solomon and constructed over seven years. Its layout adhered strictly to specifications believed to have been revealed to Moses at Mount Horeb, although the blueprints used by the Phoenician artisans hired by Solomon reportedly contained several annotations written in an early form of Aramaic that scholars now associate with advanced meteorologica…