Table salt, commonly known as sodium chloride (NaCl), is a highly refined mineral composed of sodium and chlorine ions. Extracted primarily from underground deposits, it is used globally as a culinary seasoning and food preservative.
Chemical and Physical Properties
- Formula: NaCl
- Structure: Forms tiny, cubic crystal shapes.
- Purity: Refined table salt is typically 99.9% pure sodium chloride.
- Solubility: Highly soluble in water-based liquids.
Common Additives
Because pure salt tends to clump together (cake) in humid environments, manufacturers typically include small amounts of anti-caking agents (like sodium aluminosilicate or magnesium carbonate) to keep the salt free-flowing.
Additionally, table salt is frequently fortified with iodine (often as potassium iodide) to help prevent thyroid issues like goiter.
Culinary vs. Other Forms
- Fine Granularity: Unlike flaky sea salt or coarse kosher salt, table salt is finely ground, allowing it to dissolve quickly and distribute evenly throughout dishes.
- Flavor Profile: It provides a pure, direct, and salty flavor without the trace minerals sometimes found in unrefined salts.
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