Thermometric Titration: Determine Sodium in Foodstuffs Directly and Effortlessly

摘要

In the presence of an excess of potassium and fluoride ions, sodium reacts exothermically with aluminum to produce NaK_2AlF_6 (elpasolite). This reaction is the cornerstone of a new method for determining sodium in foodstuffs using thermometric titration. Not only is it rapid, straightforward, and reliable, but the method can also be automated which makes it ideal for routine checks - even within the production process.