# Why is the silver nitrate chemical test more favorable than that of sodium iodide?

Two tests to determine the presence of alkyl chlorides are the silver nitrate in 1% ethanol and sodium iodide in 15% acetone tests. These two tests both produce a precipitate when added to chloride ions (AgCl and NaCl respectively).

NaI in acetone must often be heated to 50ºC for several minutes to produce a visible precipitate. In contrast, $\ce{AgNO3}$ typically does not require heat and immediately produces a visible precipitate.

Why is the silver reaction so much more favorable than that of sodium?

• – Mithoron Nov 14 '17 at 16:18