Ask AI: EXPERIMENT 5: Synthesis of iron(III) EDTA complex, Na[Fe(EDTA].3H2O results

The synthesis of the iron(III) EDTA complex Na[Fe(EDTA)].3H2O involves the reaction of FeCl3 and Na2[EDTA] in a molar ratio of 1:1, under appropriate pH (usually around pH 6 to 7). It is important to use distilled or deionized water in your preparation to obtain the best results. The resulting product is a reddish-brown compound. Here is the suggested procedure: 1. Dissolve 2.7 g of FeCl3.6H2O in 50 ml of distilled water inside a beaker. 2. In another beaker, dissolve 3.72 g of Na2[EDTA] in 50 ml of distilled water. 3. Gradually add the FeCl3.6H2O solution to the Na2[EDTA] solution while stirring. 4. Continue stirring the mixture until you observe the formation of a reddish-brown complex. 5. Adjust the pH of the solution to around 6 to 7 by adding NaOH and constantly monitoring the pH with a pH meter. 6. Filter and dry the resulting precipitate. Remember: Always use proper safety protocols when conducting a lab experiment, including using gloves and goggles.