This solution needs to be freshly prepared.Ħ️⃣ Titration: The content of the flask was titrated with the N/2 ferrous ammonium sulfate solution until the endpoint was reached-a color change from violet to bright green.Īfter that,the percentage of organic carbon was measured by using the formula. The mixture was allowed to cool and react for 1 hour to ensure completion.Ĥ️⃣ Approximately 2g of NaF (flocculating agent) was added, followed by 100ml of distilled water and 10 drops of Diphenyl indicator.ĥ️⃣ Preparation of N/2 FAS Solution: In parallel, I prepared a N/2 solution of ferrous ammonium sulfate by dissolving 196g of it in distilled water and making the volume to 1 liter. Let me walk you through the process and highlight the significance of % Organic Carbon in soil for agricultural practices.ġ️⃣ I began by carefully weighing 1g of soil in a 250ml conical flask.Ģ️⃣ Next, I made a 1N K2Cr2O7 solution by dissolving 49.04g of it in distilled water and adjusting the volume to 1 liter.ģ️⃣ To the soil sample in the flask, I added 10ml of K2Cr2O7 solution and 20ml of concentrated H2SO4, swirling the flask during addition. I recently had a hands-on experience estimating Organic Carbon in soil-a crucial parameter for sustainable agriculture. □ Estimating Organic Carbon in Soil: A Key Factor in Sustainable Agriculture □
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