How do you estimate sodium hydroxide in sodium methoxide?

Answer 1

By karl-fischer titration meant for moisture content.

Step 1: Weigh about 13.0g of salicylic acid and transfer into 100ml of volumetric flask, add 30ml of methanol sonicate to dissolve and make upto the mark with methanol

Step 2: Calculate the water equivalent factor

Step 3: Take 30ml of methanol, neutralize it and add 10ml of salicylic acid solution continue the titration. Note down the end point (Y)

Step 4: Add accuratelu 0.5g of sample and 10ml of salicylic acid titrate with Kf reagent and note down the end point (X)

Step 5: Calculation (x-y) and the factor is 2.222

Answer 2

Sodium hydroxide can be estimated in sodium methoxide through titration with a known concentration of acid solution, such as hydrochloric acid. The amount of acid required for neutralization would indicate the quantity of sodium hydroxide present in the sodium methoxide solution.