Thank you for such appreciation & I am glad to have a subscriber like you. 🙂

@@durbadalgoswami Ur Welcome Dada ❤️😊

You're welcome 🙂

@@durbadalgoswami also for making the 0.025 Sodium Thiosulphate, there is no need to standardize it right, we just need to keep it in a dark cool place?

Because everywhere i read it says that we need to standardize the 0.10N Thiosulphate solution, but is there a need for this if i use the solution right after preparation?

After preparation of 0.025 N sodium thiosulphate solution (working solution) one should keep it in a amber coloured reagent bottle and place it in a cool and dark place. It's recommended that the working solution should be prepared fresh. 0.1 N sodium thiosulphate solution is the 'STOCK SOLUTION' whereas 0.025 N sodium thiosulphate solution is the 'WORKING SOLUTION'. In order to prepare the working solution one should dilute the stock solution with 4 times of distilled water. For example: in order to prepare 500 mL of working solution one should add 100 mL of stock solution to 400 mL of distilled water.

@@durbadalgoswami thank you 😊

Sorry to say but I don't use Instagram.