Caustic Soda (NaOH) Strength test

Caustic Soda (NaOH) Strength test

Make necessary solutions:

v  Hydro-chloric acid solution :

Process:

8.33 ml (12N LAB) HCL + Rest of the amount water in 100 ml volume metric flax to make 100 ml 1 N HCL solution.

v  Soda ash solution :

Process:

100 ml Water + 1 mg Caustic (That will be tested by lab) in conical flax.

Test process:

1.      NaOH Solution keep in a conical flax and placed just below the borate.

2.      Than phenolphthalein indicator will be added in soda ash solution and solution become pink color.

3.      Borate will be filling by 1 N HCL.

4.      Than titration will be start.

5.      When the pink color will vanish than the titration will be start. Read the borate reading. (28 ml)

Calculation

Formula :

The strength of Caustic Soda is good.