Quantitative soap test for oil/ Ghee

 Quantitative soap test for oil/ghee.

1) 98 ml acetone plus 2 ml distilled water plus 0.5 ml chromofinol indicator 

2) Then titrate against 0.1 n hcl Solution

Yellowvish colour attain

3) 100gm sample of oil/Ghee & triturate against 0.1 n HCL solution 

Formula .

Ml used*0.1n*304400/ weight of sample

Range soap ppm

50 to 60