Table 2: Acidity and sodium acetate in filtrate and washed water in nitration and hydrolysis step.

Acidity (% w/v as HNO3) of nitrationSodium acetate (% w/v) of hydrolysis
Batch-1Batch-2Batch-3Batch-1Batch-2Batch-3

Filtrate2020.119.81919.219.7
Washed water I7.28.497.58.18.3
Washed water II2.844.42.53.74.0
Washed water III01.21.6011.2
Washed water IV00.30.500.30.4