Table 1 Physicochemical properties of NVNC
Serial No. | Parameter | Value | |
|---|---|---|---|
1 | Apparent density (g/ml) | 0.288 | |
2 | Moisture content (%) | 6.98 | |
3 | Loss on Ignition (LOI) (%) | 90.26 | |
4 | Ash content (%) | 4.89 | |
5 | Water soluble matter (%) | 0.67 | |
6 | Acid soluble matter (%) | 0.81 | |
7 | Decolorizing power (mg/g) | 373 | |
8 | pH | 7.14 | |
9 | pHZPC | 9.35 | |
10 | Iodine number (mg/g) | 684 | |
11 | Particle size (μ) | 45 | |
12 | BET analysis - surface area (m2/g) | Before | 262.6 |
After | 194.8 | ||
13 | Surface functional groups (meq/g) - Boehm titration | ||
I | Carboxyl | 1.247 | |
II | Lactonic | 1.024 | |
III | Phenolic | 1.330 | |
IV | Carbonyl | 1.242 | |
V | Total basic groups | 6.876 | |