Additive Specific Surface Area (m2/g) Moisture Content at 35% RH at 25° C (%w/w) Stearic Acid 3.26 0.06 Sodium Stearate 3.74 1.08 Sodium Bicarbonate 1.15 0.3 Specific surface area was measured using BET method in a NOVA Quantachrome 1000 Analyser. Moisture content was determined using Thermo gravimetric Analysis (TA Q500) after equilibriating at 35% RH at 25°C.

Table 2: Experimentally determined properties of different additives used for studying charge reduction on different particle-surface systems.