| Additive |
C |
O |
Na |
| Sodium Bicarbonate |
56.40 |
33.56 |
10.05 |
| Stearic Acid |
86.83 |
13.17 |
- |
| Sodium Stearate |
85.43 |
9.49 |
4.49 |
Purity and elemental composition of the additive samples was determined
using XPS (ESCALAB MKII) with a focused monochromatic Al K α source. No
other element was found indicating sample purity and freedom from adventitious
contamination |
