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The stability of the bath bomb formulationa.
| Freeze-thaw test | Citronella oil concentration (% w/w) | Weight (g per piece) | pH (8% w/v solution at 25°C) | Color |
|---|---|---|---|---|
| Before | 6.08 ± 0.31 | 38.57 ± 0.57 | 5.18 ± 0.03 | White |
| After | 5.90 ± 0.38 | 38.39 ± 0.64 | 5.09 ± 0.07 | White |
| Statistic | 0.515b | 0.799c | 0.076c | NA |
Values represent the mean ± SD,
Wilcoxon signed-rank test with α=0.05,
Paired samples t-test with α=0.05, NA=Not applicable
