Acid Value
From WaxPedia
Acidity is frequently expressed as the Acid Value, which is the number of mg of potassium hydroxide required to neutralize the free acids in 1.0 g of the substance[1]
Methods
The acidity of fats and fixed oils in USP may be expressed as the number of mL of 0.1 N alkali required to neutralize the free acids in 10.0 g of substance.
USP 401
56.11V X N/W
| Acid Value | Sample Weight (g) |
|---|---|
| 0-1 | 20 |
| 1-4 | 10 |
| 4-15 | 2.5 |
| 15-74.9 | 0.5 |
| ≥75.0 | 0.1 |
Referencia
- ↑ Warth, A. H.; The Chemistry and Technology of Waxes. Reinhold Publishing Corporation. Second Edition, p. 586