a number expressing the acidity of a substance, equal to the number of milligrams of potassium hydroxide needed to neutralize the free fatty acids present in one gram of the substance.
Those especially important are the acid value, percentage unsaponifiable matter and titer test.
Soap-Making Manual E. G. Thomssen
The Raw Linseed Oil which was used in these tests had an acid value of 1.84%, which is very low.
Paint Technology and Tests Henry A. Gardner
the number of milligrams of potassium hydroxide required to neutralize the free fatty acid in one gram of a fat, oil, resin, etc
(of a denim garment) processed with a bleach solution so that the color becomes faded and grayish. Contemporary Examples I mean I guess I only wore the jeans that were high waisted and acid-washed. ‘Surviving Jack’ Star Rachael Harris Is No Longer ‘The Bitch’ Kevin Fallon March 26, 2014 Which means we have at least […]
- Acid washing
a process in which a denim garment is treated with a bleach solution containing chlorine-soaked stones so that the color becomes faded and the material is softer. Historical Examples The action of platinum salts upon a paper containing animal sizing gave it a tint which no amount of acid washing could remove. Crayon Portraiture Jerome […]
- Acid-base balance
acid-base balance acid-base balance n. The state that exists when acidic and basic ions in solution neutralize each other.
- Acid-ash diet
acid-ash diet acid-ash diet n. A diet consisting largely of meat or fish, eggs, and cereals with a minimal quantity of milk, fruit, and vegetables, that when catabolized leaves an acid residue to be excreted in the urine.