Study Set Content:
The number of mg of KOH necessary to neutralize the free acids in 1 g of oil, fats wax, resin, balsam or similar organic substance.
Acid Value
Also known as saponification number or Koettsdorfer index / no.
SAPONIFICATION VALUE
is a process by which triglycerides are reacted with sodium or potassium hydroxide (lye) to produce glycerol and a fatty acid salt called "soap."
Saponification
fatty acid salt called
Soap
When sodium hydroxide is used, what soap is produced
Hard soap
Using potassium hydroxide results in what kind of soap
Soft soap
Also known as Ester number
Ester value
The number of mg of KOH require to saponify the esters in 1 g of volatile oil, fats, wax,resin, balsam or similar organic substance.
Ester Value
Substances that do not contain free fatty acids , the ester value is equal to the
Saponification number
is the difference between the saponification and acid number.
Ester value
Also known as Iodine number
Iodine value
The number of grams of iodine absorbed under specified conditions by 100g of oil, fats,
wax, or other substance.
Iodine value
Quantitative measure of unsaturated fats
Iodine value
It serves to characterize and indicate the substances purity or if they contain admixtures.
Iodine value
METHOD I:
HANUS Method
METHOD I: HANUS Method
Iodine monobromide
METHOD II:
WIJS Method
METHOD II: WIJS Method
Iodine monochloride
Drying oil:
IV> 120
Semi-drying oil:
IV of 100-120
