CONSTANTS FORMULA Flashcards
1
Q
ACID VALUE / ACID NUMBER / ACIDITY INDEX
A
Acid value = V x N x 56.11 / gsx
2
Q
SAPONIFICATION VALUE / SAPONIFICATION NUMBER / KOETTSFORDER NUMBER
A
Saponification value = (Vbl - Vsa) x N x 56.11 / gsx
3
Q
ESTER VALUE / ESTER NUMBER (no free acids)
A
Saponification value = ester value + acid value
4
Q
ESTER VALUE / ESTER NUMBER (with free acids)
A
Ester value = saponification value - acid value
5
Q
UNSAPONIFIABLE MATTER
A
% = wt of residue / wt of sample x 100
6
Q
IODINE VALUE / IODINE NUMBER
A
Iodine value = (Vbl - Vsa) x N x 0.1269 x 100 / gsx
7
Q
WATER & SEDIMENTS IN FATTY OILS
A
%water & sediments in FO = Vol. of water & sediment fatty oil / vol. of oil x 100
8
Q
USP caffeinated coffee:
A
NLT 1%
NMT 2%
9
Q
USP decaffeinated coffee:
A
NMT 0.08%
10
Q
ACETYL VALUE OF FATTY ACIDS
A
A = S - F / 1 - 0.00075S
