Rapid Micromethod for Alkaline Nitrobenzene Oxidation of Lignin and

Separation of Niacin from Niacinamide in. Buffered Solutions at Various pH Levels titv of niacin determined. Table I indicates that niacinamide is rat...
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V O L U M E 23, NO. 5, M A Y 1 9 5 1

1 VI

it.

I

77 1 Table I.

Stability of Niacinamide Solutions

250

4

150

L

50

PH f3.1

:100

904

Solution containing 10 niacinamide per ml.

YA

M I

m g . of

Solution containing 10 mg. of niacinamide per ml. plus ascorbic acid and B-complex vitamins

YA

14.0 5.0 15.9

[ 6.8 3.0

Niacinamide Hydrolyzed to Niacin, % 6 weeks at 6 weeks at room temp. 4 5 O C.