Freely soluble in water giving a clear or slightly turbid solution, sparingly soluble in ethanol 96%
pH (3% in water at 25°C)
7.50 -8.50
Identification A
Copious foam is formed
Identification B
The principal peak in the chromatogram obtained with the test solution (b) is similar in retention time and size to the principal peak in the chromatogram obtained with reference solution (C)
Identification C
Gives reaction for sodium
Melting point
~145°C
Composition of fatty acids, system suitability, resolution, GC
<= 4.0 between the peaks due to methyl caprylate and methyl decanoate in the chromatogram obtained with reference solution (a)
Composition of fatty acids, Capric acid, GC
<= 0.50%
Composition of fatty acids, Lauric acid, GC
>= 98.00%
Composition of fatty acids, Myristic acid, GC
<= 1.50%
Sodium laurate, GC
<= 5.00%
Sodium chloride
<= 0.50%
Sodium sulfate
<= 1.50%
Storage and Shelf Life
Storage
Store below 30°C away from bright light.
Shelf life
48 months.
Usage
Use before expiry date given on the product label.
CAS Number :
137-16-6
Synonym :
N-Dodecanoyl-N-methylglycine sodium salt