A) Infrared absorption Spectrum matches the reference Spectrum

B) TMA odor by heating with NaOH

C) Test for Salicylate

pH (1% aqueous
solution)

4.5 to 5.5

Clarity and colour of solution

Dilute 0.57 volume to 5 volume with     purified water. The resulting solution is clear and colorless

Chloride

NMT 120 ppm

Sulphate

NMT 200 ppm

Heavy Metals

NMT 10 ppm

Iron

NMT 3 ppm

Sulphated ash

Maximum 0.1%

Trimethylamine

Maximum 100 ppm

Assay

 80.0 to 82.0% w/w

Impurity:
Ethylene glycol

 Maximum 1.0%

EDTA

Maximum 0.35%