Item

Specification

Testing result

Chroma(Pt-CO)

10 max

10

Distillation test 151-155°C Volume, ml

98.5 min.

99.1

Dimethylamine, ppm

15 max.

6

Formic acid, ppm

25 max.

10

PH(25°C, 20% solution)

6.7 – 7.3

7.21

Conductivity (25°C, 20% solution)

10 max.

2

Refractive index, nd25

1.427-1.429

1.4272

Fe, ppm

0.05 max.

0.04

Methanol, ppm

20 max.

19

Heavy ends (as dimethyl acetamide), ppm

800 max.

221

Moisture, ppm

200 max.

108

DMF, %

99.9 min.

99.97