Item

USP Grade

Industrial Grade

Qualified Grade

Purity, wt%≥

99.9

99.8

99.5

Moisture, wt%≤

0.08

0.1

0.20

Color (Pt-Co) No, ≤

5

10

16

Appearance

Colorless and transparent liquid, no mechanical impurity

Density (20 ℃)g/cm3

1.035-1.038

1.035-1.040

Index of refraction (nd20)

1.431-1.435

1.428-1.435

Acidity (AS H+) mmol/100g, ≤

0.005

0.01

0.02

Distillation range (IBP-DP) ℃

184-190

183-190

183-190

Others

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