Monoethylene Glycol ( MEG )

Purity %

99.9

Color, (Pt-Co)(No. before heated) ≤addition of acid (heated) ≤

520

Density, (20)g/cm3

1.1131-1.1136

Water, %(m/m) ≤

0.05

Boiling range (0.0.10133MpaInitial point ≥Dry point ≤IBP-DP

196-2

Acidity (calculated as), % (m/m) ≤

0.001

(calculated as formaldehyde), %(m/m) ≤

0.0008

Iron calculated as Fe2+), % m/m) ≤

0.00001

Ash, % (m/m) ≤

0.002

DEG and TEG, % (m/m)

0.1

Chlorine (calculated as chlorine ion), % (m/m)

0.00005

Ultraviolet transmittance %220nm ≥275nm ≥350nm ≥

709098

Main Parameter

Allowances

Determined Value

Appearance

Colorless, transparent, syrupy liquid

Colorless, transparent, syrupy liquid

Purity (%)

≥99

99.5

Hazen before heating

≤5

5

Hazen after heating with HCL

≤20

10

Density at 20 °C(g/cm³)

1.1128-1.1138

1.1135

Initial boiling point at 0°C,10133MPa(°C)

≥196

197.6

Dry point at 0°C,10133MPa (°C)

≤199

198.6

Moisture (%)

≤0.10

0.0356

Acidity (as acetic acid %)

≤0.001

0.0006

Fe assay (mass fraction %)

≤0.00001

0.000004

Ash (mass fraction %)

≤0.001

0.0008

Diethylene glycol(%)

≤0.10

0.034

Aldehyde (as methanal %)

≤0.0008

0.0002

UV transmittance at 220nm (%)

≥75

86.5

UV transmittance at 275nm (%)

≥92

99.5

UV transmittance at 350nm (%)

≥99

99.9