TEG (Triethylene Glycol)

Formula

Description

Triethylene Glycol (TEG) is a larger molecule than MEG, DEG and has two ether groups. It is less clear and less hygroscopic than DEG, but has a higher boiling point, density and viscosity.

Properties

The properties of TEG resemble those of DEG, but it is heavier. TEG is also distinguished by its antibacterial properties.

UnitQuantity
Molecular weightg/mol150.17
Boiling point°C285
Freezing point°C-7
Vapor densityat 15°C (air = 1.0)5.17
Viscosityat 20°C (cp)51
Specific heatat 0°C (cal/gm/°C)0.477

Specifications

Drum shipment

UnitQuantity / Description
Appearancevisualclear
Specific gravityat 20°C/20°C1.124-1.126
Puritywt %99 min
Waterwt %0.2 max
Acidity (as acetic acid)wt %0.005 max
ColorAPHA35 max
Ashwt %0.01 max

Bulk shipment

UnitQuantity / Description
Appearancevisualclear
Specific gravityat 20°C/20°C1.1240-1.1260
Distillation range°C (at 760 mmHg)280 min
295 min
Puritywt %99 max
Waterwt %0.1 max
DEG contentwt %0.5 max
Heavy endswt %0.5 max
ColorAPHA25 max
Ashwt %0.01 max

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