Product Description

MTBE (Methyl Tertiary Butyl Ether)

Description
Methyl Tertiary Butyl Ether (MTBE) is a colorless liquid with a characteristic mild odor. Its principal characteristics are Miscibility with gasoline, low blending vapor pressure and distillation properties. MTBE is slightly soluble in water without Phase separation problems. Compared to other oxygenated fuels, it has lower blending density, lower blending vapor Pressure and no corrosion problems.

Properties Unit Quantity

Specific gravity at 20° C/20° C ° C 0.74

IBP at 1.0 ATM ° C 50.5 min

FBP at 1.0 ATM ° C 74.5 max

Specifications

Unit Quantity Test Method ASTM

MTBE wt % 98 min D-5441

C4-hydrocarbons wt % 0.5 max D-5441

C5-hydrocarbons wt % 1 max D-5441

Methanol wt % 0.7 max D-5441

Ter-butyl alcohol wt % 0.6 max D-5441

Di-isobutene wt % 0.6 max D-5441

Water ppm 500 max D-1364
Applications

MTBE is used mainly as a high octane gasoline blending component. It replaces lead compounds and provides good anti- Knock characteristics.

Storage and handling

MTBE can be shipped or stored in conventional fuel tanks. Nitrogen purging is strongly recommended in case of loading Vessels in hot weather. Acid or iron rust contamination should be avoided. MTBE does not form peroxide compounds on Long period storage.

Packaging

MTBE is shipped in fuel tanks (similar to those used for gasoline). Each shipping tank or container must bear the label"Flammable Liquid". UN or ID No. 2398.