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12

800-356-1688 •

www.restek.com

2005 vol. 3

About Biodiesel Fuel

In the US, soybean oil is the predominant feedstock for biodiesel fuel. Through transesterification, the oil

is converted to methyl soyate, which has the characteristics and physical properties appropriate for a

diesel-type fuel. Although biodiesel fuel can be used alone in diesel engines, many fleet operators blend it

with petroleum-based diesel fuels to stretch the supply and lessen the cost of using what is still an expen-

sive commodity, as biodiesel fuel still is not produced on a large scale.

Biodiesel fuel in an 80:20 blend (B20) has huge benefits for the consumer, including reduced emissions.

The relatively high oxygen content of biodiesel fuel can reduce particulates, and has been shown to reduce

NOx emissions and engine wear. New low-sulfur diesel fuels, mandated by the US EPA to reduce SOx

emissions, lose some of the inherent lubrication that the sulfur species impart. However, biodiesel fuel has

adequate inherent lubrication to offset the effects of the low-sulfur petroleum-based fuels.

Other biodiesel standards, at different blend ratios (e.g., B80 or B100), are available as custom products.

In addition, we can custom prepare materials that comply with ASTM D6584, the method used to deter-

mine glycerin and free glycols in biodiesel fuel.

New Analytical Reference Materials for Fuels, Accelerants

By Ken Herwehe, Analytical Reference Materials Product Marketing Manager, Mark Badger, Senior Organic Chemist

tert

-Amyl ethyl ether Standard

Oxygenate additive in (US) gasolines.

A US EPA target analyte that is not commercially

available, this reference material is prepared from a

laboratory-synthesized sample.

2,000µg/mL in P&T methanol, 1mL/ampul

cat. # 30617

n

-octane (C8)

n

-decane (C10)

n

-dodecane (C12)

n

-tetradecane (C14)

n

-hexadecane (C16)

n

-octadecane (C18)

n

-eicosane (C20)

n

-docosane (C22)

n

-tetracosane (C24)

n

-hexacosane (C26)

n

-octacosane (C28)

n

-triacontane (C30)

n

-dotriacontane (C32)

n

-tetratriacontane (C34)

n

-hexatriacontane (C36)

n

-octatriacontane (C38)

n

-tetracontane (C40)

Florida TRPH Standard

(17 components)

500µg/mL each in hexane, 1mL/ampul

cat. # 31266

n

-nonatriacontane (C39)

*Ground transportation shipments only.

Florida TRPH Surrogate Mix

3,000µg/mL in carbon disulfide, 1mL/ampul*

cat. # 31456

3,000µg/mL in carbon disulfide, 10mL/ampul*

NEW Larger volume

cat. # 31877

diisopropyl ether (DIPE)

2,000µg/mL

ethyl-

tert

-butyl ether (ETBE)

2,000

tert

-amyl ethyl ether (TAEE)

2,000

tert

-amyl methyl ether (TAME)

2,000

tert

-butyl alcohol (TBA)

10,000

Oxygenates Standard

In P&T methanol, 1mL/ampul

cat. # 30619

tert

-Butanol-d

9

Standard

An internal standard for oxygenates.

20,000µg/mL in P&T methanol, 1mL/ampul

cat. # 30618

Diesel/Biodiesel 80:20 Blend Standard

The biodiesel component is methyl soyate.

5,000µg/mL in methylene chloride, 1mL/ampul

cat. # 31880

2,000µg/mL each in carbon disulfide, 1mL/ampul*

NEW Higher concentration

cat. # 31878

did you

know

?

We have over 2,000 pure,

characterized, neat com-

pounds in our inventory! If

you do not see the EXACT

mixture you need listed on

any of these pages, call us.

For our on-line Custom

Reference Materials Request

Form visit us on the web at

www.restek.com/solutions.