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www.restek.com2005 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.