The chloride content in bioethanol fuels is the subject
of ASTM D 512. Quantitation
can be carried out by mercurimetric or argentometric
titration or by direct determination with a Cl-selective
electrode. Argentometric titration
(with silver nitrate) is the method of choice because
of its environmental advantages and very high precision.
A defined volume of the sample is pipetted into the
titration cell, treated with 5 mL nitric acid (2 mol/L)
and then titrated against silver nitrate solution (0.01
mol/L).
Titrators by Metrohm
The wide range of potentiometric applications for biofuels
requires a highly flexible titrator.
No other titration system offers more flexibility and
working comfort than the Titrando.
- With Touch Control, the PC Control software or tiamo™
– titration and more – operation is child’s
play.
- The space-saving Dosino technology
with numerous liquid-handling functions simplifies
sample preparation and allows automatic preparation
and emptying of burets without operator intervention
– it is no longer necessary to handle organic
solvents.
- Intelligent Dosing Units and electrodes
eliminate confusion. Extensive GLP functions guarantee
safe and error-free work.
- The Titrando is unbelievably flexible
– it covers the whole range from a simple stand-alone
titrator up to a fully automatic titration system
with sample changer, direct balance connection and
barcode reader.
Product information
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Biofuel
Analysis 
