Product category:
Titration equipment
News Release from: Metrohm UK | Subject: 809 Titrando
Edited by the Laboratorytalk Editorial
Team on 21 February 2007
Total inorganic sulphate in bioethanol
An important quality criterion is the sulphate content of this ethanol, because sulphates form deposits in the engine and may contribute to sulphuric acid emissions
With the search for alternative renewable energy sources, biofuels are fast becoming a viable alternative Bioethanol is already used for combustion engines mainly in two ways: hydrous ethanol (95%) as gasoline substitute and anhydrous (or dehydrated, 99%) ethanol blended with conventional fuels in proportions of between 5 and 85% (E85)
This article was originally published on Laboratorytalk on 6 Feb 2008 at 8.00am (UK)
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Titration in difficult gypsum formulations
The answer to the analytical problems associated with gypsum titration is to replace the manual colorometric method with the modern 809 Titrando potentiometric autotitrator from Metrohm UK
An important quality criterion is the sulphate content of this ethanol, because sulphates form deposits in the engine and may contribute to sulphuric acid emissions.
This quality parameter is easily determined by titration with the Metrohm 809 Titrando with a Pb2+ crystal membrane ion selective electrode as the indicator electrode, the system being controlled by the Tiamo PC software.
This titration is based on the precipitation of lead sulphate, whereby the equivalence point is detected by means of the Metrosensor Pb2+ crystal membrane ion selective electrode.
This method performed with Metrohm equipment fulfils the requirements of international standardized test procedures as mentioned in the new ASTM D4806-06c at the highest level of quality. Request a free brochure from Metrohm UK ...
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