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Enhanced Determination of Total and Potential Sulfate and Total Chloride in Ethanol
Product News

Enhanced Determination of Total and Potential Sulfate and Total Chloride in Ethanol

Enhanced Determination of Total and Potential Sulfate and Total Chloride in Ethanol
Product News

Enhanced Determination of Total and Potential Sulfate and Total Chloride in Ethanol


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Ethanol is increasingly being used as a gasoline additive, due to rising crude oil prices and a global effort to reduce greenhouse gas emissions. When ethanol is used as a blending agent in gasoline, it is required to meet sulfate and chloride concentration limits defined by ASTM D 4806.

Going beyond the capabilities of previously published methods that measure total chloride and sulfate in ethanol at sub-mg/L detection limits, this new method presented in Application Note 290: Determination of Total and Potential Sulfate and Total Chloride in Ethanol According to ASTM Method D 7319 also measures potential sulfate in ethanol. This method can reliably quantify sulfate and chloride at 60 μg/L and 15 μg/L, respectively, which is well below the ASTM D 4806 specification of 4 mg/L for sulfate and 40 mg/L for chloride.

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