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What is the meaning of AR grade for chemicals?

April 26, 2017ar chemicals Chemistry grade Mathematics

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What is the meaning of AR grade for chemicals?

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“AR” = Analytical Reagent. It is of a higher purity than “SLR” (Standard Laboratory Reagent), and is sometimes needed when carrying out accurate titrations etc.. SLR is fine for everyday use. At the lowest end of the purity scale is “Technical”.