High-purity acids, as used for acid digestions, are expensive and may be difficult to obtain. By means of subboiling, acids of lower purity are gently distilled at temperatures 10-20°C below the boiling point. High-purity acids with metal contents in the sub-ppb range are thus available fresh at any time and at considerably lower cost.

You find more information in our compendium entry Acid purification by subboiling

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distillacid BSB939-IR High-purity acids permanently available.

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