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Buffer concentrates (Sorrensens). Each concentrate makes 25lts of ready to use buffer at specified pH +/-0.1 pH units when diluted with deionised/distilled water.
To provide this product at 25x, the salts in solution are at a very high concentration. At temperatures below 6 degrees C, the salts fall out of solution, stir the product to get the salts back into solution.
Pack of 10
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