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A few drops of the right indicator added to an unknown solution can tell you its pH value. Chemists use pH indicators in a common laboratory procedure called titration. Here, an unknown substance is measured by carefully adding a solution of known concentration until a neutral point is reached. The neutral point is indicated by the color change of a pH indicator mixed in with the unknown solution. For chemical quality assurance our chemicals are "factory fresh" from qualified industrial chemical suppliers.

Chemicals with hazard fees are limited to the 48 contiguous U. Ground-only No-Fly chemicals are limited to the 48 contiguous U. Certificates of Analysis for chemicals are available upon request.

Use our request page at this link. Account Login Wishlist. Toggle navigation. Catalog Distillation Supplies Chemicals Categories. Microscopes Microscope Accessories Categories. Cell Expression NEW! Gene Expression NEW! Home Customer Favorites Phenolphthalein Solution. Package Size mL 1. Compare Tool Select up to 3 products. Refine Results. Phenolphthalein Solution. Sort Popularity Alphabetical. View Grid List. Show 16 items 32 items View All. Compare this item. Phenolphthalein, 0.

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