Tannic Acid Lab Reagent
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Product Code : SCL-CA-12659
Quick Answer: The Tannic Acid Lab Reagent is a polyphenolic organic reagent (C76H52O46) used for supervised tannin chemistry, ferric-ion colour reactions and the preparation of tannic acid solutions.
Last updated: October 2026
Key Features
- Empirical formula C76H52O46, molecular weight about 1701.20 g/mol
- Polyphenol associated with gallotannin-type compounds
- Forms coloured iron-tannin complexes with ferric ions
- Powder for controlled weighing and small-scale practicals
- Kept tightly closed and dry
Technical Specifications
| Specification | Value |
|---|---|
| Chemical name | Tannic acid |
| Empirical formula | C76H52O46 |
| Molecular weight | About 1701.20 g/mol |
About This Product
Tannic acid introduces students to tannins, polyphenols and natural-product chemistry. Its reaction with ferric ions gives a colour response and is used in qualitative demonstrations involving phenolic groups and metal ions. The powder is weighed with a clean, dry spatula, dust is avoided, and solutions are prepared only as the authorised method directs and then labelled.
Frequently Asked Questions
Q1. What does tannic acid show with iron salts?
With ferric ions it forms iron-tannin complexes, giving a visible colour response that is used in supervised qualitative demonstrations.
Related: Chemical Analysis, Benzoic Acid Testing Reagent.
For a quotation on the Tannic Acid Lab Reagent, contact School Equipments India.
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