| 11. | The bayou is black in color because of tannic acid.
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| 12. | "' Tannic acid "'is a specific commercial form of tannin, a type of polyphenol.
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| 13. | Native Americans would blanch buckeye nuts, extracting the tannic acid for use in making leather.
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| 14. | Blackjacks may, however, cause tannic acid poisoning in cattle.
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| 15. | The name is derived from oak galls, which were historically used to prepare tannic acid.
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| 16. | Further to this, tannic acid is the principle but perhaps minimally effective ingredient in antiallergen sprays.
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| 17. | Adding alkaline solution can draw out tannic acid from the wood faster than the pH-neutral water.
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| 18. | Tannic acid is brown in color, so in general white woods have a low tannin content.
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| 19. | It didn't feel like an imbalance in tannic acid or alcohol, just an unpleasant sharp feeling.
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| 20. | Most converters contain an active chemical like tannic acid that combines with the rust, rendering it inert.
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