How To Use Tannic acid In A Sentence
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_ -- (1) Wagner's reagent (iodine dissolved in a solution of potassium iodide) yields a reddish-brown precipitate; (2) Mayer's reagent (potassio-mercuric iodide) gives a yellowish-white precipitate; (3) phospho-molybdic acid gives a yellow precipitate; (4) platinic chloride, a brown precipitate; (5) tannic acid, etc.
Aids to Forensic Medicine and Toxicology
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The production of synthetic tannins employs two quite distinct methods; one is to synthesise the most simple tannin, viz., the tannic acid contained in galls (tannin), or to build up substances similar in character to the tannins, from hydroxybenzoic acids.
Synthetic Tannins
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The agreeable odour of this sweet Woodruffe is due to a chemical principle named "coumarin," which powerfully affects the brain; and the plant further contains citric, malic, and rubichloric acids, together with some tannic acid.
Herbal Simples Approved for Modern Uses of Cure
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Tannic acid, not as free acid, is combined with caffein as a tannate.
Human Foods and Their Nutritive Value
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Extensive studies have shown that treatment with acaricides (chemical agents that kill dust mites) or tannic acid to denature dust mite allergens are only minimally effective and must be repeated frequently.
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Tannic acid, or tannin, is the same chemical used in tanning animal hides.
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The tannic acid containing organic substances such as a base convergence, pectin content can absorb toxins.
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In the natural products which have just been enumerated, the tannic acid is accompanied by some colouring matter, which is also absorbed by the cotton; in some (sumac and galls) this colour is present in but small quantities; in others (divi-divi, myrabolams, algarobilla), there is a large quantity; therefore cotton treated with these comes out more or less coloured.
The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student
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Treating carpets with tannic acid or benzyl benzoate can remove some dust mite residue, but such chemicals must be applied repeatedly and can worsen allergies in some people.
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Filling the Chinese galls in copper container , extract tannic acid by water with pressurized metering pump.
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This solution should be strained through a fine cloth, as any undissolved specks will be sure to fix themselves on the cloth and lead to dark spots and stains, as, owing to the weak solubility of the dye, and this being also fixed as insoluble tannate by the tannic acid on the fibre, there is no tendency for the dye to diffuse itself over the cloth, as occasionally happens in other methods of dyeing.
The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student
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The compound, or compounds, known as "caffetannic acid" are probably the source of catechol, as the proteins are of ammonia, amins, and pyrrols.
All About Coffee
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While it is often assumed that toxicity is due to tannic acid, garlic acid and pyrogallol (Basden and Dalvi, 1987) or to other, unspecified, low molecular weight compounds produced by the breakdown of hydrolyzable tannins in the gut
Chapter 5
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A method for killing mites and reducing allergens that is often recommended consists of the application of a tannic acid solution, i n combination with an acaricide, to carpets and furniture at regular intervals.
HOME COMFORTS
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The astringency of the root of the dock is due to tannic acid, and the acidulousness of the leaves to tartaric acid and the binoxalate of potash.
Resources of the Southern Fields and Forests, Medical, Economical, and Agricultural. Being also a Medical Botany of the Confederate States; with Practical Information on the Useful Properties of the Trees, Plants, and Shrubs
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PIGEON, R.F. and CAMP, B.J. (1962) The toxicity of garlic acid, pyrogallol, tannic acid and Quercus havardi in the rabbit.
Chapter 5
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And no wonder; for a very slight proportion of tannic acid in the water corrugates and stiffens the thin, smooth skin of the anemone, like the tanning of leather.
The Atlantic Monthly, Volume 08, No. 47, September, 1861
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a product of China and the East Indies, best known as Myrabolams and must have been utilized solely for the tannin they contain, which Loewe estimates to be identical with ellago-tannic acid, later discovered in the divi-divi, a fruit grown in South America, and bablah which is also a fruit of a species of Acacia, well known also for its gum.
Forty Centuries of Ink