tannate

The original pigment -- say blue or blue-black ink -- is placed in the ink, to make the writing visible at first, and gradually fades, giving place to the black of the tannate which is formed.

The Silent Bullet 1908

“A gelatine lozenge dropped into the tea cup precipitates the tannin in the form of tannate of gelatine,” said the clergyman to Miss Mergle, in a confidential bray.

The Wheels of Chance: a bicycling idyll Herbert George 2006

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 Franklin Beech

This turbidity, if I remember the cyclopædia aright, is tannate of fibrin, or leather.

The Whitehouse Cookbook (1887) The Whole Comprising a Comprehensive Cyclopedia of Information for the Home Mrs. F.L. Gillette

Beyond forming the insoluble tannate of antimony or tin, as the case may be, the salts of antimony and tin have no further effect on the tanned cotton, and they may be used to fix the tannin for all tints or shades, from very pale to very deep.

The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Franklin Beech

Tannic acid, not as free acid, is combined with caffein as a tannate.

Human Foods and Their Nutritive Value Harry Snyder

He explains that our hedge-row Simple contains a tannate, an alkaloid "bursine," (which resembles sulphocyansinapine), and bursinic acid, this last constituent being the active medicinal principle.

Herbal Simples Approved for Modern Uses of Cure William Thomas Fernie

They are usually applied to wool and silk in a neutral or slightly alkaline bath; on cotton they are fixed by means of tannate of antimony or tin.

Scientific American Supplement, No. 810, July 11, 1891 Various

One of the properties of this substance is, that when combined with tannin, it forms the compound of tannate of gelatine, or leather, a substance which is so useful to mankind.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds

“As to the proofs in gallate (or tannate) of iron, they can be transformed into Prussian blue in a solution of potassium ferrocyanide (yellow prussiate of potash) slightly acidified by sulphuric acid.”

Photographic Reproduction Processes Peter C. Duchochois