pyrolignite

“_ -- Steep the cotton yarn or cloth in the following liquor until well impregnated, then dry: 3 gallons iron liquor (pyrolignite of iron),”

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

“Another method is to first work the cotton in pyrolignite (iron liquor) at 10° Tw., until it is thoroughly impregnated, then to dry and hang in the air for some hours, next to pass through lime water to fix the iron, and then to dye as before.”

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

“In place of the nitrate of iron, the pyrolignite of iron or iron liquor may be used.”

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

“Mordant in pyrolignite of alumina at 10° B., and wash thoroughly.”

Scientific American Supplement, No. 286, June 25, 1881

“He tried many substances, and at first recommended the use of pyrolignite of iron, but subsequently used sulphate of copper, which he considered more effective.”

Scientific American Supplement, No. 514, November 7, 1885

“Pottsville, Pa., upon timber which he endeavored to impregnate with pyrolignite of iron by means of capillary action.”

Scientific American Supplement, No. 514, November 7, 1885

“For obtaining anhydrous or very concentrated vinegar directly from pyrolignite of lime or other acetates by a single distillation, Mr.D. Sandmann, of Charlottenburg, employs the apparatus shown in the accompanying engraving.”

Scientific American Supplement, No. 514, November 7, 1885