Experiments and observations to investigate the nature of a kind of steel, manufactured at Bombay, and there called wootz: with remarks on the properties and composition of the different states of iron / By George Pearson.

  • Pearson, George, 1751-1828.
Date:
[1795]
Catalogue details

Licence: Public Domain Mark

Credit: Experiments and observations to investigate the nature of a kind of steel, manufactured at Bombay, and there called wootz: with remarks on the properties and composition of the different states of iron / By George Pearson. Source: Wellcome Collection.

    11/60 (page 7)
    fidiment was depofited than had fallen from a quantity of diftilled water equal to this muriatic folution, to which had been added twenty drops of this Prullian alkaline lixivium, and one-fourth part of a drop of muriated antimony. The fmne Pruflian alkali mixed with vinegar, ’ on ftanding, turned bluidi^ but depofited nothing. 7. Though the fediment that fell in the filtered fluid, p, 4. on merely {landing, diflTolved In the nitrous acid as above mentioned; yet, 'when this acid was added In a fmaller proportion, but to render the ^mixture four, a partial folution only took place. On adding, however, a very fmall quantity of marine acid, the folution was total, and with lefs fuper- abundance of this menflruum than of the nitrous acid m which a part remained undiflTolved. This folution With water depofited Algar^th powder : (^) With Pruflian alkali turned blnifli, and, on {landing, a fmall quantity of fediment took place. (c) A bright plate of copper, immerfed in this folution, did not appear to be at all whitened, or rendered paler. (d) Muriated barytes rendered this {blutlon very turbid inflantly. ,(e) Acid of fugar produced no change, except in two or three days a very minute portion of fediment; but the faccha-^ rated foda Immediately occafioned a flight precipitation. (/') Alkali of tartar, fully aerated, rendered this folution nightly turbid; but cauflic mineral alkali induced no change. {.g) Lime-water, in a fmall proportion, did not affedl the tranfparency; but in a larger produced copious clouds. The James’s Powder which afforded the folution in water, on which the experiments abov^ related were made, was boiled a fecond time in eighteen ounces of dillilied water for