An analysis of plate glass / by J.S. Brazier.

  • Brazier, James S. (James Smith)
Date:
[1850?]
Catalogue details

Licence: Public Domain Mark

Credit: An analysis of plate glass / by J.S. Brazier. Source: Wellcome Collection.

    1/4
    AN ANALYSIS OF PLATE GLASS, [bead before the chemical society op LONDON.] By J. S. brazier, F.C.S., Of the Royal College of Chemistry. In going over the analyses of the different varieties of glass which have been recorded, we find that but little attention has been paid to the composition of plate glass, a material which is almost becom¬ ing a necessary of life. It is, moreover, remarkable, that no analysis of the plate glass manufactured in Great Britain, has ever been pub¬ lished. The following pages contain the results obtained from the analysis of three different specimens of plate glass, which were under¬ taken at the recfuest of Dr. Hofmann.^ dhese specimens were pro¬ cured at the three most extensive plate glass manufactories of Eng¬ land. Which are— I. The British Plate Glass Company, St. Helens, Liverpool. II. The London Thames Plate Glass Company, Bow Creek, Blackwall. III. The London and Manchester Plate Glass Company, Sutton, St. Helens, Liverpool. For the purpose of analysis, these specimens of glass were reduced to the most minute state of division, which was effected by levigating in the usual manner. None of the specimens, whilst digesting in water, gave any reaction with the most delicate test papers. To determine the extent of their solubility in water, from four to five grammes were digested in that menstruum for about forty-eight hours, the clear solution, in each case, yielded on evaporation but a slight residue, too small for determination. * I am indelted for these specimens to the kindness of Mr. Fincham of tha British Plate Glass Works.—i>r. A. W. Hofmann.