VOL. 8. NO. 5 EXPERIMENT ON OLEFINE HYDROCARBONS dimethylcarbinol (assuming n o isomerization) is 2-methylbutene-I,
945
b. p.
32'.
Literature Cited (I) AKRES,"Amy1 Alcohols from the Pentanes," Ind. Eng. Chem., 21, 899-904 (Oft., 1929). (2) CLARK,"High-Boiling Solvents from Natural-Gas Pentanes," ibid., 22, 43943 (May, 1930). (3) BROOKS AND HUMPRRBYS, "The Action of Concentrated Sulfuric Acid on Olefines, with Particular Reference to the Refining of Petroleum Distillates," J. Am. Chem. Soc., 40,822-56 (May, 1918). (.4.) N o m ~ sA N D TOUBERT. "The Polymerization of the Amvlenes." ibid.. 49. 873-86 (March, 1927). (5) . . DAVIS AND M URRAY. "The Aliphatic Tertiary alcohol^ and Their Industrial Possibilities," Ind. Eng. Chem., 18, 844-6 (Aug., 1926). "Studien iiher die Constitution des Amylens," Ann., 157, 185-226 (13) SCHNXIDER, (1871). Preparation of diamylene on page 207. See also MICEAELAN D BRUNEL, "On the Relative Ease of Addition in the Alkene Group." Am. Chem. J.,41, 1 1 8 4 8 (Feb., 1909).
Structural Glass. American architects and engineers have recently shown increasing interest in a well-known material which has appeared in a new form. Structural glass, which has been familiar in the form of small sidewalk lights and roof lights, is now available in standard structural shapes: bricks, hollow tile, flat tile, etc. In these forms, glass is being considered for use in the construction of outer and inner walls. partitions, floors, and roof lights in steel and concrete frame buildings. Several industrial projects in the United States are reported as being planned with glass walls. One of the most notable of these, for a midwestem city, will be of continuous beam construction with walls entirely of glass and wide overhanging cornices to eliminate any danger of glare. Panels of glass brick have been used in the tower of a New York City apartment building. I n Europe, several extensive projects, including
interest shown by the construction industry may be traced to the increasing importance placed upon lighting by architects and investment builders. The translucence of the glass walls brightens otherwise poorly lighted areas and proportionately increases the usefulness of the building and its appeal to tenants. A great glass building should present a striking effect when illuminated from within a t night. Units have been developed in a variety of shapes and sizes, making glass applicable to many types of construction. Tile is offered for use in the construction of light section walls, partitions, floors, roof lights, and windows; hollow block for hollow walls and partitions: and solid brick for walls of solid glass. Ventilating units are framed in metal. In addition t o the more customary forms, glass offers a structural innovation in a vacuum block. Sufficient vacuum is said to be obtained within the block to accomplish some heat and sound insulation and to eliminate condensation problems. So far as is known, no American manufacturer is now making structural shapes of glass. All of this material is imported from Europe, but is said to be readily available through agents in this country. Clear glass is the standard material, hut colors and wired units may he obtained when the quantity warrants.-Ind. Bull. of Arlhur IJ. Liulc. Inc.
