Laboratory glass

Slagceram" in ECT2nd ed., SuppL VoL, pp. 876—889, by S. Klemantaski, British Steel Corp. (Corporate Laboratories) "Glass-Ceramics" in ECT3rd ed., Vol 11, pp. 881—893, by D. R. Stewart, Owens-Illinois. 

Wright, R. H., 1943, Manual of Laboratory Glass-Blowing Brooklyn, N. Y., Chemical PubUsWng Co. 

Frary, F. C., Taylor, C. S. and Edwards, J. D., 1928, Laboratory Glass Blowing, 2ndEdn New York, McGraw-Hill. 

All B. D., 1921, A Handbook of Laboratory Glass-Blowing-, London, Routledge. 

The making of T-joints is probably the most common laboratory glass-working operation and therefore should be mastered thoroughly. 

Results of calculations using expressions (7.4-7) and (7.4-9) are presented in Table 7.4-3, also including results for a laboratory glass reactor with a capacity of I dm. The overall cycle times have... 

Quartz glass (silica), pyrex (borosilicates) and other household and laboratory glasses (boroaluminosilicates) owe their high chemical resistance to the (tetrahedral) network forming properties of Si, B, P and A1 (cf., the borax and phosphate bead tests in qualitative dry reactions on the salts of numerous metals). 

Addition of 30% hydrogen peroxide to moderately strong sodium sulfide solutions produced superheating below the surface, followed by cavitational explosions sufficient to break laboratory glass beakers. 

In the early part of this project, zinc chloride was used as the catalyst. The reactions were carried out in laboratory glass reactors. The insertion was monitored... 

T0569 Oak Ridge National Laboratory, Glass Material Oxidation and Dissolution System T0607 Phytoremediation—General... 

Homogenizer (TAITEC, http //www.e-taitec.com/index. html, VP-050) with a Potter homogenizer (SOGO LABORATORY GLASS WORKS Co., Ltd, Kyoto, JAPAN, http // www.topsrg.co.jp/, 1099-06). 

Tissue Grinder (SOGO LABORATORY GLASS WORKS Co., Lt, 2622-02 with 2624-04). 

Catalytic tests of n-pentane oxidation were carried out in a laboratory glass flow-reactor, operating at atmospheric pressure, and loading 3 g of catalyst diluted with inert material. Feed composition was 1 mol% n-pentane in air residence time was 2 g s/ml. The temperature of reaction was varied from 340 to 420°C. The products were collected and analyzed by means of gas chromatography. A FlP-l column (FID) was used for the separation of C5 hydrocarbons, MA and PA. A Carbosieve Sll column (TCD) was used for the separation of oxygen, carbon monoxide and carbon dioxide. 

Parr C.A. Handley, "Laboratory Glass BLowing , ChemPublgCo, NY (1957) 6) A.J.B. Robertson... 

The submitters strongly recommend the use of a rotating evaporator (such as the Flash-Evaporator, Laboratory Glass Supply Co., New York 31, N. Y.) with which the solution can be reduced to a syrup in about 4 hours. The further evaporation is facilitated by adding 100 ml. of commercial absolute ethanol at this point and continuing the evaporation. Total time for evaporation will be about 6 hours, and the product will be a crystalline mass. The extraction step may be carried out in the 2-1. flask normally used with the evaporator. 

Experiments are performed in special laboratory ware made from thin or thick laboratory glass. Thin glassware must be chemically and thermally stable. Ware in which reactions are performed with heating is made from heat-resistant Pyrex glass and quartz. 

A. J. B. Robertson, Laboratory Glass Working for Scientists, Academic Press, New York, 1957. 

Ethanolic potassium hydroxide irritates skin. Laboratory glasses should be worn during preparation to protect the eyes. 

Laboratory Glass Blowing with Corning Glasses, 1961, Bulletin, B-72, Corning Glass Works, Corning, N. Y. 

Fig. II.1. Viscosity-temperature curves for some common laboratory glasses. The numbers in parentheses correspond to Corning designations. (Adapted from Corning Glass Works, Corning, NY, Bulletin B-83. 1957.)...

Detergents are ideal for washing laboratory glass ware. 

A laboratory glass-walled mixing simulator (dimensions 0.7 m x 0.5 m x 0.02 m) was built based on the pilot-scale apparatus (Fig. 1). Three pulsating pistons were attached at the bottom of the simulator. The circulation of the particles is due to the sequence of the pulsation of the pistons. The pattern of motion using the pistons is similar to the motion achieved by vibrating processes [6]. The difference between the two processes is that any kind of motion pattern can be acquired by using the pulsating mixer independently from the shape of vessel. 

Fig. 1. Schematic diagram of the laboratory glass-walled mixing simulator of (a) cylinder in the middle move down (b) cylinders in the middle move upwards.

The samples are completely immersed in the liquid, with no touching of the sides or bottom. Laboratory glass beads will assist with this. If the test is carried out near the boiling point of the liquid, it must be carried out in a container that is fitted with a reflux condenser. 

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