Glass Kimax

The synthesis of each polymer was performed in a glass Kimax flask. An aqueous solution of tetramisole was mixed with an aqueous solution of K2PtCl4 and allowed to stir for 24-36 hours. The resulting compound (polymer form of the inducer) was filtered and air dried in a glass petri dish. 

Disposable syringe filter, 0.2-pm or 0.45-pm Round-bottom flasks, KIMAX Glass-wool... 

Graduated cylinders Kimax brand. Red Stripe, glass, 100- and 500-mL and 1-L HPLC sample vials HP Amber with Teflon/silicone/Teflon septa, capacity 2-mL Volumetric flasks, 200-mL... 

Thermal expansion of water and glass is discussed in Section 2-9. In contrast to older types of glass, volumetric glassware made of Pyrex, Kimax, or other low-expansion glass can be safely dried in an oven heated to at least 320°C without harm,16 although there is rarely reason to go above 150°C. 

Kimax glass, see Borosilicate glass Kirchoff vapor pressure equation, 284 Kovar ... 

Irradiations are carried out in Kimax glass ampoules. These ampoules are filled with 5 cc. of the solution, irradiated, using the apparatus previously described (7), and flame-sealed with a Perfe Keum Model HS-1 ampoule sealer. The irradiation source used for these experiments is a 1.3 X 106 curie cobalt-60 source consisting of two parallel plaques 56 inches wide by 48 inches high, spaced 16 inches apart. For most irradiations, the ampoules are placed in the center of a Masonite phantom which completely fills a No. 10 can (6 inches in diameter by 7 inches high). The can is placed in a fixed position in an aluminum carrier and transported into the irradiation cell to a predetermined position (5). The source is then elevated from the bottom of a 25-foot, water-filled pool into the irradiation position. After the desired exposure, the source is lowered to the bottom of the pool. 

Extraction of pesticides from wool Raw sheep wool both exposed and not exposed to pesticide diazinon (Dr Ehrenstorfer, Germany) methanol (BDH, NZ) 15ml glass tubes (Kimax, USA) acetonitrile... 

Many disposable glass laboratory items are made of soft glass. If a laboratory glass item does not specifically bear one of the words Pyrex , Kimax , or Duran in printed or raised letters, it is likely to be a soda-lime type of glass. 

In the following experiments use a 1.0 x 30.0 cm column containing a fritted glass base (Kimax 28570 or equivalent). 

Borosilicate glass is soda-lime glass to which boric oxide has been added. It is known under the brand names of Pyrex and Kimax . The addition of boron to the glass produces a product with superior durability, chemical, and heat resistance. 

Glassware types include Class A and Class B. Class A glassware is manufactured to the highest tolerances from Pyrex, borosilicate, or Kimax glass (see tables on pages 41 and 42). Class B (economy ware) tolerances are about twice those of Class A. 

Table 2.1 lists the properties of materials used in the manufacture of common laboratory apparatus. Borosilicate glass (brand names Pyrex, Kimax) is the most commonly used material for laboratory apparatus such as beakers, flasks, pipets, and burets. It is stable to hot solutions and to rapid changes in temperature. For more... 

Note the change in flame color, shape, and size. With each flame measure the emission at 589.0 and 589.5 nm. This is from sodium contamination in the flame gases and from dust in the atmosphere. Aspirate into the flame (a) deionized water from a plastic container, (b) deionized water from a soda-lime glass container (your typical glass jar or bottle), and (c) deionized water from a borosilicate glass container (e.g., Pyrex or Kimax ). (Allow water to sit in each container overnight). Compare with freshly drawn deionized water. Compare the relative sodium contamination of the water by the containers (emission intensity at 589.0 nm). 

Anhydrous phosgene in the liquid state is compatible with a variety of common metals, including aluminum (of 99.5 percent purity), copper, pure iron or cast iron, steel (including cast steel and chrome-nickel steels), lead (up to 250°F or 12 PC), nickel, and silver it is also compatible with platinum and platinum alloys in instruments. Nonmetallic materials with which liquid anhydrous phosgene is also compatible include acid resistant linings (ceramic plates and carbon blocks), enamel on cast iron or glass-lined steel, Pyrex or Kimax, porcelain, quartzware, granite or basalt natural stone, stoneware, and Teflon. 

Syntheses are accomplished by mixing aqueous solutions containing the palladium compound and the diamine in an open Kimax glass beaker with constant stirring furnished by a magnetic stirrer. The product precipitates from the reaction mixture and is removed by suction filtration, washed repeatedly with ionized, doubly distilled water, washed onto a glass petri dish and dried. The product is typically a light to dark brown powder. 

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