Oxyhydrogen

In the modified chemical vapor deposition (MCVD) technique, the reactants are deposited on the inside of a rotating siUca tube. The hoUow tube is heated from the outside by a moving oxyhydrogen torch. The oxide soot condenses onto the tube walls ahead of the burner, and the soot is then sintered into a glassy layer as the burner passes over it. When deposition is complete, the tube and its contents are collapsed to form a soHd preform rod. 

Knallerbse, /, (Fireworks) torpedo, knallfahig, a. detonating, explosive. Knallflamme. /. oxyhydrogen flame. 

Friedman, R., The quenching of laminar oxyhydrogen flames by solid surfaces, Proc. Comb. Inst., 3 110,1949. 

C05-0032. A reaction vessel contains H2 gas at 2.40 atm. If just enough O2 is added to react completely with the H2 to form H2 O, what will the total pressure in the vessel be before any reaction occurs (H2 and O2 can also be used as a torch. The flame produced in an oxyhydrogen torch is about 4000 K.)... 

An impressive example of the impact of miniaturization on the explosion limit has been given for the oxyhydrogen reaction [18]. For a conventional reactor of 1 m diameter, explosive behavior sets in at 420 °C at ambient pressure (10 Pa). An explosion occurs at about 750 °C, when the reactor diameter is decreased to about 1 mm. A further reduction to 100 pm shifts the explosive regime further to higher pressures and temperatures. 

In the Wickbold method, solid samples are vaporised in an oxygen stream and fed into an oxyhydrogen flame, which bums in a cooled quartz tube. The combustion products are condensed here, or are captured in an absorption solution as gaseous materials. Although combustion in a Wickbold apparatus is a quick and effective method for destroying organic material of all types, incomplete destruction may occur [19]. In special digestion vessels, known as cold-plasma ashers (CPA),... 

ASTM D126 IP 107) that uses a modification of the standard wick-fed lamp. Many laboratories use rapid combustion techniques with an oxyhydrogen flame in a Wickbold or Martin-Floret burner (ASTM D2784 IP 243). 

Peschek, G. A. (1979b) Aerobic hydrogenase activity in Anacystis nidulans. The oxyhydrogen reaction. Biochim. Biophys. Acta, 548, 203-15. 

Gas chromatography and mass spectroscopy (GC/MS) of inorganic and organometallic compounds, 18 273-276 Gaseous hydroxides, 5 215-258 dimerization of, 5 224 mass spectrometric study of, 5 220-225 metalic, 5 220 nonmetallic, 5 217-220 study of in oxyhydrogen flame, 5 225-226 types of, 5 215-217 Gases, see also specific substances high ternperamre species from, 14 137-139 thermal decomposition of, 17 90-93 Gas phase electron resonance spectra, of sulfur and selenium fluorides, 24 190... 

Two strips of tinfoil were included on the electrical circuit of a chronograph and the time between their breaks served to aid in the calcn of deton velocity. This was found equal to ca 28lQm/sec and there was no difference which material was used as the tube (rubber, lead, glass), provided its diameter was not below a certain value (2mm). For example, deton vel in a glass tube of 1.5mm diam was found to be for oxyhydrogen ca 2341 m/sec (Ref 5, p 144-45)... 

W. N. Hartley 57 found the alkali chlorides in the oxyhydrogen blowpipe flame give lines of elements with a more or less continuous spectrum believed to be due to the respective metals. Lithium chloride, however, gives no continuous spectrum. G. P. Thomson studied the anode rays from lithium chloride and other alkali halides. 

Friedman, R., Quenching of Laminar Oxyhydrogen Flames by Solid Surfaces, Third... 

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