Ignition glowing

U 1,1.. r,r rvlinder As soon as a glowing chip is ignited at S frll end and the moisture, which at first collects there, has disappeared,-the gas jets are turned down and finally ex-... 

Ignition denoted by flame, all others not so marked ( ) denoted by a glow. No ignition to 2 oz per cu ft, the highest tried. 

Fluorine causes the ignition of dilithium carbonate. Lithium oxide glows in contact with it. 

It violently reacts with strong oxidants such as ammonium perchlorate (ignition in contact with copper pip ), alkaline chlorates (detonation by heating, impact or friction powdered copper), ammonium nitrate (detonation molten ammonium nitrate and powdered copper) and potassium superoxide (copper glows). 

The mixtures of selenium and zinc, nickel or sodium glow on heating. The danger of the reaction depends on the state of division. With potassium, the ignition is immediate. 

A very violent detonation occurred when a mixture of chromium trioxide and acetic acid was heated (this mixture is used as an oxidant). The investigation showed that this accident was caused by liquid acid being in contact with oxide particles. These particles glowed and ignited the air/acid vapour mixture, which caused the apparatus to detonate. 

To test for the presence of hydrogen, inject the gas to be tested into bubble solution. The resulting bubbles should ignite easily. To test for the presence of oxygen, insert a glowing splint into the gas. The splint should immediately ignite. In this lab, you will discover what happens when an electric current is passed through water. 

Sodium 4-methylphenoxide solution was dehydrated azeotropically with chlorobenzene, and the filtered solid was dried in an oven, where it soon ignited and glowed locally. This continued for 30 min after it was removed from the oven. A substituted potassium phenoxide, prepared differently, also ignited on heating. Finely divided and moist alkali phenoxides may be prone to vigorous oxidation (or perhaps reaction with carbon dioxide) when heated in air. 

The powdered salt in admixture with charcoal explodes at 170°C, or the solid salt on contact with glowing charcoal. Phosphorus ignites on the fused salt. 

White phosphorus has an autoignition temperature only shghtly above ambient, dispersed it will soon heat itself to that by the slow oxidation responsible for its glow. Red is not spontaneously combustible, however if it does catch fire white will be produced, so that the fire, once extinguished, may spontaneously re-ignite. Both can produce phosphine, among other products, by slow reaction with water. Sealed containers of damp phosphorus (white is often stored under water) may pressurise with highly toxic, pyrophoric, gas mixtures [1]. 

Ignitability - (IEC 695) IEC Needle Flame and Glow Wire Tests... 

This contains two ignitability tests one uses a glowing wire and one a needle flame. Setchkin ignition apparatus. Measures flash ignition and spontaneous ignition temperatures. Normal sample orientation horizontal. 

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