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Originally posted by LeftBehind
3. Thermite is also used for welding, so it is possible that he is finding traces of thermite used to build the towers.
In thermite welding, heat is generated by the chemical reaction that results when a mixture of aluminum powder and iron oxide, known as thermite, is ignited. The aluminum unites with the oxygen and generates heat, releasing liquid steel from the iron. The liquid steel serves as filler metal for the weld. Thermite welding is employed chiefly in welding breaks or seams in heavy iron and steel sections.
However, one torch cutter was overexposed to cadmium and another worker (and possibly three others) was overexposed to CO. The elevated cadmium and CO levels were the result of workers using oxy-acetylene cutting torches and gasoline-powered cutting saws.
“Shipbuilding & Demolition, Farm Shops, Scrape Yard, Machinery Works, Steel Mills, Mines, Fire Rescue, Glassware Mills, Marble Mills, Car Reparation, Construction, Tube and Pipe, all the sectors will benefit from our ne cutting torch.
Acetylene has been used in steel cutting and other heat treat operations for many decades. Acetylene is very hazardous and energy costly. It is also notorious for its pollution.