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A set of MAPP and oxygen cylinders is used for oxy-fuel welding and cutting.. MAPP gas was a trademarked name, belonging to The Linde Group, a division of the former global chemical giant Union Carbide, for a fuel gas based on a stabilized mixture of methylacetylene (propyne), propadiene and propane.
LME Copper futures prices are also a part of the S&P GSCI commodity index, which is a benchmark index widely followed in financial markets by traders and institutional investors. Its weighting in these commodity indices give LME Copper futures prices non-trivial influence on returns on a wide range of investment funds and portfolios. Conversely ...
Methylacetylene-propadiene (MPS) gas is a type of fuel gas used in oxy-fuel welding and cutting torches, comprising a mixture of several gases. MPS gases [ edit ]
The joint is then heated, typically by using a propane or MAPP gas torch, although electrically heated soldering tools are sometimes used. Once the fitting and pipe have reached sufficient temperature, solder is applied to the heated joint, and the molten solder is drawn into the joint by capillary action as the flux vaporizes.
Sulfide ores such as those commonly used to obtain copper, zinc or lead, are roasted before smelting in order to convert the sulfides to oxides, which are more readily reduced to the metal. Roasting heats the ore in the presence of oxygen from air, oxidizing the ore and liberating the sulfur as sulfur dioxide gas.
The purest copper is obtained by an electrolytic process, undertaken using a slab of impure copper as the anode and a thin sheet of pure copper as the cathode. The electrolyte is an acidic solution of copper (II) sulfate. By passing electricity through the cell, copper is dissolved from the anode and deposited on the cathode. However ...
MAPP or Mapp may refer to: MAPP gas, a fuel for brazing and soldering torches; Mapp (surname) Mid-continent Area Power Pool, a part of the American Midwest Reliability Organization; Mapp Biopharmaceutical, manufacturers of ZMapp Ebola vaccine; Mapp and Lucia, a series of novels featuring Miss Mapp
In industry parlance, contango may refer to the situation when futures prices (or forward prices) are above the current spot price, or a far-dated futures price is above a near-dated futures price, and the expectation is for the spot price to rise to the futures price at maturity, or the near-dated futures price to rise to the far-dated futures ...