A set of MAPP and oxygen cylinders used for oxy-fuel welding and cutting.

MAPP gas is liquefied petroleum gas mixed with methylacetylene-propadiene. MAPP is the tradename for a product of the Dow Chemical Company. In Australia it is known as RazorGas and is a trademark of ELGAS. Download high resolution version (1517x1609, 627 KB) Oxygen and MAPP gas compresed gas cylinders with regulators. ... Download high resolution version (1517x1609, 627 KB) Oxygen and MAPP gas compresed gas cylinders with regulators. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ... Oxy-fuel welding of metal is commonly called oxyacetylene welding since acetylene is the predominant choice for a fuel, or often simply gas welding. ... Methylacetylene (propyne) is an alkyne with the chemical formula CH3C≡CH. It is a component of MAPP gas, which is commonly used in gas welding. ... Propan-1,2-diene is the simplest allene. ... A trade name, also known as a trading name or a business name, is the legal name of a business, or the name which a business trades under for commercial purposes. ... Dow Chemical Company (NYSE: DOW TYO: 4850 ) is a United States-based multinational corporation. ...

The gas is used for welding due to its high combustion temperature of 2927 °C (5301 °F) in oxygen. Although acetylene has a higher welding temperature (3160 °C, 5720 °F), MAPP has the advantage that it requires neither dilution nor special container fillers during transport, allowing a greater volume of welding gas to be transported at the same given weight. Also, MAPP is advantageously used in underwater welding, which requires high gas pressures (under such pressures acetylene decomposes to explosive hydrogen and carbon, making it dangerous to use.) A gas is one of the five main phases of matter (after solid and liquid, and followed by plasma and Bose-Einstein Condensate) and, that subsequently appear as a solid material is subjected to increasingly higher temperatures. ... Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. ... Combustion or burning is a complex sequence of chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames. ... Fig. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ... Acetylene (IUPAC name: ethyne) is the simplest alkyne hydrocarbon, consisting of two hydrogen atoms and two carbon atoms connected by a triple bond. ... Volume, also called capacity, is a quantification of how much space an object occupies. ... Weight is a term of measurement referring to either an objects mass or to the gravitational force acting on the object. ... The use of water pressure - the Captain Cook Memorial Jet in Lake Burley Griffin, Canberra. ... A chemical reaction occurs when vapours of hydrogen chloride and ammonia meet to form a cloud of a new substance, ammonium chloride Chemical reaction is a process that results in the interconversion of chemical substances [1]. The substance or substances initially involved in a chemical reaction are called reactants. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ...

The gas is also used for brazing and soldering, under combustion in ambient air, where it has considerable advantage over competing liquid petroleum gas (i.e., propane-based) fuel due to its higher combustion temperature. A typical MAPP gas brazing operation would involve using it to silver braze (sometimes colloquially and inaccurately called silver solder) steel parts together. Brazing is a joining process whereby a non-ferrous filler metal and an alloy are heated to melting temperature (above 450°C / 800°F) and distributed between two or more close-fitting parts by capillary action. ... (De)soldering a contact from a wire. ... Liquified petroleum gas (also called liquefied petroleum gas, liquid petroleum gas, LPG, LP gas, or autogas) is a mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles, and increasingly replacing fluorocarbons as an aerosol propellant and a refrigerant to reduce damage to the ozone layer. ... Propane is a three-carbon alkane, normally a gas, but compressible to a liquid that is transportable in inexpensive containers. ... Brazing is a joining process whereby a non-ferrous filler metal and an alloy are heated to melting temperature (above 450°C / 800°F) and distributed between two or more close-fitting parts by capillary action. ...

Plumbers use both MAPP gas and propane for pipe soldering and brazing, but MAPP gas' higher combustion temperature makes such jobs quicker. MAPP gas is also popular among glass lampworkers, for instance glass bead makers. Lampwork glass beads. ... Beads are amongst the oldest human art and technology, dating back 30,000 years (Dubin, 1987). ...

The biggest disadvantage of MAPP gas is cost; it is between two and four times as expensive as LPG (depending on quantity, supplier, and bottle size). While nine kilogram LPG cylinders are common, the largest MAPP cylinder available in Australia is three kilograms. 45 kg LPG cylinders Liquified petroleum gas (also called liquefied petroleum gas, liquid petroleum gas, LPG, LP Gas, or autogas) is a mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles, and increasingly replacing chlorofluorocarbons as an aerosol propellant and a refrigerant to reduce damage to...

MAPP is colorless in both liquid and gas form. The gas has a pronounced garlic or fishy odor at concentrations above 100 ppm and is toxic if inhaled at high concentrations. Binomial name Allium sativum L. Percentages are relative to US RDI values for adults. ... Parts per million (ppm) is a measure of concentration that is used where low levels of concentration are significant. ... Toxic redirects here, but this is also the name of a song by Britney Spears; see Toxic (song) Look up toxic and toxicity in Wiktionary, the free dictionary. ...

External links

• http://www.cdvkiln.com/popmappa.htm