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Sultepec
Sultepec is a municipality in the State of Mexico in Mexico. The municipal seat is Sultepec de Pedro Ascencio de Alquisiras. The municipality covers an area of 552.52 km². The Spanish discovered silver lodes here in 1531, which started commercial silver mining in the area. Along with Amatepec the area became known as the "Provincia de la Plata". Johann Engel was one of the Germans to settle in the area in 1536, and introduced litharge as a flux in the smelting of the ore. Amalgamation Amalgamation is the process of combining or uniting multiple entities into one form. Amalgamation, amalgam, and other derivatives may refer to: Mathematics and science * Amalgam (chemistry), the combination of mercury with another metal **Pan ama ... was used on a large scale in 1556. As of 2005, the municipality had a total population of 24,986. References Municipalities of the State of Mexico Populated places in the State of Mexico {{México-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico (state)
The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Colloquially known as Edomex (from , the abbreviation of , and ), to distinguish it from the name of the whole country, it is the most populous state and the second most densely populated. Located in central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides. It borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east. The territory now comprising the State of Mexico once formed the core of the pre-Hispanic Aztec Empire. During the Spanish colonial period, the region was incorporated into New Spain. After gaining independence in the 19th century, Mexico City was chosen as the new nation's capital; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of Mexico
The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Colloquially known as Edomex (from , the abbreviation of , and ), to distinguish it from the name of the whole country, it is the most populous state and the second most densely populated. Located in central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides. It borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east. The territory now comprising the State of Mexico once formed the core of the pre-Hispanic Aztec Empire. During the Spanish colonial period, the region was incorporated into New Spain. After gaining independence in the 19th century, Mexico City was chosen as the new nation's cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipalities Of The State Of Mexico
State of Mexico, Mexico is a Administrative divisions of Mexico#States, state in central Mexico that is divided into 125 municipalities of Mexico, municipalities. According to the 2020 Censo General de Población y Vivienda, Mexican census, it is the List of Mexican states by population, most populated state with inhabitants and the List of Mexican states by area, 8th smallest by land area spanning . Municipalities in the State of Mexico are administratively autonomous of the state according to the 115th article of the 1917 Constitution of Mexico. Every three years, citizens elect a municipal president (Spanish: ''presidente municipal'') by a plurality voting system who heads a concurrently elected municipal council (''ayuntamiento'') responsible for providing all the public services for their constituents. The municipal council consists of a variable number of trustees and councillors (''regidores y síndicos''). Municipalities are responsible for public services (such as wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amatepec
Amatepec is one of 125 municipalities, in Mexico State in Mexico. The municipal seat is the town of Amatepec and its largest town is Palmar Chico. The municipality covers an area of 624.9 km². The name Amatepec comes from Náhuatl meaning "hill of the Amate tree". The Spanish discovered silver lodes here in 1531, which started commercial silver mining in the area. Along with Sultepec, the area became known as the "Provincia de la Plata". As of 2005, the municipality had a total population of 27,026. Archaeological site Northeastern of the city around 15 miles away of Amatepec, was discovered the Archaeological site of San Miguel Ixtapan that belonged to the Otomi people The Otomi (; ) are an Indigenous people of Mexico inhabiting the central Mexican Plateau (Altiplano) region. The Otomi are an Indigenous people of the Americas who inhabit a discontinuous territory in central Mexico. They are linguistically rel .... This place is the most important prehispanic site ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipalities Of Mexico
Municipalities () are the administrative divisions under the List of states of Mexico, states of Mexico according to the Constitution of Mexico, constitution. Municipalities are considered as the second-level administrative divisions by the Federal government of Mexico, federal government. However, some state regulations have designed intrastate regions to administer their own municipalities. Municipalities are further divided into Localities of Mexico, localities in the structural hierarchy of administrative divisions of Mexico. As of December 2024, there are 2,462 municipalities in Mexico. In Mexico, municipalities should not be confused with cities (). Cities are Localities of Mexico, locality-level divisions that are administered by the municipality. Although some List of cities in Mexico, larger cities are consolidated with its own municipality and form a single level of governance. In addition, the 16 Boroughs of Mexico City, boroughs of Mexico City are considered municipali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Administrative Divisions Of Mexico
Mexico is a federal republic composed of 32 federative entities (): 31 states and Mexico City. According to the Constitution of Mexico, the states of the federation are free and sovereignty, sovereign in all matters concerning their internal affairs. Since 2016, Mexico City was made a fully autonomous entity on par with the states. Each state federative entity has its own congress and constitution. Overview The current structural hierarchy of Mexican administrative divisions are outlined by Constitution of Mexico as well as the constitutions and laws of federative entities. The laws together established the following levels of administrative divisions. The levels in bold are those regulated by the federal constitution. * List of states of Mexico, State () ** Intrastate region, Region () or district () — only in some states *** Municipalities of Mexico, Municipality () **** List of cities in Mexico, City (), town (), village (), or Localities of Mexico, others ***** Coloni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipal Seat
A municipal seat (Spanish: ; ) is the administrative center and seat of government of a municipality or civil parish, with other villages or towns subordinated. The term is used in Brazil, Colombia, Government of Colombia, January 29, 2017. , and . Other variations In Ecuador the term used is ''canton seat''; in Argentina, ''department seat''.See also * |
North American Central Time Zone
The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States, Mexico, Central America, and a few Caribbean Islands, Caribbean islands. In parts of that zone (20 states in the US, three provinces or territories in Canada, and several border municipalities in Mexico), the Central Time Zone is affected by two time designations yearly: Central Standard Time (CST) is observed from the first Sunday in November to the second Sunday in March. It is UTC−06:00, six hours behind Coordinated Universal Time (UTC) and designated internationally as UTC−6. From the second Sunday in March to the first Sunday in November the same areas observe daylight saving time (DST), creating the designation of Central Daylight Time (CDT), which is UTC−05:00, five hours behind UTC and known internationally as UTC−5. Regions using Central Time Canada The province of Manitoba is the only Provinces and territories of Canada, province or territory in Canada that obser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipal Seat
A municipal seat (Spanish: ; ) is the administrative center and seat of government of a municipality or civil parish, with other villages or towns subordinated. The term is used in Brazil, Colombia, Government of Colombia, January 29, 2017. , and . Other variations In Ecuador the term used is ''canton seat''; in Argentina, ''department seat''.See also * |
Litharge
Litharge (from Greek , 'stone' + 'silver' ) is one of the natural mineral forms of lead(II) oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores. It forms as coatings and encrustations with internal tetragonal crystal structure. It is dimorphous with the yellow orthorhombic form massicot. It forms soft ( Mohs hardness of 2), red, greasy-appearing crusts with a very high specific gravity of 9.14–9.35. PbO may be prepared by heating lead metal in air at approximately 600 °C (lead melts at only 300 °C). At this temperature it is also the end product of heating of other lead oxides in air. This is often done with a set of bellows pumping air over molten lead and causing the oxidized product to slip or fall off the top into a receptacle, where it quickly solidifies in minute scales. :PbO2 –(293 °C)→ Pb12O19 –(351 °C)→ Pb12O17 –(375 °C)→ Pb3O4 –(605 °C)→ PbO Historical terminology Historically, the term ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flux (metallurgy)
In metallurgy, a flux is a chemical reducing agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time. They are used in both extractive metallurgy and metal joining. Some of the earliest known fluxes were sodium carbonate, potash, charcoal, coke, borax, lime, lead sulfide and certain minerals containing phosphorus. Iron ore was also used as a flux in the smelting of copper. These agents served various functions, the simplest being a reducing agent, which prevented oxides from forming on the surface of the molten metal, while others absorbed impurities into slag, which could be scraped off molten metal. Fluxes are also used in foundries for removing impurities from molten nonferrous metals such as aluminium, or for adding desirable trace elements such as titanium. As reducing agents, fluxes facilitate soldering, brazing, and welding by removing oxidation from the metals to be joined. In some applications molten flux also serves as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelting
Smelting is a process of applying heat and a chemical reducing agent to an ore to extract a desired base metal product. It is a form of extractive metallurgy that is used to obtain many metals such as iron-making, iron, copper extraction, copper, silver mining#Ore processing, silver, tin, lead smelting, lead and zinc smelting, zinc. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal behind. The reducing agent is commonly a fossil-fuel source of carbon, such as carbon monoxide from incomplete combustion of coke (fuel), coke—or, in earlier times, of charcoal. The oxygen in the ore binds to carbon at high temperatures, as the Chemical energy, chemical potential energy of the bonds in carbon dioxide () is lower than that of the bonds in the ore. Sulfide ores such as those commonly used to obtain copper, zinc or lead, are roasting (metallurgy), roasted before smelting in order to convert the sulfid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
