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Ligroin
Ligroin is the petroleum fraction consisting mostly of C7 and C8 hydrocarbons and boiling in the range 90‒140 °C (194–284 °F). The fraction is also called heavy naphtha. Ligroin is used as a laboratory solvent. Products under the name ligroin can have boiling ranges as low as 60‒80 °C and may be called light naphtha. The name ''ligroin'' (or ''ligroine'' or ''ligroïne'') appeared as early as 1866.The name "ligroin" was coined in the United States: * From p. 349: ''"Ligroine; der in Amerika erfundene Name für einen der flüchtigeren Teile des rohen Petroleums, … "'' (Ligroin: the name that was coined in America for one of the more volatile parts of crude petroleum, … ) Early use in English: * From p. 389: "Dr. Van der Weyde then exhibited some samples of the products of distillation of tar, and a safety-lamp for burning the lighter hydro-carbons, which is mainly a reproduction of the "Ligroine" lamp invented and put into the market first by C. Schrei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naphtha
Naphtha (, recorded as less common or nonstandard in all dictionaries: ) is a flammable liquid hydrocarbon mixture. Generally, it is a fraction of crude oil, but it can also be produced from natural-gas condensates, petroleum distillates, and the fractional distillation of coal tar and peat. In some industries and regions, the name ''naphtha'' refers to crude oil or refined petroleum products such as kerosene or diesel fuel. Naphtha is also known as Shellite in Australia. Etymology The word ''naphtha'' comes from Latin through Ancient Greek (), derived from Middle Persian ''naft'' ("wet", "naphtha"), the latter meaning of which was an assimilation from the Akkadian 𒉌𒆳𒊏 (see Semitic relatives such as Arabic petroleum" Syriac ''naftā'', and Hebrew , meaning petroleum). Antiquity The book of II Maccabees (2nd cent. BC) tells how a "thick water" was put on a sacrifice at the time of Nehemiah and when the sun shone it caught fire. It adds that "those aro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wiesloch
Wiesloch (, locally ; South Franconian: ''Wissloch'') is a town in northern Baden-Württemberg, Germany. It is situated 13 kilometres south of Heidelberg. After Weinheim, Sinsheim and Leimen, it is the fourth largest town in the Rhein-Neckar-Kreis. It shares Wiesloch-Walldorf station with its neighbouring town Walldorf. Also in the vicinity of Wiesloch are Dielheim, Malsch (bei Wiesloch), Mühlhausen, Rauenberg and Sankt Leon-Rot. Wiesloch's population grew to more than 20,000 when the administration of the area was reorganised in the 1970s. Wiesloch became a '' Große Kreisstadt'' on 1 January 1973, when Altwiesloch, Baiertal, Frauenweiler and Schatthausen were amalgamated with Wiesloch to form the present municipality. History The settlement that is now Wiesloch town centre originated during the expansion of silver mining in the vicinity in the 10th century. Fossil site The fossil remains of the oldest hummingbird found to date, '' Eurotrochilus inexpectatus'', wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertha Benz
Bertha Benz (; ; 3 May 1849 – 5 May 1944) was a German automotive pioneer. She was the business partner, investor and wife of automobile inventor Carl Benz. On 5 August 1888, she was the first person to drive an Internal combustion engine, internal-combustion-engined automobile over a long distance, field testing the Benz Patent-Motorwagen, inventing brake lining and solving several practical issues during the journey of 105 km (65 miles). In doing so, she brought the Patent-Motorwagen worldwide attention and got their company its first sales. Bertha Benz was not allowed to study in the Grand Duchy of Baden, and her financial and practical engineering contributions have long been overlooked until the 21st century. Early life and education Cäcilie Bertha Ringer was born on 3 May 1849 to a wealthy carpenter family in Pforzheim. She was the third of nine children. Her father, Karl Friedrich Ringer, a master builder and carpenter, and her 20 year younger mother, Auguste Fri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum Ether
Petroleum ether is the petroleum fraction consisting of aliphatic hydrocarbons and boiling in the range 35–60 °C, and commonly used as a laboratory solvent. Despite the name, petroleum ether is not an ether; the term is used only figuratively, signifying extreme lightness and volatility. Properties The very lightest, most volatile liquid hydrocarbon solvents that can be bought from laboratory chemical suppliers may also be offered under the name petroleum ether. Petroleum ether consists mainly of aliphatic hydrocarbons and is usually low in aromatics. It is commonly hydrodesulfurized and may be hydrogenated to reduce the amount of aromatic and other Saturated and unsaturated compounds, unsaturated hydrocarbons. Petroleum ether bears normally a descriptive suffix giving the boiling range. Thus, from the leading international laboratory chemical suppliers it is possible to buy various petroleum ethers with boiling ranges such as 30–50 °C, 40–60 °C, 50–70& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum
Petroleum, also known as crude oil or simply oil, is a naturally occurring, yellowish-black liquid chemical mixture found in geological formations, consisting mainly of hydrocarbons. The term ''petroleum'' refers both to naturally occurring unprocessed crude oil, as well as to petroleum products that consist of refining, refined crude oil. Petroleum is a fossil fuel formed over millions of years from anaerobic decay of organic materials from buried prehistoric life, prehistoric organisms, particularly planktons and algae, and 70% of the world's oil deposits were formed during the Mesozoic. Conventional reserves of petroleum are primarily recovered by oil drilling, drilling, which is done after a study of the relevant structural geology, sedimentary basin analysis, analysis of the sedimentary basin, and reservoir characterization, characterization of the petroleum reservoir. There are also unconventional (oil & gas) reservoir, unconventional reserves such as oil sands and oil sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertha Benz Memorial Route
The Bertha Benz Memorial Route is a German tourist and theme route in Baden-Württemberg and member of the European Route of Industrial Heritage. It opened in 2008 and follows the tracks of the world's first long distance road trip by a vehicle powered with an internal combustion engine, in 1888. The trip was taken by Bertha Benz in the world's first automobile, the Benz Patent-Motorwagen, created by her husband Carl Benz. History Bertha Benz's husband, Carl Benz, patented the first automobile designed to produce its own power in January 1886 (). In early August 1888, without her husband's knowledge, Bertha Benz, with her sons Richard (aged 14) and Eugen (aged 15), drove in Benz's newly constructed Patent Motorwagen No. 3 automobile, from Mannheim to her own birthplace, Pforzheim, becoming the first person to drive an automobile powered with an internal combustion engine over more than a very short distance. The distance was about . Distances driven before this historic tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Spirit
White spirit (AU, UK and Ireland)Primarily in the United Kingdom and Australia. In New Zealand "white spirit" can also refer to Coleman fuel (white gas). or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ/ZA), turpentine substitute, and petroleum spirits, is a petroleum-derived clear liquid used as a common organic solvent in painting. There are also terms for specific kinds of white spirit, including Stoddard solvent and solvent naphtha (petroleum). White spirit is often used as a paint thinner, or as a component thereof, though paint thinner is a broader category of solvent. Odorless mineral spirits (OMS) have been refined to remove the more toxic Aromaticity, aromatic compounds, and are recommended for applications such as oil painting. A mixture of Aliphatic compound, aliphatic, open-chain or alicyclic C7 to C12 hydrocarbons, white spirit is insoluble in water and is used as an Liquid–liquid extraction, extraction solvent, as a cleaning solvent, as a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filling Station
A filling station (also known as a gas station [] or petrol station []) is a facility that sells fuel and engine lubricants for motor vehicles. The most common fuels sold are gasoline (or petrol) and diesel fuel. Fuel dispensers are used to pump gasoline, diesel, compressed natural gas, compressed hydrogen, hydrogen compressed natural gas, liquefied petroleum gas, liquid hydrogen, kerosene, alcohol fuels (like methanol, ethanol, butanol, and propanol), biofuels (like straight vegetable oil and biodiesel), or other types of fuel into the tanks within vehicles and calculate the financial cost of the fuel transferred to the vehicle. Besides gasoline pumps, one other significant device which is also found in filling stations and can refuel certain (compressed-air) vehicles is an air compressor, although generally these are just used to inflate car tires. Many filling stations provide convenience stores, which may sell convenience food, beverages, tobacco produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pforzheim
Pforzheim () is a List of cities and towns in Germany, city of over 125,000 inhabitants in the federal state of Baden-Württemberg, in the southwest of Germany. It is known for its jewelry and watch-making industry, and as such has gained the nickname "Goldstadt" ("Golden City"). With an area of , it is situated about halfway between the cities of Stuttgart and Karlsruhe at the confluence of three rivers (Enz, Nagold (river), Nagold and Würm (Nagold), Würm). It marks the frontier between Baden and Württemberg, being located on Baden territory. From 1535 to 1565, it was the home to the Margraviate of Baden-Durlach, Margraves of Baden-Durlach. The City of Pforzheim is a ''Districts of Germany, Stadtkreis'', meaning it is both a Municipalities of Germany, municipality and a Districts of Germany, district at the same time. Also, it hosts the administrative offices of the Enz (district), Enz district that surrounds the city. During World War II, Pforzheim was bombed by the Allie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mannheim
Mannheim (; Palatine German language, Palatine German: or ), officially the University City of Mannheim (), is the List of cities in Baden-Württemberg by population, second-largest city in Baden-Württemberg after Stuttgart, the States of Germany, state capital, and Germany's List of cities in Germany by population, 21st-largest city, with a population of over 315,000. It is located at the border with Rhineland-Palatinate. The city is the cultural and economic centre of the Rhine-Neckar, Germany's Metropolitan regions in Germany, seventh-largest metropolitan region, with nearly 2.4 million inhabitants. Mannheim is located at the confluence of the Upper Rhine and the Neckar in the Kurpfalz (region), Kurpfalz (Electoral Palatinate) region of northwestern Baden-Württemberg. The city lies in the Upper Rhine Plain, Germany's warmest region, between the Palatine Forest and the Oden Forest. Mannheim forms a continuous urban zone of around 500,000 inhabitants with Ludwigshafen am Rhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum Benzine
Petroleum benzine is a hydrocarbon-based solvent mixture that is classified by its physical properties (e.g. boiling point, vapor pressure) rather than a specific chemical composition. The chemical composition of a petroleum distillate can be modified to result in a solvent with a reduced concentration of unsaturated hydrocarbons, ''i.e.'' alkenes, by hydrotreating and/or reduced aromatics, ''e.g.'' benzene, toluene, xylene, by several dearomatization methods. The most important distinction amongst the various hydrocarbon solvents may be their boiling/distillation ranges (and, by association, volatility, flash point, etc.) and aromatic content. Given the toxicity/carcinogenicity of some aromatic hydrocarbons, most notably benzene, the aromatic content of petroleum distillate solvents, which would typically be in the 10-25% (w/w) range for most petroleum fractions, can be advantageously reduced when their unique solvation properties are not required, and a less odorous, lower to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benz Patent-Motorwagen
The Benz Patent-Motorwagen ("patent motorcar"), built in 1885 by the German engineer Karl Benz, is widely regarded as the first practical automobile and was the first car put into production. It was patented in January 1886 and unveiled in public later that year. The original cost of the vehicle was 600 German gold mark, imperial German marks, approximately 150 US dollars (). Two years after Karl Benz drove the car in public in July 1886,Karl Benz drives the first automobile 3 July 1886 edn.com Karl's wife Bertha Benz, Bertha demonstrated its feasibility in a trip from Mannheim to Pforzheim in August 1888. Around the same time, the Patent-Motorwagen became the first commercially available automobile in history. Émile Roger, who made Benz engines under license in France, was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
