Dry distillation is the heating of solid materials to produce liquid or gaseous products (which may condense into solids). As the products distill off, they are condensed and collected. This method usually requires higher temperatures than liquid distillation. The method can be used to obtain liquid fuels from coal and wood. It can also be used to break down mineral salts such as sulfates through thermolysis, in this case producing sulfur dioxide/sulfur trioxide gas which can be dissolved in water to obtain sulfuric acid. This is how sulfuric acid was first produced. In physics, heat is defined as energy in transit. ... In jewelry, a solid gold piece is the alternative to gold-filled or gold-plated jewelry. ... A liquid will assume the shape of its container. ... For other meanings see gas (disambiguation). ... Condensation is the change in matter1 of a substance to a denser phase, such as a puppy gas (or vapor) to a liquid. ... Strathisla whisky distillery in Keith, Scotland Distillation is a method of separation of substances based on differences in their vapor pressures. ... Fuel is a material with one type of energy which can be transformed into another usable energy. ... Coal (previously referred to as pitcoal or seacoal) is a fossil fuel extracted from the ground by underground mining or open-pit mining (surface mining). ... A tree trunk as found at the Veluwe, The Netherlands Wood derives from woody plants, notably trees but also shrubs. ... A magnified crystal of a salt (halite/sodium chloride) In chemistry, a salt is any ionic compound composed of positively charged cations and negatively charged anions so that the product is neutral and without a net charge. ... In inorganic chemistry, a sulfate (IUPAC-recommended spelling; also sulphate in British English) is a salt of sulfuric acid. ... Thermolysis (from thermo- meaning heat and -lysis meaning break down) is a chemical process by which a substance is decomposed into other substances by use of heat. ... Sulfur dioxide (or Sulphur dioxide) has the chemical formula SO2. ... Sulfur trioxide (British spelling: Sulphur trioxide) has the chemical formula SO3. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ... It has been suggested that this article or section be merged into sulfuric acid. ...
Categories: Chemistry stubs | Distillation Thermolysis (from thermo- meaning heat and -lysis meaning break down) is a chemical process by which a substance is decomposed into other substances by use of heat. ... Simple sketch of pyrolysis chemistry Pyrolysis usually means the chemical decomposition of organic materials by heating in the absence of oxygen or any other reagents, except possibly steam. ...
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