Paraffin wax is a soft colorless solid derived from petroleum, coal, or oil shale that consists of a mixture of hydrocarbon molecules containing between 20 and 40 carbon atoms. It is solid at room temperature and begins to melt above approximately 37 °C (99 °F), and its boiling point is above 370 °C (698 °F). Common applications for paraffin wax include lubrication, electrical insulation, and candles; dyed paraffin wax can be made into crayons.
The oersted is the coherent derived unit of the auxiliary magnetic field H in the centimetre–gram–second system of units (CGS). It is equivalent to 1 dyne per maxwell.
The van der Waals radius, rw, of an atom is the radius of an imaginary hard sphere representing the distance of closest approach for another atom. It is named after Johannes Diderik van der Waals, winner of the 1910 Nobel Prize in Physics, as he was the first to recognise that atoms were not simply points and to demonstrate the physical consequences of their size through the van der Waals equation of state.
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia.
Elastic properties describe the reversible deformation of a material to an applied stress. They are a subset of the material properties that provide a quantitative description of the characteristics of a material, like its strength.
Plutonium-239 is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three main isotopes demonstrated usable as fuel in thermal spectrum nuclear reactors, along with uranium-235 and uranium-233. Plutonium-239 has a half-life of 24,110 years.
Please find below supplementary chemical data about dichloromethane.
The table below provides information on the variation of solubility of different substances in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water, unless shown otherwise. The substances are listed in alphabetical order.
Thomas Howell Laby FRS, was an Australian physicist and chemist, Professor of Natural Philosophy, University of Melbourne 1915–1942. Along with George Kaye, he was one of the founding editors of the reference book Tables of Physical and Chemical Constants and Some Mathematical Functions, usually known simply as "Kaye and Laby".
George William Clarkson Kaye was an English physicist. He is best known as one of the authors, together with Thomas Laby, of the authoritative scientific reference work Tables of Physical and Chemical Constants and Some Mathematical Functions, first published in 1911 and better known as Kaye and Laby. He was a driving force behind the formation and early years of the ‘International X-ray and Radium Protection Committee’ (IXRPC), the world's first international radiological protection body, created in 1928.
