phosphorus-free
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Phosphorus — This article is about the chemical element. For other uses, see Phosphorus (disambiguation). silicon ← phosphorus → sulfur … Wikipedia
phosphorus — /fos feuhr euhs/, n., pl. phosphori / feuh ruy /. 1. Chem. a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less… … Universalium
Phosphorus — /fos feuhr euhs/, n. Phosphor. * * * Nonmetallic chemical element, chemical symbol P, atomic number 15. The ordinary allotrope, called white phosphorus, is a poisonous, colourless, semitransparent, soft, waxy solid that glows in the dark (see… … Universalium
Phosphorus — An essential element in the diet and a major component of bone. * * * A nonmetallic chemical element, atomic no. 15, atomic wt. 30.973762, occurring extensively in nature always in combination as phosphates, phosphites, etc., and as the phosphate … Medical dictionary
Oxygen-free copper — The CuOFP capsule used as overpack for spent nuclear fuel disposal in the KBS 3 concept (Finnish version) Oxygen free copper (OFC) or Oxygen free high thermal conductivity (OFHC) copper generally refers to a group of wrought high conductivity… … Wikipedia
Air-free technique — Air free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less… … Wikipedia
Oxygen-free — may refer to the absence of oxygen in an environment or in a material. Environmental conditions Anoxic, an environment with low, or near zero, oxygen content; Anaerobic, a technical word which literally means without air (where air is generally… … Wikipedia
Bessemer, Sir Henry — born Jan. 19, 1813, Charlton, Hertfordshire, Eng. died March 15, 1898, London British inventor and engineer. Son of a metallurgist, he set up his own casting business at 17. At that time the only iron based construction materials were cast iron… … Universalium
Bessemer , Sir Henry — (1813–1898) British inventor and engineer Bessemer was the son of a mechanical engineer who had fled from the French Revolution. After leaving the village school in Charlton, where he was born, he worked as a type caster, until the family moved… … Scientists
Workington — For other uses, see Workington (disambiguation). Coordinates: 54°38′11″N 3°33′18″W / 54.6365°N 3.5549°W / 54.6365; 3.5549 … Wikipedia
Diamond Match Company — The Diamond Match Company was the largest manufacturer of matches in the United States in the late nineteenth century.[1] Jarden is the current owner of the Diamond brand. History The Diamond Match Company was established in around 1881. It was… … Wikipedia
