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silica-gel indicator

См. также в других словарях:

  • Silica gel — Identifiers CAS number 63231 67 4  …   Wikipedia

  • Desiccant — Silica gel A desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its local vicinity in a moderately well sealed container. Commonly encountered pre packaged desiccants are solids, and work through… …   Wikipedia

  • Desiccation — This article is about the removal of water through chemical or physical means. For the medical condition, see dehydration. For the chemical reaction, see dehydration reaction. For food preservation by dehydration, see drying (food). Desiccation… …   Wikipedia

  • Rust — For other uses, see Rust (disambiguation). Colors of rust …   Wikipedia

  • Colors of chemicals — All chemical compounds have colors, and in some cases these are distinctive or useful for identification.The study of chemical structure by means of energy adsorption and release is generally referred to as spectroscopy. TheoryAll chemical… …   Wikipedia

  • Ethylene oxide — Oxirane redirects here. For oxiranes as a class of molecules, see epoxide. Ethylene oxide …   Wikipedia

  • Color of chemicals — The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. What is seen by the eye is not the color absorbed, but the… …   Wikipedia

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • Concrete degradation — may have various causes. Concrete can be damaged by fire, aggregate expansion, sea water effects, bacterial corrosion, calcium leaching, physical damage and chemical damage (from carbonation, chlorides, sulfates and distilled water). This process …   Wikipedia

  • Dispersion (optics) — This article is about dispersion of waves in optics. For other forms of dispersion, see Dispersion (disambiguation). In a prism, material dispersion (a wavelength dependent refractive index) causes different colors to refract at different angles …   Wikipedia

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