CL - definizione. Che cos'è CL
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Cosa (chi) è CL - definizione

CHEMICAL ELEMENT WITH SYMBOL CL AND ATOMIC NUMBER 17
Cl; Chloro; Chlorine manufacturing process; Chlorine gas; Element 17; Muriaticum; Chlorene; Bertholite; Chlorine compounds; Hydrocarbons, chlorinated; Dephlogisticated marine acid; E925; Making of Chlorine; Chlroine; Cl2; Clorine; Chlor; Chlorine-iron fire; Oxymuriatic gas; Oxymuriatic acid; Dichlorine; Cl (element); User:Double sharp/Chlorine; Chlorine atom; Klorine; Chloreen; Kloreen; Cℓ₂; Cl₂; Biological roles of chlorine; Chlorine Gas; Compounds of chlorine; History of chlorine; Properties of chlorine
  • Membrane cell process for chloralkali production
  • The chlorate ion
  • The chloride ion
  • Chlorine "attack" on an acetal resin plumbing joint resulting from a fractured acetal joint in a water supply system which started at an [[injection molding]] defect in the joint and slowly grew until the part failed; the fracture surface shows iron and calcium salts that were deposited in the leaking joint from the water supply before failure and are the indirect result of the chlorine attack
  • date=March 2022}}
  • acrylic glass]]
  • The chlorite ion
  • Structure of solid deuterium chloride, with D···Cl hydrogen bonds
  • Structure of [[dichlorine heptoxide]], Cl<sub>2</sub>O<sub>7</sub>, the most stable of the chlorine oxides
  • Solid chlorine at −150&nbsp;°C
  • The hypochlorite ion
  • Liquid Pool Chlorine
  • Liquid chlorine analysis
  • Hydrated [[nickel(II) chloride]], NiCl<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>
  • [[Carl Wilhelm Scheele]], discoverer of chlorine
  • The perchlorate ion
  • Suggested mechanism for the chlorination of a carboxylic acid by phosphorus pentachloride to form an [[acyl chloride]]
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cl         
cl is a written abbreviation for centilitre
.
...two 75cl bottles of quality wine.
cl         
<networking> The country code for Chile. (1999-01-27)
CL         
Conversion Layer (Reference: HiperLAN/2, UMTS)

Wikipedia

Chlorine

Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine.

Chlorine played an important role in the experiments conducted by medieval alchemists, which commonly involved the heating of chloride salts like ammonium chloride (sal ammoniac) and sodium chloride (common salt), producing various chemical substances containing chlorine such as hydrogen chloride, mercury(II) chloride (corrosive sublimate), and hydrochloric acid (in the form of aqua regia). However, the nature of free chlorine gas as a separate substance was only recognised around 1630 by Jan Baptist van Helmont. Carl Wilhelm Scheele wrote a description of chlorine gas in 1774, supposing it to be an oxide of a new element. In 1809, chemists suggested that the gas might be a pure element, and this was confirmed by Sir Humphry Davy in 1810, who named it after the Ancient Greek χλωρός (khlōrós, "pale green") because of its colour.

Because of its great reactivity, all chlorine in the Earth's crust is in the form of ionic chloride compounds, which includes table salt. It is the second-most abundant halogen (after fluorine) and twenty-first most abundant chemical element in Earth's crust. These crustal deposits are nevertheless dwarfed by the huge reserves of chloride in seawater.

Elemental chlorine is commercially produced from brine by electrolysis, predominantly in the chlor-alkali process. The high oxidising potential of elemental chlorine led to the development of commercial bleaches and disinfectants, and a reagent for many processes in the chemical industry. Chlorine is used in the manufacture of a wide range of consumer products, about two-thirds of them organic chemicals such as polyvinyl chloride (PVC), many intermediates for the production of plastics, and other end products which do not contain the element. As a common disinfectant, elemental chlorine and chlorine-generating compounds are used more directly in swimming pools to keep them sanitary. Elemental chlorine at high concentration is extremely dangerous, and poisonous to most living organisms. As a chemical warfare agent, chlorine was first used in World War I as a poison gas weapon.

In the form of chloride ions, chlorine is necessary to all known species of life. Other types of chlorine compounds are rare in living organisms, and artificially produced chlorinated organics range from inert to toxic. In the upper atmosphere, chlorine-containing organic molecules such as chlorofluorocarbons have been implicated in ozone depletion. Small quantities of elemental chlorine are generated by oxidation of chloride ions in neutrophils as part of an immune system response against bacteria.

Esempi dal corpus di testo per CL
1. One bottle (33 cl) of beer, or a small glass (12 cl) of wine counts as a single serving.
2. The adjustment will be carried out by sticking an extra second into atomic cl...
3. And until the highly cl conference that he was assuming unlimited powers.
4. The CL–125 plane sank at about '.40 a.m., authorities said.
5. However, this will not send shockwaves through Europe – the game and especially Barca were not up top CL standard.