{"id":1068,"count":0,"description":"<p>The <strong>becher<\/strong> is perhaps the most widespread instrument used in chemical laboratories.<br \/>It is a cylindrical container mainly for liquids and for creating solutions.<br \/>Since it often also has to be used for decanting the same liquids, it is in most cases fitted with a spout.<\/p>\n<p><\/p>\n<p><img class=\" alignleft size-full wp-image-55\" alt=\"beaker for chemical laboratory\" height=\"403\" src=\"http:\/\/cromosoma.eu\/wp-content\/uploads\/2017\/02\/becher-da-laboratorio. jpg\" style=\"float: left;margin-left: 5px;margin-right: 5px\" title=\"beaker or laboratory beaker\" width=\"302\" \/>The term <strong>chemical beaker<\/strong> is said to derive from the German word Becher, meaning cup or cylindrical container.<br \/>Germany is still one of the countries specialising in the production of high-quality laboratory glassware. It is therefore not surprising that the linguistic origin of such a common instrument comes from this geographical area.<br \/>Some have speculated that there was a chemist named Becher who 'invented' it, but there is no evidence of this origin.<br \/>It can also sometimes be found written as Beker, of Anglo-Saxon derivation. But we believe that this usage is improper.<br \/>In the laboratory it can be safely called by the Italian definition of <strong>bicchiere<\/strong>.<\/p>\n<h2>Pyrex glass beaker<\/h2>.\n<p>Generally it is made of <strong>borosilicate glass<\/strong>, and in particular Pyrex glass, which allows it to be used even at high temperatures. The glass also offers the highest level of transparency and ease of cleaning.<\/p>\n<h2>Beckers in polypropylene PP and polymethylpentene PMP<\/h2>.\n<p>Because of their unbreakable properties, beakers made of various chemical-resistant plastics are also popular today.<br \/>The most commonly used are <strong>Polypropylene<\/strong> PP and <strong>Polymethylpentene<\/strong> PMP or TPX.<\/p>\n<h2>Quartz beakers<\/h2>\n<p>There are also beakers made of quartz for use at very high temperatures. The properties of this material are maximum temperature and acid resistance, as well as a very wide optical frequency.<\/p>\n<h2>Graduated beaker with spout<\/h2>\n<p>The beakers are cylindrical in shape and have a flat bottom, with bevelled edges to facilitate cleaning and avoid residual material in the corners.<br \/>They are made in many heights and diameters to suit all capacities.<br \/>They are generally graduated to facilitate measuring quantities. Due to the rather large diameter, however, it is difficult for the accuracy to be high.<br \/>The graduation is only used as an indication.<br \/>The graduation can, however, be standard for the most common uses, embossed for its longer life without deterioration, or made of a special blue acid-proof material for use with corrosive substances.<\/p>\n<p><\/p>","link":"https:\/\/www.colaver.it\/en\/laboratory-consumable\/laboratory-beakers\/","name":"Laboratory beakers and Chemistry beakers","slug":"laboratory-beakers","taxonomy":"product_cat","parent":1066,"meta":[],"menu_order":0,"_links":{"self":[{"href":"https:\/\/www.colaver.it\/en\/wp-json\/wp\/v2\/product_cat\/1068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.colaver.it\/en\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/www.colaver.it\/en\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/www.colaver.it\/en\/wp-json\/wp\/v2\/product_cat\/1066"}],"wp:post_type":[{"href":"https:\/\/www.colaver.it\/en\/wp-json\/wp\/v2\/product?product_cat=1068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}