{"id":36815,"date":"2022-02-07T12:43:03","date_gmt":"2022-02-07T12:43:03","guid":{"rendered":"https:\/\/www.alquera.com\/?post_type=product&p=36815"},"modified":"2026-03-26T12:39:20","modified_gmt":"2026-03-26T12:39:20","slug":"matraz-aforado","status":"publish","type":"product","link":"https:\/\/www.alquera.com\/en\/matraz-aforado\/","title":{"rendered":"Matraz Aforado con Tap\u00f3n de Pl\u00e1stico – 2 UDS"},"content":{"rendered":"
Made of high quality borosilicate glass 3.3. Designed according to ISO 1042, DIN 12664 and calibrated \"to contain\" (TC, In). Each flask has its batch number printed on the glass.<\/p>\n
BOROSILICATE MATERIAL 3.3<\/h2>\n
Borosilicate glass 3.3 is a glass with minimal silica content. It is practically free of magnesium, lime and zinc, and \ncontains only traces of heavy metals. \nChemical composition:<\/strong> \n81% by weight of SiO213, \n0% by weight of B2O3 \n4% by weight of Na2O \nThermal properties: \nCoefficient of linear expansion: 32,5 x10-7 \u00ba C \nMaximum working temperature : 515 \u00ba C \nAnnealing temperature: 565 \u00ba C \nSoftening temperature: 820 \u00ba C \nSpecific heat: 0.2 Thermal conductivity (cal\/cm3 \/ \u00ba C \/ sec): 0.0027 \nChemical Resistance: This glass is highly resistant to water, neutral and acidic solutions, concentrated acids, and \ntheir mixtures, as well as to chloride, bromine, iodine, and organic solvents. Even during long periods of exposure \nand at temperatures above 100\u00b0C, its chemical resistance exceeds that of most metals and other materials. \nIt can withstand repeated dry and wet sterilisation without surface deterioration and consequent \ncontamination. Resistant to attack by various chemicals. Only hydrofluoric acid, very strong phosphoric acid and \nhot and alkaline solutions with increasing concentration and temperature, attack more and more the surface \nglass<\/p>","protected":false},"excerpt":{"rendered":"