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Glass funnels of Duran have all established Duran properties, as chemical resistance and high temperature change reliability. These funnels are suitable for applications with hot and/or aggressive media. All products of Duran, standard funnels, as well as separating funnels are also available with chalk-soda-glass.
Glass funnels of Rettberg are separated into filling funnels, dosing funnels and separatinf funnels. All the funnels offered by Rettberg are manufactured out of Duran borosolicate glass.
Polypropylene (PP) funnels of IDL offer extraordinary high chemical resistance against acids and basics as well as versus all common solvents, which are capable to corrode glass and metall funnels. Furthermore these pulver funnels are transparent and suited for funneling liquid and pulverulant reagents in reaction flasks, especially to charge multi-neck flask during the reaction. Usage for contact with food corresponding enactment (EG) Nr. 10/2011 is also possible with funnels of IDL.
All stainless steal funnels produced by Bochem are made out of stainless steal. These funnels are especially characerized by high temperature and chemical reliablitiy versus many organic solvents. These properties allow the use of Bochem funnels in various processes like food industry.