Stirring rod

A glass rod is a common laboratory instrument that is used for stirring of mostly organic or slightly reactive mixtures. He is universally used in science laboratories in secondary schools, high schools, universities or institutes. The glass rod is characterized above all by its dirt-repellent ability, its inertness with other materials and its low price. However, he is a wear agent, since in most cases after a few tries breaks. It may vary in length and wide - the main feature is the complete composition of glass.

Glass rods are available in different lengths and thicknesses. On the one hand refers glass rods in the piece and assembled his desired lengths with a glass cutter. The sharp break points that arise when cutting, are sometimes the cause of cuts to hands. Therefore, to round the edges by melting. For this, the end of the glass rod is held against the inclined flame and rotating heated so long to get to the breaking point just start soft.

On the other hand, there are special prefabricated parts, for example, have a fused cavity intended to protect against bumping and foaming in the liquid ( immersion heater ).

As Peterson Jones or even Peterson - hook is referred to a specially shaped lab - glass rod. The basic form is at one end of a thin, curved hook-shaped tip and at the other end of a flattened so-called elephant foot.

Peterson -Jones - hook is available in various lengths and sizes. They are preferably used as scratch and Schabwerkzeuge in chemical laboratories.