Fractionation continued Liquid dividing fractional distillation head
A sluice type reflux ratio head combined with a jacketed coil condenser having an approximate surface area of 4.0 x 10–2m2. A run-off lip at the bottom of the condenser directs condensed vapour to a weir from which it is either returned to the column or collected. The proportion of liquid returning to the column is adjusted using a GP Rotaflo stopcock. The head is fitted with a pressure equalising tube with vacuum connection, making it an ideal unit for reduced pressure distillations. A size 13 screw-cap is also provided for the insertion of a thermometer (not included). Supplied with screwthread outlets and plastic screwthread connectors.
Description QSH30/42/SC column
Fractional 29/32 distillation head
Cone size to fit
Cone size to fit
receiver 19/26
Cold Finger and Cold Trap Cold finger
Used in conjunction with a QMA1: or QMA2: multiple adapter, this cold finger forms a simple type of stillhead to regulate reflux by water or air flow. Suitable for fractionations not requiring strict control of the reflux ratio. With screwthread outlets and supplied with polypropylene safety tubing connectors.
A general purpose trap which can function as a cold trap by immersing it in a Dewar flask or similar vessel containing refrigerant. The unit may also be used as an absorption trap during Kjeldahl digestions.