The Classification of Bottle-top Dispenser

Bottle-top dispensers are mainly divided into three types: basic type, organic type, and hydrofluoric acid type.

The basic type is suitable for a wide range of reagents, including general acid-base solutions, low concentration of non-oxidized strong acid-base, and polar organic solvents (excluding non-polar organic solvents and halogenated hydrocarbons), such as H3PO4, HCl, H2SO4, NaOH, NaCl, etc. and has a high-pressure resistance of 500 Mbar, a high viscosity resistance of 500 mm2/s, high-temperature resistance of 40, and a high density of 2.2 g/cm3.

Organic type is suitable for a wide range of organic solvents and high concentrations of strong acid solutions, such as chlorine-containing fluorine-containing organic solvents, trifluoroacetic acid, tetrahydrofuran, peroxide, chloroform, HNO3, etc., and has a high-pressure resistance of 500 Mbar, a high viscosity resistance of 500 mm2/s, and a high liquid density of 2.2 g/cm3.

Hydrofluoric acid type is only suitable for HF solution. Because HF corrodes glass, the piston of the distributor is a ceramic piston, and the suitable reagent bottle should be plastic material with high pressure of 500 Mbar, solution with high viscosity of 500 mm2/s, and with the high liquid density of 3.8 g/cm3.