Three Types of Bottle-top Dispensers
According to the properties of solutions, the bottle-top dispensers are divided into three types.
The first one is the basic one. It is highly applied to the common solutions, such as the non-oxidative but a strong acid/base with a lower concentration, polar organic solvent and the solutions of acid, alkali or salt. H3PO4, HCL, H2SO4, NaOH are frequent here.
The second one is the organic one. It is used for the vast majority of organic solutions and the strong acid with high concentration. Let me list some examples. There are the organic solvents containing fluorine or chlorine, chloroform, peroxide, and some other solvents.
The third one is applicable to HF solutions. The plunger of the bottle-top dispenser is made of pottery and porcelain because HF solution can corrode glass.
The process of moving solutions by the bottle-top dispenser is totally closed, which effectively prevent the solvents’ volatilization, spatter and spill. That is safer than moving solutions by cylinders. We can even transfer the solvents with high density and volatilization in the petrochemical industry.
What’s more, chloroform is usually used as solvents for most plastics. It is often used for experiments in labs. However, it is easy to volatilize and poisonous. Transferring chloroform through the bottle-top dispenser can avoid it because of the closed conditions.