What is a wash bottles used for in a lab
Wash bottles is a container for rinsing reagents, precipitating and washing vessels by injecting a fine stream of water. It is mainly used for cleaning instruments, equipment, devices and so on. There are various styles and specifications of stereotyped products. It is also commonly used in laboratories with a double-hole stopper and a flat-bottomed flask or conical flask with an air inlet tube and a liquid outlet tube.
Wash bottles is a kind of lab squeeze bottles or containers used for cleaning solution in chemical laboratory, and equipped with a device for launching fine liquid flow.
There are two types of wash bottles commonly used: blow-out type and squeeze type. The blow-out type consists of a flat-bottomed glass flask and a short blowing tube and a long outlet pipe; the squeeze type consists of a plastic wash bottle with a fine mouth and an outlet pipe at the mouth of the flask. Wash bottles are used for quantitative transfer of solutions and washing and transfer of precipitates.
1. Check whether the plastic wash bottles is leaking before use.
The specific operation is: fill two-thirds of the bottle of water in the plastic wash bottle, screw the plastic cap, turn it upside down (bottle mouth down), observe whether the plastic wash bottles leaks. Repeat the test twice to check whether water leakage, if the plastic wash bottle no water leakage, that is, the nottle does not leak. The wash bottles can be used only if it is not leaking after inspection. If a small amount of water is sprayed out of the nozzle, it is normal.
2. To ensure the concentration of the detergent used, use a beaker to adjust it in advance and transfer all the washing solution to the plastic wash bottles. Transfer with a stirring bar to divert the flow. The method is to put one end of the stirring bar against the inner wall of the neck of the plastic wash bottles, taking care not to let the other parts of the stirring bar touch the mouth of the plastic wash bottle to prevent the liquid from flowing to the outer wall of the plastic washing bottle.
3. When the liquid level added to the plastic wash bottles is about 4 cm away from the cap (about two-thirds of the position), screw the cap tightly. Remember, do not shake the bottle at this time, because the liquid inside may be corrosive, shaking at a large degree, the nozzle may have liquid sprayed out.
4.When cleaning equipment, if there is a corrosive solution, please make other safety preparations, such as gloves to avoid splashing the solution on your hands. To hold the place to be cleaned, hand grip light pressure on the bottle, the solution sprayed out, hands relaxed, the wash bottle will recovery.