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.
