Let’s learn about reagent bottles together

The reagent bottle is a container specially used in the laboratory to hold various liquid and solid reagents, and the shape is mainly divided into narrow mouth and wide mouth.
Because the reagent bottle is only used for storing reagents at room temperature, it is generally made of soda-lime ordinary glass. In order to ensure a certain strength, the bottle wall is generally thicker. In addition to narrow mouth and wide mouth, there are two kinds of reagent bottles: colorless and brown (brown), with plug and no plug. Among them, those with glass stoppers should have internal frosting treatment process, no matter whether they are thin or wide.
Those without plugs may not be frosted inside, but should be equipped with non-glass plugs of certain specifications, such as rubber stoppers, plastic stoppers, cork stoppers, etc. In recent years, all kinds of practical plastic reagent bottles have come on the market, making such containers colorful.
The specifications of the reagent bottles are expressed in terms of volume, ranging from as small as 30mL and 60mL to as large as several thousand to tens of thousands of milliliters.
Precautions for use：
(1) When the stoppered reagent bottle is not in use, a paper strip should be placed between the stopper and the frosted surface of the bottle mouth to prevent adhesion. As previously mentioned, all reagent vials cannot be used for heating.
(2) The general principle for selecting the required reagent bottles according to the physical and chemical properties of the reagents is: for solid reagents, choose wide-mouth bottles, and liquid reagents – choose narrow-mouth bottles, and use reagents that are easily decomposed or deteriorated when exposed to light. Choose brown bottles for reagents with a low boiling point and volatile – use frosted glass reagent bottles, and use alkaline reagents – use reagent bottles with rubber stoppers, etc. If the reagent has the above-mentioned physical and chemical indicators, the appropriate reagent bottle can be selected according to the above principles.
(3) Some special reagents, such as hydrofluoric acid, cannot be used in any glass reagent bottles, but in plastic bottles.
In addition to the above-mentioned types of container glass instruments, there are also various types of two-necked bottles, three-necked bottles, four-necked bottles, and lower-necked bottles (also known as faucet bottles) according to different requirements when taking and storing liquids.