Which reagents need to be stored in brown reagent bottles
Chemical reagents are divided into general reagent, high purity reagent, analytical reagent, instrumental analysis reagent, clinical diagnostic reagent, biochemical reagent, inorganic ion chromogenic reagent, etc. [ Reagent Bottle Lab,Chemical Reagent Glass Bottles,Reagent Bottle Glass,Wide Mouth Reagent Bottles ] Different reagents have different characteristics. We often see brown reagent bottles in the storage of reagents, this kind of bottle is mainly used to store what reagents?
Different from ordinary transparent reagent bottles, brown reagent bottles are mainly used to store chemical reagents that are easy to decompose, volatilize, sublimate or react with light. [ Reagent Bottle Lab,Chemical Reagent Glass Bottles,Reagent Bottle Glass,Wide Mouth Reagent Bottles ] Brown reagent bottles can prevent visible light irradiation and prevent reagent decomposition and deterioration. They are commonly used to store the following reagents:[ Reagent Bottle Lab,Chemical Reagent Glass Bottles,Reagent Bottle Glass,Wide Mouth Reagent Bottles ]
Iodine: nonmetallic element, element symbol I, element 53 of periodic table, series ⅶ A, halogen element. Iodine units sublimate easily. Iodine vapors themselves have an irritating smell and are toxic. They sublimate easily when exposed to the sun, so keep them in a sun-proof brown bottle.
Silver nitrate: Silver nitrate becomes gray black when it meets organic matter and resolves to silver. Pure silver nitrate is photostable, but its aqueous and solid solutions are often stored in brown reagent bottles because of the general lack of purity of the product.
Chlorine water: chlorine water will decompose when exposed to light/heat, and black bottle is easy to absorb heat, which will cause chlorine water to decompose, brown bottle can avoid light and prevent heat absorption, so it is best to use brown bottle.
Concentrated nitric acid: nitric acid is a strong oxidizing, corrosive acid, concentrated nitric acid is not stable, in light or heat will decompose and release nitrogen dioxide, decomposition of nitrogen dioxide dissolved in nitric acid, so that the appearance with light yellow, need to avoid light preservation.
The above are common chemical reagents that are easy to decompose or react with light. They all need to be stored in brown reagent bottles and sealed in a cold dark place to ensure the stability of reagents.
Post time: Nov-02-2021
