What are the classifications of reagent bottles?
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Reagent bottles or glass bottles or plastic bottles containing reagents can be classified in various ways according to color, shape and purpose.
Glass, plastic; glass stopper, rubber stopper; wide mouth, thin mouth; brown, transparent; ground, no ground and other classification methods.
Hydrofluoric acid should be stored in plastic bottles, other reagents generally use glass bottles.[ Lab Reagent Bottle,Reagent Bottle Lab,Reagent Test Bottle,Reagent Media Bottle,Glass Reagent Bottle ]
Alkaline substances such as sodium hydroxide and water glass should be rubber plugs instead of glass plugs. For organic solvents such as benzene and toluene, glass stoppers should not be used with rubber stoppers.[ Lab Reagent Bottle,Reagent Bottle Lab,Reagent Test Bottle,Reagent Media Bottle,Glass Reagent Bottle ]
Wide mouth bottles are used to hold solid reagents, and narrow mouth bottles are used to hold liquid reagents. Liquid bromine is stored in a narrow-necked bottle, water is added to the liquid surface to make it “water-sealed”, and the mouth of the bottle is sealed with wax. A small amount of white phosphorus should be stored in water.
Reagents that are easily decomposed or deteriorated by light are generally contained in brown bottles, such as nitric acid, silver nitrate, and chlorine water. Keep in a cool and dark place. Other colorless bottles are generally used.
Ground stopper bottle (the inside of the bottle mouth is frosted design) can keep the seal and prevent the reagent from absorbing moisture and concentration changes. The bottle with a ground dropper is called a dropper. Reagents that deteriorate due to absorption of carbon dioxide or water vapor should be sealed and stored (such as NaOH, lime water, bleaching powder, water glass, Na2O2, etc.). Concentrated hydrochloric acid, ammonia, iodine, benzene, toluene and other low-boiling organic substances are stored in the bottle with a plastic cap and sealed in a cool and dark place.
Among the reagents that are easy to be oxidized and deteriorated, active potassium, sodium, calcium, etc. are stored in kerosene; potassium iodide, ferrous sulfide, sodium sulfate and other solids are usually stored without storing the solution; when using ferrous sulfate or ferrous oxide solution Put a small amount of iron powder or iron nails.
Most laboratories in the world use blue cap reagent bottles.
Post time: Oct-20-2021
