When using chemical indicators, choose the reagent bottle like this
Under certain medium conditions, the color of the indicator can change, turbidity or precipitation can occur. It is often used to check the acidity and alkalinity of the solution; it is used to indicate the end point of the titration in titration analysis; it is used to check harmful substances in environmental testing. There are many types of indicators, and the selection of reagent bottles should be based on their performance.Glass Media Bottles,Media Culture Bottle,Boro Media Bottle
Indicators are generally divided into adsorption indicators and so on. Various acid-base indicators have different ranges of discoloration, some discolor in acidic solutions, such as methyl orange, methyl red, etc.; some discolor near neutral, such as neutral red, phenol red, etc.; Some are discolored in alkaline solution, such as phenolphthalein, thymolphthalein and so on.
Under normal circumstances, most indicators can be stored in glass bottles,Glass Media Bottles,Media Culture Bottle,Boro Media Bottle, but indicators that have a strong corrosive effect on glass should be stored in plastic reagent bottles; indicators that are easily oxidized, differentiated, and deliquescent by air should be sealed and stored; Indicators that are easily decomposed should be stored in colored reagent bottles and kept in a dark place; they should be stored in cold places because they are easily decomposed by heat and low-boiling solvents; highly toxic indicators should be stored in a safe; and radioactive reagents should be stored in lead tanks.
There are many kinds of chemical indicators used in laboratory experiments, most of which are toxic and dangerous. It is the first task of laboratory personnel to strengthen their management, so as to avoid improper use and endanger the safety of laboratory personnel.Glass Media Bottles,Media Culture Bottle,Boro Media Bottle
Post time: Oct-27-2021
