Potassium chloride containers, labelling

Small Quantities. Wear eye protection, nitrile rubber gloves, and a laboratory coat. Work in the fume hood. Cover the potassium amide with toluene or kerosene and add 95% ethanol slowly while stirring.7 When reaction is complete, the solution should be placed in a separate labeled container for disposal by burning. Alternatively, small portions of potassium amide can be stirred into excess solid ammonium chloride in the fume hood. The resulting mixture is slowly added to a pail of cold water and the solution washed into the drain.8 9... 

Labeling Indicate the name and quantity of any added substance ) if the material contains such substances. Identification A 1 20 aqueous solution gives positive tests for Potassium and for Chloride, Appendix IHA. 

Precautions and storage Hydrogen chloride should be stored in a cool, dry, well-ventilated area in tightly sealed containers and with a proper label. Containers of hydrogen chloride should be protected from physical damage and should be stored separately from hydroxides, amines, alkalis, or metals, such as copper, brass, zinc, potassium, and sodium. ... 

D) Action of Alcoholic Alkali. Use alcoholic potassium hydroxide solution containing 30 g of the solid dissolved in 90 ml of 90 per cent methyl or ethyl alcohol. Place 3 ml of the alkali solution in each of three tubes. Add to seperate respective tubes 1 ml of n-amyl bromide, amyl bromide, and benzyl chloride. Shake gently for a minute, cork, label each tube, and set aside for the next laboratory period. If it is desired to observe the rate at which the halides react, examine after 30 minutes the extent of the reaction as judged by the amount of potassium halide formed. After 24 hours add 3 ml of water, shake, and allow to separate. Note the odor. With a clean dropper or pipette withdraw two drops from each and test with bromine water and dilute permanganate. n -Amyl bromide yields a considerable amoimt of ether, but little olefin. Benzyl chloride yields entirely carbinol. Put the contents of the three tubes into bottles provided by the instructor. 

---