Glass broken, disposal

Dispose of broken glass, unused chemicals, and products of reactions only as directed by your teacher. 

In addition to being harmful to the individual, many chemicals are hazardous to the environment, so waste chemicals must not be put down the sink or into the rubbish bins unless this is stated to be safe. Waste solvent and reagents must be put into appropriate waste bottles. Chlorinated and nonchlorinated solvents are usually kept separately and then sent for disposal by external contractors. Broken glass or needles and scalpels are to be disposed of in sharps containers. 

Lecture bottles of HCI and CO/CH4 gas must be strapped or chained securely to the laboratory bench. Work on a vacuum system requires preliminary review of procedures and careful execution in order to avoid damage to the apparatus and possible injury from broken glass in addition the liquid nitrogen used for cold traps must be handled properly (see Appendix C). Safety glasses must be worn. Benzoyl chloride, which is a potent lach-rymator, and other waste chemicals must be disposed of properly. 

Caution must be taken in the proper handling and disposal of sharp objects that could puncture the skin broken glass, jagged metals, razor blades, hypodermic or other needles. Safe disposal requires a container that is impervious to puncture and can be incinerated. 

Don t use chipped or cracked glassware and examine the equipment for star cracks - it may break under very slight strains and should be disposed of in the broken glassware bin. All laboratories will have a waste bin dedicated to broken glass. Never put broken glass into other bins. 

Dispose of broken glass thoroughly and with great care - use disposable paper towels, tongs or dust-pan and brush and thick gloves. Always put pieces of broken glass in the correct bin. 

Do not pick up broken glass with your bare hands. Place broken glass in a specially designated disposal container. (Rule applies)... 

Dispose of all sharps (broken glass and other contaminated sharp objects) and other contaminated materials (biological and chemical) in special containers as directed by your instructor. 

Dispose of chemicals and other materials as directed by your teacher. Place broken glass and solid substances in the proper containers. Never discard materials in the sink. 

Waste Disposal In laboratories two types of wastes (i.e. liquid and solid) are often encountered. Arrangements have to be made for disposal of these wastes. For disposal of liquid wastes use of lead pipes or earthen ware pipes is considered most suitable. However care be taken to avoid the flow of solids like pieces of filter paper, cork, broken glass pieces etc. through these pipes, otherwise these pipes get chocked. For disposal of such solid wastes metal boxes or wooden boxes be provided. Such boxes be placed in the comers of the laboratory and students be asked to put all solid wastes in these boxes. Such waste boxes can even be placed under the sinks as shown in Fig. 

Do not put broken glass, pipette tips or needles in the normal waste - use the SHARPS disposal bins provided. 

Special disposal considerations required chemicals, broken glass, living organisms such as bacterial cultures, protists, etc. Plan to dispose of wastes as directed by your teacher. Ask your teacher how to dispose of laboratory materials... 

Dispose of broken glass in the trash receptacle so designated. 

Allow the tube to cool and then break in the centre of the capillary. You now have two micropipettes. If the capillary is too long, break it near to each end and immediately dispose of the fine waste glass into the broken-glass bin. Do not leave the waste glass on the laboratory bench. 

However, glass as litter remains a serious problem. General education together with adequate and proper disposal facilities will undoubtedly reduce this hazard, but broken glass must still cause concern. Glass, however, has advantages over most other materials as it can be readily cleaned and reused, or recycled via bottle banks as cullet. In the latter case, other than the risk of admixtures (colours and glass types) no deterioration has been reported in properties. 

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