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“Your Safer Source for Science” Chemical Storage Seven-Step Plan to Clean Up Your Chemical Storage Area, continued
corroded. Better yet, replace the “adjustable” shelves with permanent shelves that will never collapse. Put “lips” on the shelves to prevent bottle roll-off. Inspect the rest of the chemical storage area. Do any other improve- ments need to be made?
STEP 6: Organize Chemicals by Compatible Families
Now that the “devil” chemicals have been bagged and canned, and the storage area has been improved, it’s time to return the chemicals you want to keep back into the chemical storage area. Before these chemi- cals are moved back into the chemical storage area, you must decide how they are to be stored and organized. In the past, they may have been stored alphabetically. This is wrong! Chemicals should be stored and organized by compatible chemical fami- lies. Pages 224–233 describe how to properly store laboratory chemicals. Thousands of institutions across the United States have adopted the Flinn Suggested Chemical Storage Patterns for the storage of labora- tory chemicals. Many states and insurance companies recommend the Flinn Suggested Chemical Storage Patterns as the preferred method of chemical storage.
First, separate your chemicals into compat- ible families by dividing the chemicals into inorganic and organic families, then subdividing them further into their unique compatible chemical families. For instance, oxidizers are broken into five different fami- lies. Nitrates are stored in Inorganic #3, except ammonium nitrate, which is isolated. Chromates and permanganates are stored in Inorganic #8. Chlorates and perchlorates are stored in Inorganic #6, and nitric acid is stored separately in a dedicated acid cabinet.
Before the chemicals are moved back into the chemical storage area it is very helpful to label each chemical bottle with the appro- priate compatible chemical family storage number. It is also helpful to label each shelf with the compatible family number. Labeling both the chemical shelving and the chemical bottles with the appropriate Flinn compat- ible chemical family number will allow you to easily locate and return any chemical to its appropriate storage location. Without this labeling, you’ll soon find your chemical storage area in disarray. You may make your own bottle and shelf labels or purchase pre- printed labels from Flinn Scientific, Inc. (All Flinn chemicals are already labeled with this information.)
STEP 7: Chemical Disposal— Your Options
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Now that your chemicals have been prop- erly bagged, canned, labeled and placed back into the chemical storage area using Flinn’s Suggested Compatible Family Shelf Storage Patterns, your task is now complete ...almost.
As you walk out of the chemical stor- age area feeling good about what you have accomplished, you soon realize you still have all of those chemicals that need to be disposed of. What are your options for chem- ical disposal? Flinn has devoted 30 pages in this Catalog/Reference Manual to disposal procedures. First read about your options on pages 234–240 and if you want to dispose of small quantities of chemicals, refer to the disposal procedures found on pages 241–260.
We hope our seven-step plan to clean up your chemical storage area has given you the direction and courage needed to improve the safety profile of your school. It’s no small task to clean up a chemical storage area, but with a well defined plan, this job can be done.
Good luck! If you have any questions, please feel free to call us. We’re here to help!
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See pages 140–141 for details!