Laboratory glassware

• Collection of dirty equipment in designated buckets. If a bucket is full, put it in the dishwasher/ 
• Collection of dirty glassware in the designated buckets in the lab. 
• Collection of reusable falcons in the designated buckets. Reusing falcons saves a lot of plastic waste -  remember that anything you put in a beaker could also be put in a dishwasher-clean falcon. Not every falcon is suitable for repurposing - potentially harmful chemicals may impact later experiments, and remnants of living bacteria cultures need autoclaving!
• After the dishwasher, put everything in the oven at 100 °C. Rinse media bottles with MQwater before use, as there may be remnants of soap that may interfere with bacteria growth. 

The diswasher can be found downstairs in room 26.43.U1.025. When using the dishwasher, do NOT forget to indicate yourself/ your lab as the user. 

If you are not using the lab dish washer follow these guidelines.

Remember: Glassware that has been rinsed with flammable organic solvents (acetone, isopropanol, ethyl acetate etc.) should not be placed directly in the oven!

• Separatory funnels Promptly after use, clean right away by rinsing with distilled water and acetone or other appropriate solvent (Ethanol, Ethylacetate). Disassemble the stopcock and leave to dry in air. 
• Reagent tubes for column chromatograph Promptly after use, empty out the contents with your sample and KOH/iPrOH bath, rinse with distilled water, then HCl bath, rinse thoroughly with water and dry in oven. Do not block the racks for days and leave your samples dry out in the tubes/racks!
• General glassware REMOVE GREASE WITH ETHYLACEATE OR HEXANE FIRST! Then collect in bucket next to sink. Place in KOH bath then rinse thoroughly with water and dry in oven. Disassemble stopcocks from Schlenk flasks etc. and wipe the grease off with ethyl acetate prior to placing in KOH bath. If the glassware looks matt and/or has some white residue after drying, place in HCl bath.
• NMR tubes Difficult cleaning problems might arise if tubes are left with samples in them for a long period of time. So clean your tubes promptly! You may keep the content of the NMR tube (your sample) in an Eppendorf tube in case you need it again. Sample degradation or precipitation can cause material to adhere to the inner walls of the tube. Rinsing the tube doesn't always remove this adhered material. Agitation in an Ultrasonic bath with an appropriate solvent can also help dislodge stubborn sample residues. Remember to clean/whipe your tubes from the outside as well. When cleaning your NMR tubes, rinse the tube with acetone a couple of times and place it in KOH/iPrOH bath (make sure the tubes are completely filled by using a Pasteur pipette). Rinse with distilled water, then HCl bath (again completely fill the tube), rinse thoroughly with water, then with acetone and dry in oven. Whoever has more than 20 dirty NMR tube son their bench has to bring a cake.
• NMR tube lids Stir the lids first with water, then isopropanol and then ethyl acetate or acetone for a while in an screw lid jar. Then leave to dry on a paper towel.
• Metal spatulas Rinse with water then wipe with an acetone or ethanol soaked paper towel. Do not place in HCl bath!
• Rubber-septa If they are very contaminated wipe them first with an ethanol or ethyl actetate soaked paper towel then soak in isopropanol for a couple of hours. Leave them to dry on a paper towel.
• Plastic items and magnetic stir bars Collect in bucket next to sink. Place in KOH bath, then rinse thoroughly with distilled water and dry on paper towel.