User:Karlena L. Brown/Notebook/PVOH Research/2013/02/04: Difference between revisions
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==Important 1,2 Dichloroethane and Glutaraldehyde Safety== | ==Important 1,2 Dichloroethane and Glutaraldehyde Safety== | ||
* | * Glutaldehyde is toxic colorless liquid '''(MW: 100.12 g / mole)''' | ||
* Avoid all | * 1,2 Dichloroethane is a toxic colorless flammable liquid '''(MW: 98.96 g / mole)''' | ||
* | * Avoid all glutaldehyde and 1,2 dichloroethane skin contact by wearing gloves and googles | ||
* When in use, | * Glutaldehyde should be kept in the freezer when not in use | ||
* If spilled, wipe up | * 1,2 Dichloroethane should be kept in a flammable cabinet when not in use | ||
* Keep all spills of | * When in use, both glutaldehyde and 1,2 dichloroethane should be kept in the fume hood | ||
* Wash hands after removing gloves that were in contact with | * 1,2 Dichloroethane should be capped at all times when not in use to inhibit inhalation and free floating volatile particles in the air | ||
* Keep the glutaldehyde vial in a beaker so that it does not spill | |||
* Keep anything and everything containing some form of 1,2 dichloroethane in the hood and allow all residue to evaporate off before washing | |||
* If spilled, wipe up glutaldehyde with paper towel while wearing gloves | |||
* If spilled, use a spill kit towel to soak up excess 1,2 dichloroethane. Allow some of the residual essence of 1,2 dichloroethane to evaporate; then use acetone to wipe over area contaminated with 1,2 dichloroethane. | |||
* Keep all spills of glutaldehyde and 1,2 dichloroethane contained in the fume hood | |||
* Wash hands after removing gloves that were in contact with glutaldehyde or 1,2 dichloroethane | |||
==Clay Exchanged Solutions & Vacuum Filtration Procedures== | ==Clay Exchanged Solutions & Vacuum Filtration Procedures== |
Revision as of 21:42, 10 February 2013
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OBJECTIVESACCIDENTALLY PLACED THIS ENTRY ON THE FEBRUARY 4th; HOWEVER, THIS ENTRY SHOULD BE UNDER FEBRUARY 6th. THANK YOU.
90:10 PVOH Clay Microsphere Preparations*Reaction should be carried out using a reflux condenser and a thermostatic water bath of 55°C.
* 1,2-dichloroethane * acetone * hot water * cold water * methanol
* The following procedure was adapted from the article Poly(vinyl alcohol) microspheres with pH- and thermosensitive properties as temperature-controlled drug delivery [1]
Important 1,2 Dichloroethane and Glutaraldehyde Safety
Clay Exchanged Solutions & Vacuum Filtration ProceduresThe clays being filtered are the clays that were prepared on 2/1/13 Setup of a vacuum filtration system: * Clean 250mL Erlenmeyer Filter Flask * Large Buchner Funnel * Whatman #42 Filter Paper * Long Secure Rubber Hose
NotesACCIDENTALLY PLACED THIS ENTRY ON THE FEBRUARY 4th; HOWEVER, THIS ENTRY SHOULD BE UNDER FEBRUARY 6th. THANK YOU.
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