Rubber policeman

en.wikipedia.org/wiki/Rubber_policeman

A rubber policeman is a hand-held flexible natural-rubber scraper attached to a glass rod used in chemical ... They are not the same as rubber scrapers. Rubber policemen are also used in biological ...

United Scientific GRPL06 Glass Stirring Rods with Pre-Assembled ...

www.amazon.com/United-Scientific-GRPL06-Pre-Assembled-Policeman/dp/B00ES3UBBI

United Scientific GRPL06 Glass Stirring Rods with Pre-Assembled Rubber Policeman, ... In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or .... American Educational Rubber Policeman, 3/16" Diameter ... Not sure if they can be autoclaved, but traditional clean-up is easy.

Cole Parmer Glass Stir Rods with Rubber Policeman 10 12 pk from ...

www.coleparmer.com/Product/Cole_Parmer_Glass_Stir_Rods_with_Rubber_Policeman_10_12_pk/EW-06369-56

Glass stir rods are manufactured with soft borosilicate glass with both ends rounded. They come with a pre-assembled, removable rubber policeman for ...

Glass Stir Rod w/Pre-assembled Rubber Policeman 6 Inch (150mm)

www.sciencelabsupplies.com/Glass_Stir_Rod_w-Pre-assembeled_Rubber_Policeman_6.html

... we are not liable. Again they are not for or on Human / Animal use / testing. ... Glass Stir Rod 6 Inch w/Pre-assembled Rubber Policeman. 6 Inch (150mm ...

Glass Stirring Rod: Healthcare, Lab & Life Science | eBay

www.ebay.com/bhp/glass-stirring-rod

Glass Stir Stirring Rod with Rubber Policeman Set of 4 - 6, 8, 10 & 12 Inch. $10.45. Buy It Now ... sold are not toys. They are for educational / laboratory use onl.

AP Chem Lab: Equipment Flashcards

www.flashcardmachine.com/ap-chemlabequipment.html

Jan 21, 2013 ... Beaker: Glass or plastic; common sizes are 50-mL, 100-mL, 250-mL, 400-mL; .... These days, they just contain alcohol that's been dyed red. ... Stirring rod and rubber policeman: Glass with rubber sleeve; used to stir, assist in ...

Q4_Test_Epic Cell based SS.qxd - Corning

csmedia2.corning.com/LifeSciences/Media/pdf/glass_care_safe_handling_RG_CI_101_REV2.pdf

They are not explosion proof and should not be used to heat or stir volatile or ... Mixing and Stirring. Use a rubber policeman on glass or metal stirring rods, or.

Recrystallization - Wired Chemist

www.wiredchemist.com/chemistry/instructional/laboratory-tutorials/recrystallization

Recrystallization works only when the proper solvent is used. ... the impurities are insoluble at a high temperature because they will remain solid in the boiling ... Agitate the crystals with a fire polished glass-stirring rod before pouring the ... filtrate to rinse the beaker or use a rubber policeman on the end of your stirring rod...

Stirring Rods, Magnetic Bars, and Mixers - EMS

www.emsdiasum.com/microscopy/products/equipment/stirers.aspx

Laboratoy stirrers, stir bars, and bar retrievers from Electron Microscopy Sciences . ... Polypropylene Stirring Bar Retrievers: They are ideal for use with all stirring bars. The entire retriever is totally ... Glass rods are 5mm diameter, and come in three lengths. Policeman is rubber cover to fit 5mm rods above. The sealed end is ...

Lab Connections :: Glassware :: Stirring Rods - LabCon USA

www.labconusa.com/Stirring_Rods-c-83.html

THEY ARE FOR LABORATORY / EDUCATIONAL USE ONLY. THEY ... Glass Stir Rods 10" pk of 12 ... Glass Stir Rod w/Pre-assembeled Rubber Policeman 6".

Helpful Resources

What is a glass stirring rod and a rubber policeman and how are ...

www.answers.com

They are often made from rubber, but plastic ones can also be found. ... Glass stirring rods are often used in chemistry because they are mostly inert (with the ...

What are the uses of a stirring rod and a rubber policeman

www.answers.com

A stirring rod is used in chemistry primarily to stir aqueous solutions, so liquid ... Glass stirring rods are often used in chemistry because they are mostly inert ...

146. Rubber Policeman.pdf - University of Cincinnati

www.che.uc.edu

What is the origin of the rubber policeman and why is it called ... In using a glass rod to pry loose a compact precipitate, one runs the risk of accidently poking a hole in the bottom of the beaker, whereas use of a glass ... stirring-rod into a short piece of rubber tubing. The ... the military they would often be ordered to “police ...

Re: What is a rubber policeman? - Mad Scientist Network

www.madsci.org

Dec 30, 1999 ... I found the following definition: " Stirring rod and rubber policeman: glass with rubber sleeve; used to stir, assist in pouring liquids, and for ...

Rubber Policeman - VWR International

us.vwr.com

Click to enlarge. Gum rubber tip is 15 mm long with sleeve on a 15 cm glass rod. Use as a policeman, stirring rod, or as a spatula.