Jay-qu Posted September 8, 2006 Report Posted September 8, 2006 grr and at our school we always had the glass ones with the squeezer thing.. sooo annoying! Quote
Mercedes Benzene Posted September 9, 2006 Author Report Posted September 9, 2006 grr and at our school we always had the glass ones with the squeezer thing.. sooo annoying! Like an eye dropper? lmao. So low tech... :) Quote
Jay-qu Posted September 9, 2006 Report Posted September 9, 2006 yup just like one of those.. its hit and miss over and over till you land the meniscus on the line.. Quote
Turtle Posted September 9, 2006 Report Posted September 9, 2006 CCA Nominate... Stoppers /forums/images/smilies/banana_sign.gif Quote
Mercedes Benzene Posted September 9, 2006 Author Report Posted September 9, 2006 Stoppers (rubber or otherwise)Stoppers are used to well... stop the flow of a substance from one container to another (or the floor:hihi: ). They create airtight seals that serve a couple purposes.Typically, stoppers are placed in test tubes or beakers to allow safe transport or the ability to shake. Some stoppers contain holes that allow the insertion of tubing, which can be helpful when heating and transportation of a gaseous stubstance is necessary. Quote
Turtle Posted September 10, 2006 Report Posted September 10, 2006 Some stoppers contain holes that allow the insertion of tubing, which can be helpful when heating and transportation of a gaseous stubstance is necessary. At my age, that is beyond hilarious!:QuestionM :angel: :hihi: Thank you ever so much for providing the smallerized images.:lol: My next proposed CCA is.... The test tube. /forums/images/smilies/banana_sign.gif Quote
Mercedes Benzene Posted September 10, 2006 Author Report Posted September 10, 2006 At my age, that is beyond hilarious! Thank you ever so much for providing the smallerized images. I'm glad I could be of service. :QuestionM lol. Perhaps someone else would like to do the test tube entry? Quote
Mercedes Benzene Posted September 14, 2006 Author Report Posted September 14, 2006 Okay. Test TubeA common item in the laboratory. Consists of a glass or plastic "tube" with a rounded bottom. They are commonly plugged with stoppers (see above), and can be used to mix or heat samples. Quote
quatumrulesoverall Posted September 16, 2006 Report Posted September 16, 2006 The picture are all good, however, you all should quote where you get it from. CHeers:shrug: :hihi: Quote
ronthepon Posted September 16, 2006 Report Posted September 16, 2006 I begin drooling when I see the excellent quality equipment. Imagine spending ten minutes figuring out how to use a sucking type pippete to extract concentrated nitric acid, only to discover that the lab assistant pours it directly into the test tube from the dangerously dirty reagent bottle. Quote
Mercedes Benzene Posted September 16, 2006 Author Report Posted September 16, 2006 The picture are all good, however, you all should quote where you get it from. CHeersThanks for your concern, but I used non-copywritten images. Imagine spending ten minutes figuring out how to use a sucking type pippete to extract concentrated nitric acid, only to discover that the lab assistant pours it directly into the test tube from the dangerously dirty reagent bottle.That sounds positively dreadful! Quote
Mercedes Benzene Posted October 2, 2006 Author Report Posted October 2, 2006 Büchner funnel A Büchner funnel is a tool used to efficiently filter a substance by means of a vacuum. The funnel is placed in a Büchner flask, which is essentially an Erlenmeyer flask with a little "arm" protruding from the side. Filter paper is placed in the funnel (which is usually made from ceramic), and the substance to be filtered is placed on top. One end of a hose is connected to a vacuum pump, while the other is connected to the flask via the "arm". The pump is activated and the solvent is pulled through the funnel by vaccum current. Quote
Jay-qu Posted October 3, 2006 Report Posted October 3, 2006 Probably overlooked, but very handy The Match Quote
Mercedes Benzene Posted October 3, 2006 Author Report Posted October 3, 2006 The MatchNo explanation necessary. B) Quote
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