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• Schlenk flask
  ...hlenk flask''' (also called '''Schlenk tube''' or '''nitrogen round-bottom flask''') is a reaction vessel often used in air-sensitive chemistry or for stori ===Standard Schlenk flask===
  3 KB (503 words) - 03:54, 11 April 2019
• Büchner flask
  ...'side-arm flask''' or '''Kitasato flask''', is a thick-walled [[Erlenmeyer flask]] used in combination with a [[Büchner funnel]] and a vacuum source in vac ...ess risk of breaking the lateral tube, which would make a typical side-arm flask unusable. Some Büchner flasks have ground glass joint.
  2 KB (252 words) - 19:18, 29 January 2019
• Erlenmeyer flask
  ...:Petroleum_ether_in_Erlenmeyer_flask.jpg|thumb|300px|Wide mouth Erlenmeyer flask with [[petroleum ether]]]] ...amed '''conical flask''' or '''titration flask''', is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck. It is
  2 KB (317 words) - 17:16, 18 November 2019
• Volumetric flask
  [[File:100mL volumetric flask.jpg|thumb|200px|A 100 mL volumetric flask]] ...ed '''measuring flask''' or '''graduated flask''') is a type of laboratory flask, calibrated to contain a precise volume of liquid at a particular temperatu
  3 KB (430 words) - 08:04, 5 May 2018
• Round-bottom flask
  ...ottomed flask''', '''round bottom''') or '''RBF''' for short, is a type of flask with spherical bottom used as laboratory glassware, mostly often for synthe ...f the ground glass joint depends on the volume of the flask, for example a flask with a volume of 5 or 10 ml cannot have a 29/32 or 29/40 ground glass joint
  3 KB (510 words) - 19:20, 10 July 2023
• Florence flask
  ...:Florence flask with solution.jpg|thumb|300px|An old and worn out Florence flask]] A '''Florence flask''' or '''flat bottom flask''', is a type of flask used as an item of laboratory glassware to hold liquids.
  1 KB (215 words) - 14:29, 8 April 2019
• Fernbach flask
  A '''Fernbach flask''' or '''Fernbach culture flask''' is a type of flask suited for large volume cell culture where the culture requires a large sur ...ve a screw and plastic lid with an air membrane, to allow air to enter the flask, but prevent contamination.
  1 KB (152 words) - 23:28, 22 March 2020
• Kjeldahl flask
  The '''Kjeldahl flask''' is a [[round-bottom flask]] with a long wide neck that is used in the determination of nitrogen by Kj ...similar in appearance to a [[volumetric flask]] or a long neck [[Florence flask]]. Kjeldahl flasks are made of borosilicate glass.
  1 KB (156 words) - 13:37, 3 March 2018
• Vacuum flask
  ...engthens the time over which its contents remain hotter or cooler than the flask's surroundings. The vacuum flask consists of two flasks, placed one within the other and joined at the neck.
  2 KB (290 words) - 21:08, 4 March 2018
• Würtz flask
  A '''Würtz flask''' or '''Wurtz flask''' is a type of flask used in distillations. The flask consists of a [[round-bottom flask]] with a ground glass joint and long neck, from where a lateral tube emerge
  573 B (80 words) - 20:38, 6 June 2018
• Claisen flask
  ...k''' or '''Claisen distillation flask''' is a special type of distillation flask used in several procedures, like vacuum distillation. It was invented by Ra ...of the Claisen flask is a U-shaped neck fused on the top of the flask. The flask itself is often round-bottom or pear-shaped. The U-shape (or bifurcation) i
  1 KB (218 words) - 16:23, 19 March 2019

Page text matches

• Acetone
  ...tes lots of heat, which causes the products to evaporate from the reaction flask.
  8 KB (1,019 words) - 17:44, 1 January 2022
• Bromine
  ...nd sulfuric acid, which is risky, adding sulfuric acid to the bromine in a flask cooled in an ice bath can be much safer. Then separate using a separatory f
  14 KB (1,973 words) - 11:41, 25 June 2023
• Aluminium chloride
  ...d in airtight sealed containers, to prevent it from hydrolyzing. [[Schlenk flask]]s are often used or long term storage, and ampouling may also be used for
  6 KB (716 words) - 18:37, 7 February 2024
• Ammonia
  ...oluble gases in water and prevent water from rushing back into the heating flask. A pure, surfactant free solution of ammonia forms in the trap.
  11 KB (1,471 words) - 22:56, 24 August 2023
• Ammonium nitrate
  ...he chemicals should be added in dry form to a round-bottom or [[Erlenmeyer flask]] with a stopper and gas tubing ready to channel the ammonia. Upon the addi
  10 KB (1,381 words) - 21:26, 22 March 2023
• Cleaning glassware
  ...ulting steam will wash away any leftover lime. Tubes should be placed in a flask, also bottom up. This is not required if the glassware was rinsed previousl
  11 KB (1,909 words) - 21:41, 2 December 2018
• Diethyl ether
  <u>Attention</u>: do not spray the content of the can into a flask! This way, a lot of ether is lost (sciencemadness user Ave369 only distille ...of the fluid, then carefully inject the chilled fluid in the distillation flask using the can's long straw or another plastic straw, if the can doesn't com
  11 KB (1,652 words) - 07:51, 16 May 2024
• Diisopropyl ether
  ...d with a well greased stopcock, held in place with a clamp. Keep the ether flask in a safe place.
  6 KB (711 words) - 20:05, 9 November 2018
• Distillation
  ...difference causes it to condense into a liquid and drip into the receiving flask. Simple distillation is used when the components being separated have a lar
  3 KB (472 words) - 18:49, 22 July 2023
• Ethanol
  ...t the dry ethanol in a ground glass joint glass flask, like a round bottom flask and seal it using a well greased plug or [[stopcock]].
  14 KB (1,953 words) - 20:56, 9 September 2023
• Glassware
  100mL volumetric flask.jpg|A 100 mL volumetric flask ===[[Erlenmeyer flask]]s===
  13 KB (1,961 words) - 21:49, 1 May 2019
• Methyl formate
  ...ow boiling point, methyl formate may bump if the heating element heats the flask too much, unless you have very good temperature control. The resulting dist
  6 KB (769 words) - 18:41, 9 July 2023
• Nitromethane
  ...next, leaving the castor oil and other high boiling point fractions in the flask (vacuum distillation can be benefitial at this point as it prevents thermal
  10 KB (1,375 words) - 20:01, 16 May 2023
• Polytetrafluoroethylene
  ...l stirrer adapter, [[reaction vessel]], [[reagent bottle]], [[round-bottom flask]], sampler/ladle, scoop, [[stirring rod]], [[stopcock]], [[stopper]], [[tes
  7 KB (880 words) - 19:29, 16 October 2022
• Phosphoric acid
  ...sing phosphoric acid without damaging glassware that can exit the reaction flask in gaseous form below this temperature.
  9 KB (1,223 words) - 00:12, 29 March 2020
• Proper disposal of chemicals
  ...s and salts. However, as the carbonate is formed, it will creep out of the flask, covering it. For quicker results, alkali bases can be neutralized with any
  347 KB (46,057 words) - 20:09, 13 March 2024
• Oxalic acid
  ...ion subsides, add the hot solution into an evaporating basin. Wash out the flask with 10 ml of conc. nitric acid and evaporate the solution on the water bat
  8 KB (1,006 words) - 15:03, 18 November 2023
• Petroleum ether
  ...ether_in_Erlenmeyer_flask.jpg|thumb|300px|Petroleum ether in an Erlenmeyer flask.]]
  3 KB (391 words) - 21:07, 2 February 2020
• Preparing solutions
  ...available equipment. It is best to prepare molar solutions in [[volumetric flask]]s, although graduated cylinders will also work if volumetric flasks are no * Add the solute to the proper size of volumetric flask or graduated cylinder ''before'' adding the solvent using a powder funnel t
  6 KB (1,081 words) - 21:36, 25 April 2019
• Synthesis of salicylic acid
  ...er on top of a hot plate or other heating source, and place a round-bottom flask full of ice water on top of the beaker. Reflux for 30 minutes at 100 °C. 4- Add some sulfuric acid to the reaction flask. A white solid should form. Add sulfuric acid until no more solid forms.
  7 KB (1,088 words) - 20:32, 28 July 2015
• Tin(IV) chloride
  ...unks of tin, although higher surface area tin powder would react faster. A flask containing sodium hydroxide is used to absorb excess chlorine gas that does
  7 KB (954 words) - 18:13, 7 June 2023
• Sulfuric acid
  ...r-cooled condenser. Put thermal insulation ([[asbestos]], rockwool) on the flask and start heating it. Discard the first few grams of the distillate, until ...ed with water to regenerate nitric acid, and then re-added in the reaction flask, to further oxidize the sulfur dioxide. Any nitric oxide produced from the
  27 KB (4,285 words) - 21:31, 9 September 2023
• Trimethyl borate
  [[File:Trimethyl borate igniting in a volumetric flask|thumb|right|335 px]]
  6 KB (707 words) - 19:50, 9 September 2021
• Improvisation
  ===[[Vacuum flask|Dewar]]=== ...sperse a gas in a liquid, best if said liquid is in a beaker or Erlenmeyer flask. A PTFE tube can be used to connect to the glass bubbler, as it is chemical
  21 KB (3,515 words) - 21:18, 20 March 2023
• Sodium
  ...odium metal either directly from the flask or just dump the content of the flask in a dish and remove the sodium from the slag this way. The sodium pieces a
  16 KB (2,327 words) - 18:19, 29 August 2021
• Reflux setups
  ...heating source beneath the beaker and a cold surface, often a round-bottom flask of ice and water on top. Despite being such a simple setup, this reflux sys ...ed, a wide (~0.75 to 1.25 cm) glass tube can be attached to the top of the flask. In this set-up, it is assumed that the length of the condenser or tubing w
  2 KB (397 words) - 18:48, 22 July 2023
• Chlorobutanol
  ...high heat and allowing it to deposit in crystal form on the underside of a flask of ice-water.
  5 KB (655 words) - 07:29, 14 February 2021
• Condenser
  ...lask of cold water on top of a beaker, a more efficient method is to use a flask with a condenser attached directly to the top. ...osited on the surface of the cold finger where it sticks. In many cases, a flask of cold water placed on a beaker would work as an easy improvised solution,
  7 KB (1,085 words) - 18:52, 25 February 2018
• Chromium(III) oxide
  ...xidation of ammonia to nitric oxide when heated to red heat and put into a flask of ammonia gas.
  5 KB (622 words) - 03:08, 23 August 2021
• Copper
  *[http://www.sciencemadness.org/talk/viewthread.php?tid=62936 500 ml copper flask]
  16 KB (2,353 words) - 12:11, 25 June 2023
• Cryohol
  ...mos flask. It releases carbon dioxide gas, so make sure not to stopper the flask completely.
  1 KB (189 words) - 21:36, 2 December 2018
• Glauber's nitric acid synthesis
  # Put the saltpeter in your boiling flask or retort. # Pour the acid into your boiling flask or retort.
  4 KB (709 words) - 15:57, 12 January 2018
• Zinc chloride
  ...et inside the container. For storage of very pure zinc chloride, a Schlenk flask should be used.
  5 KB (615 words) - 21:40, 8 August 2020
• Glauber's hydrochloric acid synthesis
  ...ed to the neck of the receiving flask, the quicker lowers the water in the flask, letting air in and stopping the [[suck back]]. If you use a modern setup with a flask and thin glass tubing, use a [[Funnel-and-beaker trap|funnel trap]] to prev
  4 KB (600 words) - 20:58, 26 December 2022
• Hydrogen iodide
  ...d white [[phosphorus]]. 11 parts (by weight) of iodine is added in a small flask, and 1 part of dried white phosphorus is slowly added. The reaction takes p ..., under stirring. The iodine solution was continuously added in the second flask over a period of 2 hours, while keeping the temperature to 200°C. The resu
  7 KB (872 words) - 23:09, 28 March 2020
• Chemical garden
  First, prepare a solution of sodium silicate in a large flask, best with a perfectly flat bottom. Large crystals of a transition metal sa
  4 KB (515 words) - 22:03, 3 April 2020
• Distillation apparatus
  Simple distillation is a process in which vapors from the boiling flask are directly fed into the condenser. This process is primarily used to sep [[Flask]]s are commonly used for both the boiling vessel and receiver. Several type
  6 KB (1,000 words) - 17:46, 26 December 2022
• Boiling the Bat
  Step first involves pouring the Bat in a flask and boiling it, preferably with boiling chips. For the most part, water wil ...ute sulfuric acid, thwarting any possible damage done by them. The boiling flask should be insulated with asbestos cord, to prevent refluxing of sulfuric ac
  3 KB (498 words) - 20:25, 27 March 2023
• Heating mantle
  *Uniform heating of the flask ...baths, using a heating mantle generates no liquid residue to drip off the flask.
  4 KB (628 words) - 21:05, 11 May 2019
• Synthesis of potassium trisoxalatoferrate(III) trihydrate
  * Büchner funnel with filter paper, hooked up to a Büchner flask
  3 KB (427 words) - 19:27, 21 February 2016
• Laboratory
  ...ainers, ranging from simple bottles, through beakers, conical [[Erlenmeyer flask|flasks]], round flasks, even long-necked quantitative measuring flasks. ...conic lab glassware is the distillation apparatus, consisting of a boiling flask and a [[condenser]], of which there are many types. [[Separatory funnel]]s
  7 KB (1,109 words) - 17:13, 10 February 2019
• Ammonium formate
  ...ate shaped like snowflake arms or fern leaves will form on the edge of the flask.
  5 KB (683 words) - 18:02, 28 May 2020
• Chromyl chloride
  ...hazard symbol, away from any moisture or organic compounds. A round bottom flask with a glass stopper can be used. Inspect it periodically to make sure ther
  6 KB (808 words) - 20:08, 16 October 2022
• Lab accident
  ===Vacuum flask rupture=== Another type of accident occurs when a liquid nitrogen cooled vacuum flask/trap is removed from the vacuum pump and rapidly warmed. The thermal shock
  6 KB (992 words) - 20:47, 9 September 2023
• Filtration
  ...dness.org/talk/viewthread.php?tid=12535 Vacuum filtration without a vacuum flask.]
  3 KB (467 words) - 21:24, 2 December 2018
• Reagent bottle
  Round bottom flasks or [[Schlenk flask]]s are often used for storing air or water sensitive compounds, when an ade ...ttle, it's a good idea to weight it empty and write down the weight of the flask, best on the reagent bottle itself. Just make sure the bottle isn't damaged
  9 KB (1,411 words) - 14:43, 26 November 2022
• Hydrogen cyanide
  Adding a dilute acid to [[Prussian blue]] and heating the flask will also yield hydrogen cyanide gas. However, the yield is variable, gener
  10 KB (1,464 words) - 12:40, 26 January 2024
• Hydrogenator
  ...drides or Raney nickel and a glass container, such as Erlenmeyer or filter flask, and certain catalysts.
  3 KB (462 words) - 16:37, 2 January 2022
• Potassium rhodizonate
  In a beaker or round bottom flask add 10 g of [[inositol]] and 25 ml of [[nitric acid]] 68%. The mixture is r
  5 KB (577 words) - 16:05, 24 April 2017
• Phosphorus trichloride
  Phosphorus trichloride should be stored in [[Schlenk flask]]s, as they're the best storage containers for air and water sensitive reag
  9 KB (1,123 words) - 21:14, 22 October 2022