Laboratory Flasks
Laboratory flasks are containers which are classified as glassware. They are a number of shapes and sizes with wider bodies or narrower tubular sections at the top or neck. They are specified by how much volume they hold and this is typically given in millilitres. I Reaction flasks are spherical with round bottoms and joints at the neck to connect to other pieces of apparatus. They are made of thick glass and can withstand high pressure, even vacuums. Multiple neck types have up to five necks for complex processes and multiple reagents. Distillation flasks have one narrow neck and thinner glass since this is easier to heat. Some varieties can be test tube or pear-shaped. Reagent flasks are flat-bottomed, cannot withstand high pressure and some have a glass stopper in the neck. Erlenmeyer ones are shaped like a cone and are popular because of their low price. The volumetric ones are used to prepare liquid volumes of high precision while the Dewar flask is double-walled with a vacuum between. Flasks are used for making solutions, holding or collecting samples and volumetrically measuring chemicals. For chemical reactions, they are necessary for mixing, heating, cooling, dissolving, precipitation, distillation or analysis.
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12MM SILICONE/PTFE 1.01MM THICK (1 Supplier)
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12MM SILICONE/PTFE 1.43 MM THICK (1 Supplier)
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12MM SILICONE/PTFE SEAL 1.8MM THICK (1 Supplier)
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12MM SILICONE/PTFE SEAL 2MM THICK (1 Supplier)
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12MM TYPE 6 RUBBER/PTFE SEAL 1MM THICK (1 Supplier)
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13MM ALU-CAP GOLD CENTRE TEAR OFF BUTYL/ (1 Supplier)
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13MM ALUMINIUM CAP CLEAR LACQUERED (1 Supplier)
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13MM COMBINATION SEAL ALU CAP PHARMA FIX (1 Supplier)
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13MM COMBINATION SEAL ALUMINIUM CAP GOLD (1 Supplier)
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13MM COMBINATION SEAL: PP SCREW CAP (1 Supplier)
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13MM CRIMPER JAW SET (1 Supplier)
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13MM CRIMPER MADE OF STAINLESS STEEL (1 Supplier)
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13MM DECAPPER JAW SET (1 Supplier)
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13MM DECAPPER MADE OF STAINLESS STEEL (1 Supplier)
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13MM ELECTRONIC CRIMPER (1 Supplier)
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13MM ELECTRONIC DECAPPER (1 Supplier)
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13MM FLIP-OFF JAW SET (1 Supplier)
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13MM MANUAL CRIMPER FOR FLIP-OFF SEALS (1 Supplier)
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13MM PP CAP MAGNETIC RING SIL/PTFE 1.3MM (1 Supplier)
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13MM PP-CAP WHITE CLOSED TOP RUBBER/TEF (1 Supplier)
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13MM PP SCREW CAP CLOSED TOP BLACK (1 Supplier)
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13MM SCREW CAP PREFITTED SILICONE/PTFE L (1 Supplier)
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150UL POLYSPRING INSERT (1 Supplier)
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1.5 ML 11090210 + 08080027 (1 Supplier)
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15ml bottle natural (round narrowmouth) (1 Supplier)
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