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- Air-free_technique abstract "Air-free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air-sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less commonly carbon dioxide and nitrogen. A common theme among these techniques is the use of a high vacuum to remove air, and the use of an inert gas: preferably argon, but often nitrogen.The two most common types of air-free technique involve the use of a glovebox and a Schlenk line. In both methods, glassware (often Schlenk tubes) are pre-dried in ovens prior to use. They may be flame-dried to remove adsorbed water. Prior to coming into an inert atmosphere, vessels are further dried by purge-and-refill — the vessel is subjected to a vacuum to remove gases and water, and then refilled with inert gas. This cycle is usually repeated three times or the vacuum is applied for an extended period of time. One of the differences between the use of a glovebox and a Schlenk line is where the purge-and-refill cycle is applied. When using a glovebox the purge-and-refill is applied to an airlock attached to the glovebox, commonly called the "port" or "ante-chamber". In contrast when using a Schlenk line the purge-and-refill is applied directly to the reaction vessel through a hose or ground glass joint that is connected to the manifold.".
- Air-free_technique thumbnail Glovebox.jpg?width=300.
- Air-free_technique wikiPageExternalLink v=onepage&q=&f=false.
- Air-free_technique wikiPageExternalLink glovebox.html.
- Air-free_technique wikiPageExternalLink vacline.html.
- Air-free_technique wikiPageExternalLink ISP-Labcourse.pdf.
- Air-free_technique wikiPageExternalLink al_techbull_al134.pdf.
- Air-free_technique wikiPageID "13758067".
- Air-free_technique wikiPageRevisionID "574084383".
- Air-free_technique hasPhotoCollection Air-free_technique.
- Air-free_technique subject Category:Air-free_techniques.
- Air-free_technique subject Category:Laboratory_techniques.
- Air-free_technique type Ability105616246.
- Air-free_technique type Abstraction100002137.
- Air-free_technique type Air-freeTechniques.
- Air-free_technique type Cognition100023271.
- Air-free_technique type Know-how105616786.
- Air-free_technique type LaboratoryTechniques.
- Air-free_technique type Method105660268.
- Air-free_technique type PsychologicalFeature100023100.
- Air-free_technique type Technique105665146.
- Air-free_technique comment "Air-free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air-sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less commonly carbon dioxide and nitrogen.".
- Air-free_technique label "Air-free technique".
- Air-free_technique label "Работа в инертной атмосфере".
- Air-free_technique label "空气隔绝技术".
- Air-free_technique sameAs m.03chbr6.
- Air-free_technique sameAs Q4386764.
- Air-free_technique sameAs Q4386764.
- Air-free_technique sameAs Air-free_technique.
- Air-free_technique wasDerivedFrom Air-free_technique?oldid=574084383.
- Air-free_technique depiction Glovebox.jpg.
- Air-free_technique isPrimaryTopicOf Air-free_technique.