{"id":4885,"date":"2021-12-08T12:34:41","date_gmt":"2021-12-08T12:34:41","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4885"},"modified":"2026-04-28T10:41:52","modified_gmt":"2026-04-28T10:41:52","slug":"cpba-and-dmf-no-together","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/cpba-and-dmf-no-together\/","title":{"rendered":"Az m-CPBA \u00e9s a DMF reakci\u00f3ja robban\u00e1svesz\u00e9lyes."},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>Gyors v\u00e1lasz:<\/strong> Surface-control additives are usually selected by defect type, compatibility, and dosage window. The strongest commercial choice is the one that fixes the real problem without creating a new one.<\/p>\n<!-- lc-qa-end -->\n\n\n<p>A DMF az egyik legsz\u00e9lesebb k\u00f6rben haszn\u00e1lt old\u00f3szer a szerves szint\u00e9zisben, \u00e9s univerz\u00e1lis old\u00f3szerk\u00e9nt is ismert. Ma egy reakci\u00f3esetet fogok megosztani veletek. Az m-CPBA \u00e9s a DMF egy\u00fcttes haszn\u00e1lata potenci\u00e1lisan vesz\u00e9lyes is lehet. Az m-CPBA, m\u00e1s n\u00e9ven m-kl\u00f3roperoxi-benzoesav, a szerves k\u00e9mi\u00e1ban nagyon gyakran haszn\u00e1lt szerves oxid\u00e1l\u00f3szer egyik t\u00edpusa. Relat\u00edv \u00e9rtelemben viszonylag biztons\u00e1gos. A k\u00e9mia ter\u00fclete azonban tele van ismeretlenekkel. A ma megosztott irodalomban jelentett baleset az m-CPBA \u00e9s a DMF vegyes alkalmaz\u00e1s\u00e1val kapcsolatos, \u00e9s k\u00f6zvetlen\u00fcl a k\u00f6vetkez\u0151 k\u00e9miai \u00e1talakul\u00e1sokhoz kapcsol\u00f3dik.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"387\" height=\"92\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/1.jpg\" alt=\"\" class=\"wp-image-4886\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/1.jpg 387w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/1-300x71.jpg 300w\" sizes=\"(max-width: 387px) 100vw, 387px\" \/><\/figure>\n\n\n\n<p>A jap\u00e1n Fujisawa Pharmaceutical Company szintetiz\u00e1torai m-CPBA-t haszn\u00e1ltak a k\u00e9n szulfoxidd\u00e1 oxid\u00e1l\u00e1s\u00e1ra DMF old\u00f3szerrel k\u00eds\u00e9rleti l\u00e9pt\u00e9kben. A szintetiz\u00e1torok el\u0151sz\u00f6r 6,3 liter DMF-et \u00e9s 11,0 kg m-CPBA-t kevertek \u00f6ssze, majd a kett\u0151t 2 \u00f3r\u00e1n \u00e1t kevertett\u00e9k. , A rendszerben oldhatatlan anyag k\u00e9pz\u0151dik, majd sz\u0171r\u00e9ssel tiszta oldatot kapunk, \u00e9s a tiszta oldatot hozz\u00e1adjuk a szerves reakci\u00f3oldathoz. Amikor a csepegtet\u00e9si folyamatot 1 \u00f3r\u00e1n kereszt\u00fcl v\u00e9gezz\u00fck, az m-CPBA DMF-oldata hirtelen felemelkedik, \u00e9s g\u00e1z szabadul fel. , majd hirtelen felrobban. A cikk szerz\u0151je (Org. Proc. Res. Dev.) r\u00f6viden le\u00edrja a reakci\u00f3 folyamat\u00e1t a k\u00f6vetkez\u0151 \u00e1br\u00e1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"392\" height=\"119\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/2.jpg\" alt=\"\" class=\"wp-image-4887\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/2.jpg 392w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/2-300x91.jpg 300w\" sizes=\"(max-width: 392px) 100vw, 392px\" \/><\/figure>\n\n\n\n<p>A szintetikus szem\u00e9lyzet azonnal kereste a baleset \u00e9s a robban\u00e1s ok\u00e1t. Azt felt\u00e9telezt\u00e9k, hogy val\u00f3sz\u00edn\u0171leg oldhatatlan anyag okozta, \u00e9s az oldhatatlan anyag pontosan m-CBPO volt. Ez az oldhatatlan anyag lehet mag\u00e1b\u00f3l az m-CPBA nyersanyagb\u00f3l sz\u00e1rmaz\u00f3 szennyez\u0151d\u00e9s, vagy fokozatosan keletkezhet a reakci\u00f3rendszerben. A cikk szerz\u0151je a tov\u00e1bbiakban egy sor ellen\u0151rz\u0151 k\u00eds\u00e9rletet v\u00e9gzett. A szerz\u0151 meg\u00e1llap\u00edtotta, hogy az m-CBPO-tartalom az m-CPBA nyersanyagban mind\u00f6ssze 0,2%. Ezenk\u00edv\u00fcl a DTA- \u00e9s IST-k\u00eds\u00e9rletek meger\u0151s\u00edtett\u00e9k, hogy az m-CPBA 89 fokon olvad, \u00e9s 97 fok alatt stabil. A szerz\u0151 ezut\u00e1n DTA-vizsg\u00e1latot v\u00e9gzett az m-CPBA DMF-oldat\u00e1n, \u00e9s az eredm\u00e9nyek azt mutatt\u00e1k, hogy az m-CPBA boml\u00e1si h\u0151m\u00e9rs\u00e9klete 83 fok. A fenti k\u00eds\u00e9rletek azt mutatj\u00e1k, hogy a DMF nagym\u00e9rt\u00e9kben befoly\u00e1solhatja az m-CPBA boml\u00e1si h\u0151m\u00e9rs\u00e9klet\u00e9nek kritikus pontj\u00e1t. Ez\u00e9rt a szerz\u0151 \u00fagy v\u00e9li, hogy a DMF old\u00f3szer fontos szerepet j\u00e1tszott ebben a balesetben.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/3-1.jpg\" alt=\"\" class=\"wp-image-4889\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"472\" height=\"422\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/4.jpg\" alt=\"\" class=\"wp-image-4890\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/4.jpg 472w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/4-300x268.jpg 300w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/figure>\n\n\n\n<p>A szerz\u0151 ezut\u00e1n meg\u00e1llap\u00edtotta, hogy a h\u0151m\u00e9rs\u00e9klet n\u00f6veked\u00e9s\u00e9vel az m-CBPO-tartalom jelent\u0151sen megn\u0151tt, \u00e9s a DTA-kutat\u00e1s kimutatta, hogy amikor a h\u0151m\u00e9rs\u00e9klet el\u00e9ri a 125 fokot, nagyon komoly robban\u00e1s v\u00e1rhat\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"452\" height=\"311\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/5.jpg\" alt=\"\" class=\"wp-image-4891\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/5.jpg 452w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/5-300x206.jpg 300w\" sizes=\"(max-width: 452px) 100vw, 452px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"466\" height=\"408\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/6.jpg\" alt=\"\" class=\"wp-image-4893\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/6.jpg 466w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/6-300x263.jpg 300w\" sizes=\"(max-width: 466px) 100vw, 466px\" \/><\/figure>\n\n\n\n<p>A szerz\u0151 ezut\u00e1n elv\u00e9gezte az m-CPBA DMF-oldat ARC-vizsg\u00e1lat\u00e1t, koncentr\u00e1ci\u00f3vizsg\u00e1latot, valamint az m-CPBA \u00e9s az m-CPBO vegyes stabilit\u00e1s\u00e1nak vizsg\u00e1lat\u00e1t. A v\u00e9gs\u0151 k\u00f6vetkeztet\u00e9s az, hogy az m-CPBA DMF-oldat\u00e1nak 185 percig tart, am\u00edg 26 fokr\u00f3l lassan 70 fokra emelkedik, majd n\u00e9h\u00e1ny perc alatt gyorsan 200 fokra emelkedik, vagy hasonl\u00f3. R\u00e1ad\u00e1sul a koncentr\u00e1ltabb m-CPBA DMF-oldat gyorsabban felmelegszik. Az m-CPBA \u00e9s az m-CPBO vegyes k\u00eds\u00e9rlete azt mutatja, hogy a h\u0151m\u00e9rs\u00e9klet kezdetben lassan emelkedik, de m\u00e1r 95 perc eltelt\u00e9vel hirtelen h\u0151m\u00e9rs\u00e9klet-emelked\u00e9s k\u00f6vetkezik be.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"494\" height=\"891\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/7.jpg\" alt=\"\" class=\"wp-image-4895\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/7.jpg 494w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/7-166x300.jpg 166w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<p>\u00d6sszefoglalva, a cikk szerz\u0151je a robban\u00e1s \u00e1ltal\u00e1nos folyamat\u00e1t adja meg. El\u0151sz\u00f6r az m-CPBO k\u00e9pz\u0151d\u00e9se a h\u0151m\u00e9rs\u00e9klet n\u00f6veked\u00e9s\u00e9hez vezet, majd a nagy mennyis\u00e9g\u0171 m-CPBO k\u00e9pz\u0151d\u00e9se magas h\u0151m\u00e9rs\u00e9kleten robban\u00e1st okoz. V\u00e9g\u00fcl a szerz\u0151 dikl\u00f3rmet\u00e1n DCM old\u00f3szerk\u00e9nt haszn\u00e1lta a probl\u00e9ma sikeres megold\u00e1s\u00e1ra. A DTA-k\u00eds\u00e9rletek azt mutatj\u00e1k, hogy a dikl\u00f3rmet\u00e1nt old\u00f3szerk\u00e9nt haszn\u00e1lva nincs exoterm id\u0151vel.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"466\" height=\"312\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/10-1.jpg\" alt=\"\" class=\"wp-image-4896\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/10-1.jpg 466w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/12\/10-1-300x201.jpg 300w\" sizes=\"(max-width: 466px) 100vw, 466px\" \/><\/figure>\n\n\n\n<p>K\u00eds\u00e9rletezz\u00fcnk t\u00edzezrekkel, a biztons\u00e1g az els\u0151! <strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/dimethyl-sulfoxide-cas-67-68-5\/\" target=\"_blank\" rel=\"noreferrer noopener\">DMSO<\/a><\/strong> \u00e9s a DMF er\u0151s pol\u00e1ros old\u00f3szerek, b\u00e1r j\u00f3 oldhat\u00f3s\u00e1ggal rendelkeznek a szerves anyagok sz\u00e1m\u00e1ra, ugyanakkor k\u00e9t\u00e9l\u0171 kardot is jelentenek!<\/p>\n\n\n<!-- lc-commercial-start -->\n<h2>Hogyan \u00e9rt\u00e9kelik a v\u00e1s\u00e1rl\u00f3k \u00e1ltal\u00e1ban a bevonat- \u00e9s fest\u00e9kadal\u00e9kokat<\/h2>\n<p>Az addit\u00edv kiv\u00e1laszt\u00e1s akkor a leghat\u00e9konyabb, ha a csapat el\u0151sz\u00f6r defini\u00e1lja a hib\u00e1t, majd sz\u0171ri a kompatibilit\u00e1st, a d\u00f3zistartom\u00e1nyt \u00e9s a folyamatf\u00e1zist. Ez gyakran sokkal megb\u00edzhat\u00f3bb, mint csak a k\u00e9miai csal\u00e1d vagy egyetlen dr\u00e1mai laboreredm\u00e9ny alapj\u00e1n v\u00e1lasztani.<\/p>\n<ul>\n<li><strong>A hiba, nem pedig az adal\u00e9kanyag neve alapj\u00e1n kezdje:<\/strong> nedvesed\u00e9si vesztes\u00e9g, kr\u00e1ter, mikrohab \u00e9s instabilit\u00e1s gyakran elt\u00e9r\u0151 megold\u00e1sokat ig\u00e9nyelnek m\u00e9g azonos formul\u00e1n bel\u00fcl is.<\/li>\n<li><strong>Ellen\u0151rizze az \u00f6sszef\u00e9rhet\u0151s\u00e9get a javasolt d\u00f3zisban:<\/strong> a leger\u0151sebb adal\u00e9kanyag m\u00e9g mindig rossz kereskedelmi d\u00f6nt\u00e9s lehet, ha t\u00fal sz\u0171kre szabja a folyamatablakot.<\/li>\n<li><strong>Tekintse \u00e1t a haszn\u00e1lat \u00e1llapot\u00e1t:<\/strong> n\u00e9h\u00e1ny term\u00e9k a legink\u00e1bb a dar\u00e1l\u00e1s sor\u00e1n hasznos, m\u00edg m\u00e1sok a leereszt\u00e9s, a t\u00f6lt\u00e9s vagy a v\u00e9gs\u0151 felhord\u00e1s sor\u00e1n sz\u00e1m\u00edtanak t\u00f6bbet.<\/li>\n<li><strong>Egyens\u00faly a gy\u00f3gym\u00f3d, a min\u0151s\u00e9g vagy a hibaellen\u0151rz\u00e9s k\u00f6z\u00f6tt:<\/strong> a megfelel\u0151 adal\u00e9kanyag orvosolja a probl\u00e9m\u00e1t an\u00e9lk\u00fcl, hogy vesz\u00e9lyeztetn\u00e9 a tapad\u00e1st, a f\u00e9nyt vagy a megjelen\u00e9st.<\/li>\n<\/ul>\n<h3>Aj\u00e1nlott term\u00e9kreferenci\u00e1k<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> Kiegyens\u00falyozott habz\u00e1sg\u00e1tl\u00f3 referencia v\u00edzb\u00e1zis\u00fa bevonatokhoz \u00e9s sok \u00e1ltal\u00e1nos habz\u00e1sg\u00e1tl\u00f3 k\u00e9perny\u0151h\u00f6z.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Hasznos, amikor a nyomdafest\u00e9k \u00e9s az UV-fest\u00e9k kompatibilit\u00e1sa sz\u00e1m\u00edt a habz\u00e1sg\u00e1tl\u00f3 k\u00e9perny\u0151n.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> Er\u0151sebb habz\u00e1sg\u00e1tl\u00f3 lehet\u0151s\u00e9g, amikor az \u00e1lland\u00f3 hab m\u00e9g a zordabb k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt is fennmarad.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> Er\u0151s nedves\u00edt\u0151 szer referencia tint\u00e1khoz, bevonatokhoz \u00e9s nehezen nedves\u00edthet\u0151 hordoz\u00f3khoz.<\/li>\n<\/ul>\n<h3>GYIK v\u00e1s\u00e1rl\u00f3knak \u00e9s formul\u00e1l\u00f3knak<\/h3>\n<p><strong>Mi\u00e9rt van az, hogy egy olyan adal\u00e9kanyag, amelyik a lombikban er\u0151teljesnek t\u0171nik, n\u00e9ha kudarcot vall a gy\u00e1rt\u00e1sban?<\/strong><br \/>Mert a ny\u00edr\u00f3er\u0151, h\u0151m\u00e9rs\u00e9klet, hordoz\u00f3anyag \u00e9s a teljes k\u00e9plet is befoly\u00e1solhatja, hogyan teljes\u00edt az adal\u00e9kanyag val\u00f3s k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt.<\/p>\n<p><strong>Mindig a legagressz\u00edvabb adal\u00e9kanyagot kell el\u0151nyben r\u00e9szes\u00edteni?<\/strong><br \/>Nem \u00e1ltal\u00e1ban. A legjobb adal\u00e9kanyag az, amelyik orvosolja a val\u00f3s hib\u00e1t, mik\u00f6zben meg\u0151rzi a legsz\u00e9lesebb biztons\u00e1gos m\u0171k\u00f6d\u00e9si tartom\u00e1nyt.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>DMF is one of the most widely used solvents in organic synthesis, and is also known as a universal solvent. Today I will share a reaction case with you. The<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-4885","post","type-post","status-publish","format-standard","hentry","category-laboratory-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>There is a risk of explosion when m-CPBA and DMF react together - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"DMF is one of the most widely used solvents in organic synthesis, and is also known as a universal solvent. 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