{"id":3483,"date":"2021-01-18T03:24:12","date_gmt":"2021-01-18T03:24:12","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3483"},"modified":"2026-04-28T10:41:48","modified_gmt":"2026-04-28T10:41:48","slug":"properties-and-synthetic-routes-of-allantoin","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/tr\/properties-and-synthetic-routes-of-allantoin\/","title":{"rendered":"Allantoin ve t\u00fcrevlerinin \u00f6zellikleri ve sentez yollar\u0131"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Geni\u015f uygulama alan\u0131 nedeniyle <strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/allantoin-cas-97-59-6\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">allantoin<\/span><\/a><\/strong> her ge\u00e7en y\u0131l artmaktad\u0131r. Allantoinin kimyasal sentez y\u00f6ntemi 1940'larda yabanc\u0131 \u00fclkelerde ortaya \u00e7\u0131kt\u0131. Ancak 1970'lerin sonu ve 1980'lerin ba\u015f\u0131na kadar Japonya ve Bat\u0131 Almanya bunu end\u00fcstriyel \u00fcretime sokmad\u0131. Yerli allantoin sentezinin geli\u015fimi nispeten ge\u00e7 ba\u015flad\u0131 ve ara\u015ft\u0131rma ve geli\u015ftirme 1970'lerin sonunda ba\u015flad\u0131. \u015eu anda, sadece birka\u00e7 yerli \u015firket pilot veya seri \u00fcretim ger\u00e7ekle\u015ftirmi\u015ftir. Az say\u0131da \u00fcretici oldu\u011fu i\u00e7in pazar son derece dar. Allantoinin \u00f6zel fiziksel ve kimyasal \u00f6zellikleri nedeniyle, allantoin t\u00fcrevlerinin \u00e7e\u015fitli t\u00fcrleri vard\u0131r ve yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Bug\u00fcne kadar, allantoin ve t\u00fcrevleri hala geli\u015fmeye devam etmektedir.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> A practical additive decision starts with the exact defect: foam, poor wetting, craters, haze, or instability. The best product is usually the one that solves that defect with the safest compatibility window.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h4 class=\"wp-block-heading\"><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/allantoin-cas-97-59-6\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Allantoin<\/span><\/a><\/strong>kimyasal ad\u0131 1-\u00fcre-m-diazosen - [2,4]; Asetaldehit Tetraaza siklopentadien; (2,5-dioksosen-4-m-diazopentil) \u00fcre; 5-\u00fcre hidantoin vb. \u0130midazol heterosiklik bile\u015fi\u011fe aittir, molek\u00fcler form\u00fcl\u00fc C<sub>4<\/sub>H<sub>6<\/sub>N<sub>4<\/sub>O<sub>3<\/sub>molek\u00fcl a\u011f\u0131rl\u0131\u011f\u0131 158.12 g\/mol'd\u00fcr. Allantoin, renksiz ve beyaz aras\u0131nda renk alan bir kristal veya kristal tozdur ve kokusuz ve tats\u0131zd\u0131r. Allantoinin erime noktas\u0131 220 ~ 238 \u2103 aral\u0131\u011f\u0131ndad\u0131r. Allantoin suda, alkolde, eterde ve kloroformda \u00e7\u00f6z\u00fcnmez, s\u0131cak suda, seyreltik etanolde ve propan- triollerde \u00e7\u00f6z\u00fcn\u00fcr. Doymu\u015f sulu \u00e7\u00f6zelti (0.6%) hafif asidiktir, pH =. 6. Sulu bir pH = 4 ila 9 \u00e7\u00f6zeltisinde stabil kal\u0131r ve sulu olmayan bir \u00e7\u00f6z\u00fcc\u00fcde ve kurutma havas\u0131nda stabildir, \u0131s\u0131 alt\u0131nda 80 ~ 90 \u2103 30 dakika i\u00e7inde bile de\u011fi\u015fmeden kal\u0131r.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Ancak y\u00fcksek s\u0131cakl\u0131klara (100 \u2103'nin \u00fczerinde), g\u00fc\u00e7l\u00fc bir baza veya uzun s\u00fcre kaynama ve g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131na dayanamaz. Allantoinin izomerleri vard\u0131r ve yap\u0131sal form\u00fcl\u00fc a\u015fa\u011f\u0131daki gibidir:<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"694\" height=\"168\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/1-1.png\" alt=\"\" class=\"wp-image-3484\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/1-1.png 694w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/1-1-300x73.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/1-1-600x145.png 600w\" sizes=\"(max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Alkol konjuge sistemi asidik gruplar\u0131n olu\u015fmas\u0131na neden olur ve molek\u00fclleri stabilize edebilir. OH'nin varl\u0131\u011f\u0131<sup>&#8211;<\/sup>&nbsp;baz\u0131 insanlar\u0131n allantoinin ikili bir asit bile\u015fi\u011fi oldu\u011funu d\u00fc\u015f\u00fcnmesine neden olabilir. Ancak, genel olarak konu\u015fursak, C(4) \u00fczerindeki hidrojen \u00e7ok d\u00fc\u015f\u00fck bir aktiviteye ve zay\u0131f bir ayr\u0131\u015fma sabitine sahiptir. Karbon (2) konumundaki asit daha g\u00fc\u00e7l\u00fcd\u00fcr ve ayr\u0131\u015fma sabiti 1.17 \u00d7 10<sup>-9<\/sup>. Bu nedenle, sadece tek bir tuz serisi, asit tuzlar\u0131 veya bazik tuzlar olu\u015fturulabilir. Bu nedenle allantoin monobazik asit-baz amfoterik bir bile\u015fiktir. Hem alkol hem de keton formlar\u0131 mevcut olabilir. Amfoterik bir bile\u015fik olarak allantoin sadece bazik bir bile\u015fik de\u011fil, ayn\u0131 zamanda zay\u0131f bir asit ve asit tuzu bile\u015fikleri i\u00e7in de zay\u0131f bir bazd\u0131r. Bu nedenle, allantoin bir\u00e7ok madde ile metal tuzlar\u0131 ve ad\u00fcktler olu\u015fturabilir. Bu metal tuzlar\u0131 ve eklentileri sadece allantoinin kendi \u00f6zelliklerini korumakla kalmaz, ayn\u0131 zamanda eklenen maddelerin do\u011fal \u00f6zelliklerini de kaybetmez. \u015eimdi, \u00f6rnek olarak allantoin al\u00fcminyum bile\u015fiklerinin baz\u0131 fiziksel ve kimyasal \u00f6zelliklerini listeleyece\u011fiz.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Allantoin al\u00fcminyum bile\u015fikleri, cilt hastal\u0131klar\u0131n\u0131n tedavisi i\u00e7in \u00e7ok \u00e7e\u015fitli etkili i\u015flevler sa\u011flar. \u00c7\u00fcnk\u00fc al\u00fcminyum iyonunun yak\u0131nsamas\u0131 ve allantoinin ideal \u00f6zellikleri tamamen birle\u015ftirilmi\u015ftir. Allantoinin varl\u0131\u011f\u0131 al\u00fcminyum tuzunun etkisini art\u0131r\u0131r ve al\u00fcminyum tuzu alerjisi olan baz\u0131 hastalar\u0131n tahri\u015fini ortadan kald\u0131r\u0131r. Hayvan deneyleri de allantoin al\u00fcminyum tuzunun tahri\u015f ve alerjisi olmad\u0131\u011f\u0131n\u0131 g\u00f6stermi\u015ftir. Birka\u00e7 yayg\u0131n form a\u015fa\u011f\u0131daki gibidir:<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">1. Alluminum dihydroxy allantoinate<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Al\u00fcminyum dihidroksi allantoinat, Al(OH) molek\u00fcler form\u00fcl\u00fcne sahiptir<sub>2<\/sub>C<sub>4<\/sub>H<sub>5<\/sub>N<sub>4<\/sub>O<sub>3<\/sub>. Beyaz bir tozdur, suda ve etanol, eter ve kloroform gibi di\u011fer \u00e7\u00f6z\u00fcc\u00fclerde \u00e7\u00f6z\u00fcnmez. Alluminum dihydroxy allantoinate'in bile\u015fimi a\u015fa\u011f\u0131daki gibidir: al\u00fcminyum oksit (22.0 \u00b1 5) %, allantoin (55.0 \u00b1 5) %, pH de\u011feri (4% s\u00fcspansiyon) 6-5.8'dir.<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">2. Al\u00fcminyum klohidroksi allantoinat prorilen glikol<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Alluminum dihydroxy allantoinate'\u0131n molek\u00fcler form\u00fcl\u00fc [Al<sub>2<\/sub>(OH)<sub>4<\/sub>ClC<sub>4<\/sub>H<sub>5<\/sub>N<sub>4<\/sub>O<sub>3<\/sub>]C<sub>3<\/sub>H<sub>8<\/sub>O<sub>2<\/sub>. Molek\u00fcler halde veya modifiye edilmi\u015f formda beyaz bir tozdur ve deodorant, \u0131slat\u0131c\u0131 madde ve cilt s\u0131k\u0131la\u015ft\u0131r\u0131c\u0131 olarak kullan\u0131l\u0131r.<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">3. Al\u00fcminyum klorhidroksi allantoinat<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Al\u00fcminyum klorhidroksi allantoinat form\u00fcl\u00fc Al<sub>2<\/sub>(OH)<sub>4<\/sub>ClC<sub>4<\/sub>H<sub>5<\/sub>N<sub>4<\/sub>O<sub>3<\/sub>. Al\u00fcminyum klorhy dro xy allantoinat saf beyaz tozdur, suda \u00e7\u00f6z\u00fcn\u00fcr, etanolde az \u00e7\u00f6z\u00fcn\u00fcr, eter ve klor taklidinde \u00e7\u00f6z\u00fcnmez. Aluminum chlorhy dro xy allantoinate'in uluslararas\u0131 ticari ad\u0131 \"alcloxa\" olup bile\u015fimi a\u015fa\u011f\u0131daki gibidir: Al\u00fcminyum oksit (28.0 \u00b1 3)%, allantoin (40.0 \u00b1 3)%, klor (9.5 \u00b1 1.5)%, nitrojen (14.2 \u00b1 1.5)%.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Ayn\u0131 zamanda, modifiye edilmi\u015f kloroal\u00fcminyum allantoinin bile\u015fimi a\u015fa\u011f\u0131daki gibidir: Al\u00fcminyum oksit (45.61 \u00b1 2.0)%, allantoin (1.25 \u00b1 0.3)%, klor (15.60 \u00b1 1.5). Al\u00fcminyum klorlu dro xy allantoinat\u0131n 10% \u00e7\u00f6zeltisinin pH de\u011feri yakla\u015f\u0131k 4.3't\u00fcr.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Literat\u00fcr raporlar\u0131na g\u00f6re, allantoinin ba\u015fl\u0131ca sentetik y\u00f6ntemleri a\u015fa\u011f\u0131daki gibidir:<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u00dcrik asidin potasyum permanganat ile reaksiyonu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u00dcrik asit ve potasyum permanganat alkali ortamda oksitlenir ve \u00fcr\u00fcnler asetik asit ile dekarboksile edilir. Oksidanlar ayr\u0131ca kur\u015fun dioksit, potasyum ferrisiyan\u00fcr, oksijen, ozon, manganez dioksit, hidrojen peroksit vb. olabilir. Reaksiyon s\u00fcreci a\u015fa\u011f\u0131daki gibidir:<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">\u0130lk olarak, oksidasyon reaksiyonu. \u00dcrik asit ve potasyum permanganat reaksiyona girer.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"525\" height=\"174\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/2-1.png\" alt=\"\" class=\"wp-image-3485\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/2-1.png 525w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/2-1-300x99.png 300w\" sizes=\"(max-width: 525px) 100vw, 525px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Ard\u0131ndan, dekarboksilasyon halka a\u00e7ma reaksiyonu nihai \u00fcr\u00fcn\u00fc elde eder.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"778\" height=\"159\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/3-1.png\" alt=\"\" class=\"wp-image-3486\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/3-1.png 778w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/3-1-300x61.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/3-1-768x157.png 768w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/3-1-600x123.png 600w\" sizes=\"(max-width: 778px) 100vw, 778px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Bu, hammadde s\u0131k\u0131nt\u0131s\u0131, y\u00fcksek fiyat, b\u00fcy\u00fck ekipman hacmi ve y\u00fcksek maliyet nedeniyle k\u00fc\u00e7\u00fck seri \u00fcretimle s\u0131n\u0131rl\u0131 olan en eski s\u00fcre\u00e7 yoludur.<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">2. Lityum \u00fcrat\u0131n elektrolitik oksidasyonu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Allantoin, glioksilik asit ve \u00fcrenin elektrik alt\u0131nda yo\u011funla\u015ft\u0131r\u0131lmas\u0131yla sentezlenmi\u015ftir.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"425\" height=\"133\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/4-1.png\" alt=\"\" class=\"wp-image-3487\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/4-1.png 425w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/12\/4-1-300x94.png 300w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Bu y\u00f6ntemin verimi \u00fcrik asit oksidasyon y\u00f6nteminden biraz daha y\u00fcksek olmas\u0131na ra\u011fmen, yukar\u0131daki sorunlara da sahiptir ve daha az end\u00fcstriyel uygulamaya sahiptir.<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">3. Oksalik asidin elektrolitik oksidasyonu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Bu, son y\u0131llarda geli\u015ftirilen yeni bir s\u00fcre\u00e7tir ve bu \u00fcretim hatt\u0131 \u00c7in'de kurulmu\u015ftur. Hammaddelerin elde edilmesi kolayd\u0131r, ancak g\u00fc\u00e7 t\u00fcketimi b\u00fcy\u00fckt\u00fcr. Literat\u00fcre g\u00f6re, s\u00fcre\u00e7 olgun de\u011fildir ve geli\u015ftirilmesi gerekmektedir.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"651\" height=\"199\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/1.png\" alt=\"\" class=\"wp-image-3976\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/1.png 651w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/1-300x92.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/1-600x183.png 600w\" sizes=\"(max-width: 651px) 100vw, 651px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">4. Glioksal\u0131n oksidasyonu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Glioksilik asit, glioksal\u0131n k\u0131smi oksidasyonu ile haz\u0131rlanabildi\u011finden ve proses ko\u015fullar\u0131 hafif oldu\u011fundan, bu sentetik yol end\u00fcstride s\u0131kl\u0131kla kullan\u0131lmaktad\u0131r. Ancak bu y\u00f6ntemde oksitlemek i\u00e7in nitrik asit kullan\u0131l\u0131r ve bu da ciddi \u00e7evre kirlili\u011fine neden olur.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">\u0130lk olarak, glioksilik asit elde etmek i\u00e7in glioksal\u0131n k\u0131smi oksidasyonu.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"552\" height=\"60\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/2.png\" alt=\"\" class=\"wp-image-3977\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/2.png 552w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/2-300x33.png 300w\" sizes=\"(max-width: 552px) 100vw, 552px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">A\u015fa\u011f\u0131da verilen iki yan reaksiyonu vard\u0131r, bu nedenle glioksilik asit elde etmek i\u00e7in bu yolun verimi yakla\u015f\u0131k 83%'dir.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"462\" height=\"131\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/3.png\" alt=\"\" class=\"wp-image-3978\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/3.png 462w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/3-300x85.png 300w\" sizes=\"(max-width: 462px) 100vw, 462px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Daha sonra, \u0131s\u0131tma ve asit ko\u015fulu alt\u0131nda glioksilik asit ve \u00fcre kondensasyonu ile allantoin sentezi.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"656\" height=\"145\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/4.png\" alt=\"\" class=\"wp-image-3979\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/4.png 656w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/4-300x66.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/4-600x133.png 600w\" sizes=\"(max-width: 656px) 100vw, 656px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Glioksilik asidin bu yolla d\u00f6n\u00fc\u015f\u00fcm\u00fc 52% \uff5e 58%'dir. Glioksal ile say\u0131lan t\u00fcm reaksiyonlara g\u00f6re, allantoin verimi teorik de\u011ferin 38% - 40%'si kadard\u0131r.<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u00dcrenin dikloroasetik asit ile reaksiyonu<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Bu madde 2 mol \u00fcre ve 1 mol dikloroasetik asidin \u0131s\u0131t\u0131lmas\u0131yla haz\u0131rlan\u0131r. Reaksiyon s\u00fcreci a\u015fa\u011f\u0131daki gibidir:<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"689\" height=\"270\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/5.png\" alt=\"\" class=\"wp-image-3980\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/5.png 689w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/5-300x118.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/5-600x235.png 600w\" sizes=\"(max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">1930'larda Amerikan patenti, allantoinin etilen glikol i\u00e7inde 120 \u00b0C'de 4 saat s\u00fcreyle \u00fcretilebilece\u011fini, ancak verimin d\u00fc\u015f\u00fck oldu\u011funu bildirmi\u015ftir. Allantoin-p-dikloroasetik asidin toplam verimi 30.3%'ye ula\u015fabilir. \u00c7in'den baz\u0131 ara\u015ft\u0131rmac\u0131lar s\u00fcreci incelemi\u015f ve toplam allantoin verimini 40%'nin \u00fczerine \u00e7\u0131karm\u0131\u015ft\u0131r. T\u00fcm rutin a\u015fa\u011f\u0131daki gibidir.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"638\" height=\"221\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/6.png\" alt=\"\" class=\"wp-image-3981\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/6.png 638w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/6-300x104.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/01\/6-600x208.png 600w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u015eu anda, asetilen y\u00f6ntemi, karbondioksit, karbon monoksit ve di\u011fer y\u00fcksek i\u00e7erikli at\u0131k gaz geri kazan\u0131m y\u00f6ntemleri gibi daha d\u00fc\u015f\u00fck maliyetle ba\u015far\u0131ya ula\u015fmaya \u00e7al\u0131\u015fan di\u011fer teknoloji geli\u015ftirme ve ara\u015ft\u0131rma yollar\u0131 da \u00e7ok aktiftir. Ancak \u015fu ana kadar hi\u00e7bir rapor \u00fcretime ge\u00e7irilmemi\u015ftir. \u00d6nemli bir end\u00fcstriyel \u00fcr\u00fcn olan allantoinin desteklenmesi i\u00e7in daha fazla sentetik ara\u015ft\u0131rmaya ihtiya\u00e7 vard\u0131r.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-b4c0eeaf-7d48-4b9c-9bec-7357c3ccc6ad\"><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/allantoin-cas-97-59-6\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Allantoin nereden al\u0131n\u0131r\uff1f<\/span><\/a><\/strong><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"block-ec1c94cf-d71a-405b-bc1c-0f668efbb6ff\"><strong>Longchang Chemical, Allantoin CAS 97-59-6 \u00fcretimi ve tedarikinde uzmanla\u015fm\u0131\u015ft\u0131r. Genellikle 24 saat i\u00e7inde sizinle ileti\u015fime ge\u00e7ece\u011fiz. Ayr\u0131ca mesai saatleri i\u00e7inde (8:30 - 6:00 UTC+8 Pzt.~Sat.) info@longchangchemical.com adresine e-posta g\u00f6nderebilir veya h\u0131zl\u0131 yan\u0131t almak i\u00e7in web sitesi canl\u0131 sohbetini kullanabilirsiniz.<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"block-7edc1230-2340-4d50-bcbf-7af68000beef\"><strong>Bu makale Longchang Kimya Ar-Ge Departman\u0131 taraf\u0131ndan yaz\u0131lm\u0131\u015ft\u0131r. Kopyalaman\u0131z ve yeniden basman\u0131z gerekiyorsa, l\u00fctfen kayna\u011f\u0131 belirtin<\/strong>.<\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>A practical selection checklist for wetting, leveling, and defoaming additives<\/h2>\n<p>Additive selection is usually most effective when the team defines the defect first and then screens compatibility, dosage range, and process stage. That is often much more reliable than choosing only by chemistry family or by a single dramatic lab result.<\/p>\n<ul>\n<li><strong>Start from the defect, not the additive name:<\/strong> wetting loss, crater, microfoam, and instability often need different solutions even inside the same formula.<\/li>\n<li><strong>Check compatibility at the intended dosage:<\/strong> the strongest additive can still be the wrong commercial choice if it narrows the process window too much.<\/li>\n<li><strong>Review the stage of use:<\/strong> some products are most useful during grind, while others matter more during let-down, filling, or final application.<\/li>\n<li><strong>Balance cure or film quality with defect control:<\/strong> the right additive fixes the problem without sacrificing adhesion, gloss, or appearance.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> A stronger process-defoaming option when persistent foam survives harsher conditions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/tr\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> A strong wetting-agent reference for inks, coatings, and difficult substrate wetting.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why does an additive that looks powerful in a beaker sometimes fail in production?<\/strong><br \/>Because shear, temperature, substrate, and the full formula can all change the way the additive performs under real process conditions.<\/p>\n<p><strong>Should the most aggressive additive always be preferred?<\/strong><br \/>Not usually. The best additive is the one that solves the real defect while preserving the broadest safe operating window.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Due to its wide application, the demand for allantoin has been increasing year by year . The chemical synthesis method of allantoin appeared in foreign countries in the 1940s. But<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[],"class_list":["post-3483","post","type-post","status-publish","format-standard","hentry","category-medicine-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Properties and synthetic routes of allantoin and its derivatives - Longchang Chemical Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Properties and synthetic routes of allantoin and its derivatives. Longchang Chemical specializes in the production and supply of Allantoin CAS 97-59-6. 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