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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="ngd8ujv" class="twoCol"><div id="bu28he8" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-_sysqm/">實驗室器皿</a>?<a href="http://www.cdcfah.com/cp/third-sysqm_qtsysyp/">其他實驗室用品</a>?杭州2-甲基四氫呋喃采購價格上海蔚云化工供應</p><div id="mvixey9" class="leftbox clearfix"><h1>杭州2-甲基四氫呋喃采購價格上海蔚云化工供應</h1><div id="fo7hlsh" class="proBig"><div id="rv8ryke" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mkrjq3d" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qzmjg83" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>杭州2-甲基四氫呋喃采購價格,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-10-25 00:34:49</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="j2ov8bv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海蔚云化工有限公司</a></p><p><span>聯(lián)系人：</span>盛志華</p><p><span>郵箱: </span>3273929241@qq.com</p><p><span>電話: </span>18721726651</p><p><span>傳真: </span>021_</p><p><span>網址: </span>http://www.weiyunhuagong.com</p><p><span>手機: </span>021-52909928</p><p><span>地址: </span>靜安區(qū)靈石路709號55幢A2113室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="feby3uw" class="page-proshow02"><p class="title">詳細說明</p><div id="oifme3c" class="box"><p><p style="text-indent:25px">四氫呋喃主要用途是作高分子聚合物的前體四氫呋喃是一個雜環(huán)有機化合物，分子式為C4H8O。屬于醚類，是芳香族化合物呋喃的完全氫化產物，是一種無色、可與水混溶、在常溫常壓下有較小粘稠度的有機液體。這種環(huán)狀醚的化學式可寫作(CH2)4O。由于它的液態(tài)范圍很長，所以是一種常用的中等極性非質子性溶劑。它的主要用途是作高分子聚合物的前體。盡管THF的氣味和化學性質與**很相似，但是麻醉效果卻很差。用作溶劑、有機合成的原料。用作色譜分析試劑、有機溶劑及尼龍66中間體。四氫呋喃又名一氧五環(huán)、氧雜環(huán)戊烷、四亞甲基氧，是合成農藥苯丁錫的中間體，另外，可直接用于制合成纖維、合成樹脂、合成橡膠，也是許多聚合材料、精密磁帶和電鍍工業(yè)的溶劑，還用于制己二腈、己二酸、己二胺，杭州2-甲基四氫呋喃采購價格、丁二酸、丁二醇、γ-丁內酯等，在醫(yī)藥工業(yè)上，可用于生產咳必清，杭州2-甲基四氫呋喃采購價格、黃體酮，杭州2-甲基四氫呋喃采購價格、利復霉素和用作制藥溶劑等。四氫呋喃是一種常用的中等極性非質子性溶劑。杭州2-甲基四氫呋喃采購價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州2-甲基四氫呋喃采購價格,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png"></div><p style="text-indent:25px">四氫呋喃性狀：無色液體，有與醚類似的氣味。能與水和有機溶劑相混溶，易燃。四氫呋喃在強氧化劑高錳酸鉀的作用下會發(fā)生反應生成丁二酸；檢測殘留四氫呋喃的方法感覺用儀器分析，如氣、液相色譜；四氫呋喃是一種性質比較穩(wěn)定的常用的有機溶劑，也可用于化工產品生產原料。四氫呋喃的沸點是分子量72.11相對dao密度（du20℃/4℃dao）0.8892凝固點/℃-108.5沸點/℃65.4閃點（閉口）/℃17.2折光率（20℃）1.407介電?；財?shù)（25℃）7.58偶極矩/(10^-30C·答m)5.70,5.67表面張力/(mN/m)26.4黏度(20℃)/mPa·s0.55臨界溫度/℃26.8臨界壓力/MPa5.19蒸氣壓(15℃)/kPa15.2 蒸氣相對密度（空氣=1）2.5燃點/℃321.1蒸發(fā)熱(66℃)/(KJ/Kg)410極限/%(體積)2.3-11.8較小引燃能量/mJ0.5。泰州2-甲基四氫呋喃是做什么用的四氫呋喃是一種重要的有機化工及精細化工原料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州2-甲基四氫呋喃采購價格,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624080435939/3968180.png"></div><p style="text-indent:25px">2-甲基四氫呋喃與其它溶劑相比，MeTHF用作格氏反應溶劑具有如下優(yōu)點：與水互溶性小，產品回收相對比較容易；與THF相比，易于脫水，回收利用方便、成本低；與THF相比，分層界面清晰；特別適用于制備高濃度的溴格氏試劑溶液；獲得高收率的芐基或烯丙基格氏試劑；可在較高溫度下反應，且溶劑損耗小。在制藥工業(yè)上的應用在化妝品工業(yè)上的應用在農藥領域的應用。芳樟醇/香酮是香水香精、家化產品香精及皂用香精配方中使用頻率較高的香料品種，現(xiàn)在全世界的年用量達一萬多噸，同時也是合成異植物醇、VE、VK的原料。 THF與水互溶，回收低水份的THF，需要特殊的設備和較高的能耗費用。 2-MeTHF與水的溶解性有限，通過簡單的間歇共沸脫水精餾操作，就可以回收水份低于300ppm的2-MeTHF，實現(xiàn)循環(huán)使用。</p><p style="text-indent:25px">聚四氫呋喃生產過程中分子量控制的影響因素，聚合反應工序，在這一關鍵步驟中，THF、**(ACAN)、和醋酸(HAC) 被連續(xù)加入聚合反應器中反應生成PTMEA，聚合轉化率通常約28%～30%。聚合產品PTMEA 的聚合分子量由**/四氫呋喃比率(ACAN/THF)與及THF 循環(huán)回路系統(tǒng)中醋酸的含量所控制。然后，通過THF 分離塔、醋酸汽提塔對PTMEA 分離提純。反應器產品物料中有未反應的THF、ACAN、及HAC返回至反應器循環(huán)再使用。催化劑截留其中，同時將產品及其反應熱移出。甲醇化處理之目的是將PTMEA 轉化為PTMEG，這一轉化是經與甲醇反應通過酯-醇交換實現(xiàn)的。PTMEA、甲醇、和甲醇鈉被加入反應精餾塔中，產物PTMEG及一些殘余甲醇和甲醇鈉在反應精餾塔塔底提出，通過甲醇閃蒸塔、甲醇分離塔將甲醇分離除去。反應精餾塔塔頂物料含甲醇和醋酸甲酯，通過共沸精餾塔將醋酸甲酯和甲醇分離，醋酸甲酯回收作副產品出售，甲醇返回到循環(huán)甲醇貯槽。四氫呋喃并用于天然氣加味。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州2-甲基四氫呋喃采購價格,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624016490617/6540095.png"></div><p style="text-indent:25px">四氫-2-甲基呋喃;喃;;2-甲基四喃;2-甲基四氫呋喃(METHF);A-甲基四氫呋喃;2-甲基四氫呋喃,大約150-400PPMBHT作為穩(wěn)定劑，C5H10O分子量：86.13安全術語遠離火源。不慎與眼睛接觸后，預防靜電發(fā)生?？赡苌尚赃^氧化物。刺激眼睛和呼吸系統(tǒng)?？扇夹晕ｋU特性：遇明火、高溫、氧化劑易燃;燃燒產生刺激煙霧滅火劑：干粉、干砂、二氧化碳、泡沫、1211滅火劑2一甲基四氫呋喃有毒嗎屬于危險品毒性分級：中毒急性毒性：4500 毫克/公斤可燃性危險特性：遇明火、高溫、氧化劑易燃;燃燒產生刺激煙霧物危險特性：其蒸氣與空氣可形成性混合物,遇明火、高熱極易燃燒。聚四亞甲基醚二醇，又稱聚四氫呋喃。江西2-甲基四氫呋喃廠家有哪些</p><p style="text-indent:25px">2-甲基四氫呋喃含量低,容易處理。杭州2-甲基四氫呋喃采購價格</p><p style="text-indent:25px">四氫呋喃是一種重要的有機合成原料且是性能優(yōu)良的溶劑，特別適用于溶解PVC、聚偏氯乙烯和丁苯胺，普遍用作表面涂料、防腐涂料、印刷油墨、磁帶和薄膜涂料的溶劑，并用作反應溶劑，用于電鍍鋁液時可任意控制鋁層厚度且光亮。四氫呋喃自身可縮聚成聚四亞甲基醚二醇，也稱四氫呋喃均聚醚。PTMEG與甲苯二異氰酸酯制成耐磨、耐油、低溫性能好、強度高的特種橡膠；與對苯二甲酸二甲酯和1,4-丁二醇制成嵌段聚醚聚酯彈性材料。相對分子質量為2000的PTMEG與對亞甲基雙二異氰酸酯制成聚氨酯彈性纖維、特種橡膠和一些特殊用途涂料的原料。在有機合成方面，用于生產四氫噻吩、1.2-二氯乙烷、2.3-二氯四氫呋喃、戊內酯、丁內酯和吡咯烷酮等。在醫(yī)藥工業(yè)方面，THF用于合成咳必清、利復霉素、黃體酮和一些藥。THF經硫化氫處理生成四氫硫酚，可作燃料氣中的臭味劑。THF還可用做合成革的表面處理劑。杭州2-甲基四氫呋喃采購價格</p><p style="text-indent:25px">上海蔚云化工有限公司位于靜安區(qū)靈石路709號55幢A2113室。公司業(yè)務分為環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產品和服務。公司秉持誠信為本的經營理念，在化工深耕多年，以技術為先導，以自主產品為重點，發(fā)揮人才優(yōu)勢，打造化工良好品牌。上海蔚云化工憑借創(chuàng)新的產品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1692942.html</p></div></div></div></div></div><div id="ix3oqkg" class="page-right twoColRt"><div id="8ryahj3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="i7nzgda" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="r228kce" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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