金華2-甲基四氫呋喃有什么用上海蔚云化工供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="以端羥基環(huán)氧乙烷-四氫呋喃共聚醚（PET）和烯丙基異氰酸酯為原料，二丁基錫二月桂酸酯為催化劑，經(jīng)過(guò)加成反應(yīng)制備出一種含氨基甲酸酯基團(tuán)的端烯基環(huán)氧乙烷-四氫呋喃共聚醚（AUPET）；通過(guò)紅外光譜、核磁共振氫譜、碳譜和凝膠滲透色譜對(duì)AUPET的"><meta name="keywords" content="金華2-甲基四氫呋喃有什么用,2-甲基四氫呋喃"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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05:15:06</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8kgdkry" 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(wǎng)址: </span>http://www.weiyunhuagong.com</p><p><span>手機(jī): </span>021-52909928</p><p><span>地址: </span>靜安區(qū)靈石路709號(hào)55幢A2113室</p><p>[當(dāng)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="basebsz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="z3curxi" class="box"><p><p style="text-indent:25px">以端羥基環(huán)氧乙烷-四氫呋喃共聚醚（PET）和烯丙基異氰酸酯為原料，二丁基錫二月桂酸酯為催化劑，經(jīng)過(guò)加成反應(yīng)制備出一種含氨基甲酸酯基團(tuán)的端烯基環(huán)氧乙烷-四氫呋喃共聚醚（AUPET）；通過(guò)紅外光譜、核磁共振氫譜、碳譜和凝膠滲透色譜對(duì)AUPET的結(jié)構(gòu)進(jìn)行了表征；采用錐板黏度計(jì)測(cè)定了其黏度；采用DSC測(cè)定了其玻璃化轉(zhuǎn)變溫度；通過(guò)拉伸實(shí)驗(yàn)測(cè)定了其與四甲基對(duì)苯二腈氧化物（TTNO）固化后所得聚異噁唑啉彈性體的力學(xué)性能。結(jié)果表明，反應(yīng)后PET端羥基吸收峰完全消失，出現(xiàn)了烯基和氨基甲酸酯基團(tuán)的特征峰，聚醚分子鏈未發(fā)生斷裂；AUPET的玻璃化轉(zhuǎn)變溫度為-69，金華2-甲基四氫呋喃有什么用.9℃，20℃時(shí)黏度為53，金華2-甲基四氫呋喃有什么用.2 Pa·s；AUPET基聚異噁唑啉彈性體室溫下的拉伸強(qiáng)度為1.75 MPa，金華2-甲基四氫呋喃有什么用，斷裂伸長(zhǎng)率為125%，優(yōu)于HTPB基聚異噁唑啉彈性體。聚四氫呋喃主要用作嵌段聚氨酯或嵌段聚醚聚酯的軟鏈段。金華2-甲基四氫呋喃有什么用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華2-甲基四氫呋喃有什么用,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623894254288/5270430.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(yīng)溶劑具有如下優(yōu)點(diǎn)：與水互溶性小，產(chǎn)品回收相對(duì)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(yīng)，且溶劑損耗小。在制藥工業(yè)上的應(yīng)用在化妝品工業(yè)上的應(yīng)用在農(nóng)藥領(lǐng)域的應(yīng)用。芳樟醇/香酮是香水香精、家化產(chǎn)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(dá)一萬(wàn)多噸，同時(shí)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(shè)備和較高的能耗費(fèi)用。 2-MeTHF與水的溶解性有限，通過(guò)簡(jiǎn)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(shí)現(xiàn)循環(huán)使用。麗水2-甲基四氫呋喃質(zhì)量哪家好甲基呋喃可用于溶液聚合中作溶劑使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華2-甲基四氫呋喃有什么用,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624124322657/6802327.png"></div><p style="text-indent:25px">侵入途徑：吸入、食入、經(jīng)皮吸收。健康危害：本品具有刺激和麻醉作用。吸入后引起上呼吸道刺激、惡心、頭暈、***和系統(tǒng)控制。能引起肝、腎損害。液體或高濃度蒸氣對(duì)眼有刺激性。皮膚長(zhǎng)期反復(fù)接觸，可因脫脂作用而發(fā)生皮炎；環(huán)境危害：對(duì)水生生物有毒性。燃爆危險(xiǎn)：極易燃，其蒸氣與空氣混合，能形成性混合物。急救措施。皮膚接觸：脫去污染的衣著，用肥皂水和清水徹底沖洗皮膚。如有不適感，就醫(yī)眼睛接觸：提起眼瞼，用流動(dòng)清水或生理鹽水徹底沖洗10-15min。吸入：迅速脫離現(xiàn)場(chǎng)至空氣新鮮處。保持呼吸道通暢。如呼吸困難，給屬氧。呼吸、心跳停止，立即進(jìn)行心肺復(fù)蘇術(shù)。就醫(yī)食入：漱口。如有不適感。就醫(yī)消防措施危險(xiǎn)特性：其蒸氣與空氣可形成性混合物，遇明火、高熱及強(qiáng)氧化劑易引起燃燒。接觸空氣活在光照條件下可生成具有潛在危險(xiǎn)性的過(guò)氧化物。與酸類接觸能發(fā)生反應(yīng)。與氫氧化鉀、氫氧化鈉反應(yīng)劇烈。蒸氣比空氣重，沿地面擴(kuò)散并易積存于低洼處，遇火源會(huì)著火回燃。</p><p style="text-indent:25px">應(yīng)用實(shí)例：鹽酸曲馬多合成中的應(yīng)用鹽酸曲馬多，在抗HIV藥替普那韋合成中的應(yīng)用替普那韋，在血管緊張素轉(zhuǎn)化酶控制劑馬來(lái)酸依那普利合成中的應(yīng)用馬來(lái)酸依那普利，在抗***藥氟康唑合成中的應(yīng)用氟康唑，在抗藥三尖杉酯堿合成中的應(yīng)用，在抗抑郁藥鹽酸安非他酮合成中的應(yīng)用芳樟醇芳香酮，在芳樟醇/香酮合成中的應(yīng)用，在農(nóng)藥草銨膦合成中的應(yīng)用，在聯(lián)苯醇的合成中應(yīng)用。 MeTHF凝固點(diǎn)為-136℃，因而它可以替代THF用于低溫下有機(jī)鋰反應(yīng)。在有機(jī)鋰化學(xué)中，使用MeTHF作溶劑與THF相比，不僅分離方便，而且所得的鋰。THF經(jīng)硫化氫處理生成四氫硫酚，可作燃料氣中的臭味劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華2-甲基四氫呋喃有什么用,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png"></div><p style="text-indent:25px">包裝方法：小開口鋼桶；安瓿瓶外普通木箱；螺紋口玻璃瓶、鐵蓋壓口玻璃瓶、塑料瓶或金屬桶（罐）外普通木箱。監(jiān)測(cè)方法：工程控制：生產(chǎn)過(guò)程密閉，加強(qiáng)通風(fēng)。呼吸系統(tǒng)防護(hù)：空氣中濃度較高時(shí)，應(yīng)該佩戴防毒面具。眼睛防護(hù)：戴化學(xué)安全防護(hù)眼鏡。身體防護(hù)：穿防靜電工作服。手防護(hù)：戴防護(hù)手套。其他防護(hù)：工作現(xiàn)場(chǎng)嚴(yán)禁吸煙。工作后，淋浴更衣。保持良好的衛(wèi)生習(xí)慣。理化特性外觀與性狀：無(wú)色揮發(fā)性液體，有類似醚的氣味。粘性：溶解性：微溶于水，可混溶于多數(shù)有機(jī)溶劑。主要用途：用作合成藥物磷酸氯喹、磷酸伯氨喹等的原料，也可用作溶劑。穩(wěn)定性：在常溫常壓下穩(wěn)定禁配物：強(qiáng)氧化劑、潮濕空氣。避免接觸的條件：接觸空氣。聚合危害：不能出現(xiàn)。2-甲基四氫呋喃含量低,容易處理。金華2-甲基四氫呋喃有什么用</p><p style="text-indent:25px">2-甲基四氫呋喃可替代苯、甲苯、氯仿等溶劑。金華2-甲基四氫呋喃有什么用</p><p style="text-indent:25px">2-甲基四氫呋喃是一種有機(jī)化合物，分子式是C5H10O。外觀與性狀：透明,無(wú)色液體，密度：0.86 g/mL at 25 °C。熔點(diǎn)：-136 °C 凝固點(diǎn)：-136℃。沸點(diǎn)：78-80 °C，折射率：n** 1.406。儲(chǔ)存條件：庫(kù)房通風(fēng)低溫干燥,與氧化劑、酸類分開存放。由2-甲基呋喃催化加氫而得。當(dāng)催化加氫反應(yīng)采用氯化鈀催化劑時(shí),主要的產(chǎn)品是乙酰丙醇(見(jiàn)00420),但也可回收得到副產(chǎn)品2-甲基四氫呋喃。本品主要用作樹脂、橡膠、乙基纖維素等的溶劑；用它提取脂肪族酸類，要比一般所用的低沸點(diǎn)溶劑好，在鈾的冶煉工業(yè)上也相當(dāng)重要。在制藥工業(yè)中可合成抗痔藥磷酸伯氨奎、磷酸氯喹等。金華2-甲基四氫呋喃有什么用</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3121200.html</p></div></div></div></div></div><div id="frn1vgy" class="page-right twoColRt"><div id="l88fbuv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zqzcnsc" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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