連云港2-甲基四氫呋喃制造廠家上海蔚云化工供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="四氫呋喃檢測(cè)管的檢測(cè)量程總的范圍是：5---800ppm，連云港2-甲基四氫呋喃制造廠家，它有兩種型號(hào)。第一種型號(hào)檢測(cè)管的量程是5---232ppm，第二種型號(hào)檢測(cè)管的量程是20---800ppm。四氫呋喃檢測(cè)管操作簡(jiǎn)單，實(shí)用方便，檢測(cè)結(jié)果"><meta name="keywords" content="連云港2-甲基四氫呋喃制造廠家,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 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src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623991305064/1986424.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="p3ahjqx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623991305064/1986424.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="udf3q4d" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(chǎn)品關(guān)鍵詞：</span>連云港2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-11-08 01:20:58</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="2s3dfhe" 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="oiankbd" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="q7vx2ct" class="box"><p><p style="text-indent:25px">四氫呋喃檢測(cè)管的檢測(cè)量程總的范圍是：5---800ppm，連云港2-甲基四氫呋喃制造廠家，它有兩種型號(hào)。第一種型號(hào)檢測(cè)管的量程是5---232ppm，第二種型號(hào)檢測(cè)管的量程是20---800ppm。四氫呋喃檢測(cè)管操作簡(jiǎn)單，實(shí)用方便，檢測(cè)結(jié)果較準(zhǔn)可靠，如果您在短時(shí)間檢測(cè)環(huán)境中的四氫呋喃的濃度，連云港2-甲基四氫呋喃制造廠家，這是一款不錯(cuò)的選擇，連云港2-甲基四氫呋喃制造廠家，如果您需要長(zhǎng)時(shí)間檢測(cè)環(huán)境中的四氫呋喃，建議您選擇四氫呋喃氣體檢測(cè)儀，四氫呋喃氣體檢測(cè)儀能夠?qū)崟r(shí)監(jiān)測(cè)環(huán)境中的四氫呋喃及其濃度的變化情況。如果您在選購(gòu)四氫呋喃檢測(cè)管或在選擇四氫呋喃檢測(cè)管時(shí)有任何問(wèn)題，又或者在使用GASTEC氣體檢測(cè)管檢測(cè)四氫呋喃時(shí)有任何問(wèn)題。可以及時(shí)解決。在制藥工業(yè)中可合成抗痔藥磷酸伯氨奎、磷酸氯喹等。連云港2-甲基四氫呋喃制造廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623991305064/1986424.png"></div><p style="text-indent:25px">呋喃類(lèi)藥是一類(lèi)化學(xué)合成藥。能作用于細(xì)菌的酶系統(tǒng)，干擾細(xì)菌的糖代謝而有抑菌作用。使用的呋喃類(lèi)藥物有10余種，較常用的有呋喃妥因、呋喃唑酮、呋喃西林等，臨床上因呋喃西林易引起多發(fā)性神經(jīng)炎，故只供外用。呋喃妥因（呋喃啶）***范圍較廣，對(duì)多種革蘭氏陽(yáng)、陰性細(xì)菌均有控制作用，但對(duì)綠膿桿菌無(wú)效。吸收后由尿排泄，常用于***泌尿系***。細(xì)菌對(duì)本品不易產(chǎn)生耐藥性?？煽诜盟?。注意：腎功能不全者慎用。過(guò)敏反應(yīng)可致胸悶、氣喘等。可發(fā)生周?chē)窠?jīng)炎，表現(xiàn)為手足麻木及肌萎縮。中毒性精神癥狀則為幻視、幻聽(tīng)等。胃腸道反應(yīng)、溶血性貧血及肺部并發(fā)癥也能發(fā)生。呋喃唑酮（痢特靈）***譜和呋喃啶相似，對(duì)消化道的多種細(xì)菌有控制作用，也可控制滴蟲(chóng)?？诜蛰^少，主要在腸道起作用，主治腸炎、痢疾和傷寒等。對(duì)幽門(mén)螺旋菌有控制作用，故可用于***潰瘍病?？煽诜盟帯Ｗ⒁猓撼Ｒ?jiàn)胃腸反應(yīng)；常有遲發(fā)性皮疹、等反應(yīng)；也可發(fā)生肺浸潤(rùn)、***、直立性低血壓、低血糖等反應(yīng)。本品可引起多發(fā)性神經(jīng)炎，每日量超過(guò)0.4克或總量超過(guò)3克時(shí)較易發(fā)生，癥狀可遷延至數(shù)月或一年以上，故應(yīng)密切控制用量。新生兒或先天缺少血球保護(hù)酶者可致溶血性貧血。蘇州2-甲基四氫呋喃廠家定做醫(yī)學(xué)可用于合成維生素B1、磷酸氯喹和磷酸伯氨喹等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624064664530/9526363.png"></div><p style="text-indent:25px">包裝方法：小開(kāi)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(lèi)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)。</p><p style="text-indent:25px">３－二疊氮甲基氧丁環(huán)－四氫呋喃共聚醚（ＢＡＭＯ－ＴＨＦ）推進(jìn)劑屬于疊氮聚醚復(fù)合推進(jìn)劑，由于其高能、高燃速、低特征信號(hào)等優(yōu)點(diǎn)，因而引起了普遍關(guān)注。在硝胺填充、硝酸酯增塑的ＢＡＭＯ－ＴＨＦ推進(jìn)劑固體推進(jìn)劑中，粘合劑體系的網(wǎng)絡(luò)結(jié)構(gòu)和填料與粘合劑體系界面的“脫濕”現(xiàn)象影響了其力學(xué)性能，很大程度上限制了ＢＡＭＯ－ＴＨＦ推進(jìn)劑的普遍應(yīng)用。如何有效地改善粘合劑體系的網(wǎng)絡(luò)結(jié)構(gòu)，同時(shí)增強(qiáng)粘合劑與填料兩相間的粘附作用，提高其力學(xué)性能是ＢＡＭＯ－ＴＨＦ推進(jìn)劑研究領(lǐng)域的重要課題。在端羥基聚丁二烯（ＨＴＰＢ）、高能硝酸酯增塑聚醚（ＮＥＰＥ）推進(jìn)劑領(lǐng)域，有關(guān)鍵合劑對(duì)其形態(tài)結(jié)構(gòu)及力學(xué)性能的影響已有學(xué)者進(jìn)行了研究。但在硝酸酯／ＢＡＭＯ－ＴＨＦ推進(jìn)劑中對(duì)其力學(xué)性能的研究尚不充分?？疾炝硕喾N固化劑（己二異氰酸酯ＨＤＩ、甲苯二異氰酸酯ＴＤＩ、Ｎ－１００、異佛爾酮二異氰酸酯ＩＰＤＩ）、網(wǎng)絡(luò)調(diào)節(jié)劑（三羥甲基丙烷ＴＭＰ、ＤＹ、Ｎ，Ｎ′－二琥珀酰亞胺基碳酸酯ＤＳＣ等）和鍵合劑（Ｍ、Ｔ、Ｈ、中性聚合物）對(duì)ＢＡＭＯ－ＴＨＦ推進(jìn)劑力學(xué)性能的影響。儲(chǔ)存于陰涼、通風(fēng)的庫(kù)房。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png"></div><p style="text-indent:25px">丙烯酸四氫呋喃酯的合成量取100mL上述自制固體酸催化劑裝入反應(yīng)精餾裝置的反應(yīng)管中，催化劑床層上下方均裝填石英砂作為保溫、支撐層。取摩爾比1.2：1的丙烯酸和四氫糠醇，以兩倍質(zhì)量的甲苯稀釋?zhuān)♂屢褐屑尤?.01%的對(duì)苯二酚作為阻聚劑，攪拌至對(duì)苯二酚完全溶解，放置備用。設(shè)置反應(yīng)精餾裝置預(yù)熱器溫度85℃，設(shè)置催化劑床層上口溫度85℃，下口溫度110℃，設(shè)置體系壓力80KPa，將上述原料溶液以一定流速連續(xù)輸入到反應(yīng)器，經(jīng)預(yù)熱器預(yù)熱后到達(dá)反應(yīng)器頂部，自然流下在催化劑床層進(jìn)行酯化反應(yīng)。反應(yīng)中生成的水和溶劑甲苯形成共沸物從反應(yīng)器頂部抽出，冷凝后進(jìn)入分水器，甲苯回流入反應(yīng)器，水定期采出。反應(yīng)體系穩(wěn)定一小時(shí)后取樣分析，以GCMS-QP 2010 SE氣質(zhì)聯(lián)用儀進(jìn)行定性分析，GC-2010 Plus氣相色譜儀進(jìn)行定量分析。四氫糠醇轉(zhuǎn)化率99%，單酯選擇性97%。粗產(chǎn)品濃縮后，將殘留溶劑和過(guò)量丙烯酸蒸出后得到成品，為透明接近無(wú)色的液體，收率97%（以四氫糠醇計(jì)），酯含量99%，酸值0.2（mgKOH/g），水分0.05%，鉑鈷色號(hào)小于20，指標(biāo)均達(dá)到產(chǎn)品標(biāo)準(zhǔn)要求。甲基四氫呋喃重要的是與水分層,在做格式反應(yīng)有很好的應(yīng)用。衢州2-甲基四氫呋喃工廠</p><p style="text-indent:25px">甲基四氫呋喃主要用作樹(shù)脂、橡膠、乙基纖維素等。連云港2-甲基四氫呋喃制造廠家</p><p style="text-indent:25px">利用微生物還原汞的功能,可使金屬汞沉淀回收,揮發(fā)的汞可用活性炭吸附。微生物除汞方法主要有選育高效抗汞微生物處理含汞廢水：如應(yīng)用選育的高效抗汞菌，假單胞桿菌 K62可處理含甲基汞、乙基汞、**、乙酸汞、硫酸汞、氧化汞和**等廢水，金屬汞回收率達(dá)80%以上，菌體能重復(fù)用三次。采用除汞：依靠活性污泥中的抗汞菌將汞還原為金屬汞，活性污泥系統(tǒng)本身還可吸附汞。采用濾池法除汞：用馴化活性污泥掛膜處理生化需氧量 (BOD)低的含汞廢水。使用硫化氫沉淀汞：借助于其他微生物產(chǎn)生的硫化氫與水溶性汞結(jié)合成硫化汞，硫化汞溶度積很小，可以在沉淀后除去。連云港2-甲基四氫呋喃制造廠家</p><p style="text-indent:25px">上海蔚云化工有限公司主營(yíng)品牌有巴斯夫陶氏，發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大，該公司貿(mào)易型的公司。上海蔚云化工是一家私營(yíng)有限責(zé)任公司企業(yè)，一直“以人為本，服務(wù)于社會(huì)”的經(jīng)營(yíng)理念;“誠(chéng)守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。公司始終堅(jiān)持客戶需求優(yōu)先的原則，致力于提供高質(zhì)量的環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺。上海蔚云化工以創(chuàng)造***產(chǎn)品及服務(wù)的理念，打造高指標(biāo)的服務(wù)，引導(dǎo)行業(yè)的發(fā)展。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1892724.html</p></div></div></div></div></div><div id="qf2prd7" class="page-right twoColRt"><div id="zyipmt3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="e32hols" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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