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src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623884264046/3770351.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lpmjlxw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623884264046/3770351.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vfwo7fc" 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>江蘇2-甲基四氫呋喃多少錢,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-10-23 09:28:09</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="fu332xz" 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="oyf8vnx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="gvc2yqc" class="box"><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，江蘇2-甲基四氫呋喃多少錢，Ｎ′－二琥珀酰亞胺基碳酸酯ＤＳＣ等）和鍵合劑（Ｍ、Ｔ，江蘇2-甲基四氫呋喃多少錢，江蘇2-甲基四氫呋喃多少錢、Ｈ、中性聚合物）對(duì)ＢＡＭＯ－ＴＨＦ推進(jìn)劑力學(xué)性能的影響。2-甲基四氫呋喃是一種有機(jī)化合物，分子式是C5H10O。江蘇2-甲基四氫呋喃多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇2-甲基四氫呋喃多少錢,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623884264046/3770351.png"></div><p style="text-indent:25px">儲(chǔ)存于陰涼、通風(fēng)的庫(kù)房。遠(yuǎn)離火種、熱源。庫(kù)溫不宜超過30℃。包裝要求密封，不可與空氣接觸。應(yīng)與氧化劑等分開存放，切忌混儲(chǔ)。采用防爆型照明、通風(fēng)設(shè)施。禁止使用易產(chǎn)生火花的機(jī)械設(shè)備和工具。儲(chǔ)區(qū)應(yīng)備有泄漏應(yīng)急處理設(shè)備和合適的收容材料。采用鐵桶包裝。貯存在陰涼、通風(fēng)、干燥的倉(cāng)庫(kù)內(nèi)，嚴(yán)禁煙火。搬運(yùn)時(shí)小心輕放，切勿倒置，避免碰撞。按易燃有毒物品規(guī)定貯運(yùn)。鐵桶包裝，凈重１７０ｋｇ／桶。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00420），但也可回收得到副產(chǎn)品2-甲基四氫呋喃。福建2-甲基四氫呋喃加工廠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="江蘇2-甲基四氫呋喃多少錢,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623961490638/1355180.png"></div><p style="text-indent:25px">與氧化劑接觸猛烈反應(yīng)。流速過快,容易產(chǎn)生和積聚靜電。其蒸氣比空氣重,能在較低處擴(kuò)散到相當(dāng)遠(yuǎn)的地方,你好四氫糠醇和溴化氫能反應(yīng)，能生成2-溴甲基四氫呋喃。你好四氫糠醇和溴化氫能反應(yīng)，能生成2-溴甲基四氫呋喃。這是因?yàn)樗臍淇反季哂胁嫉幕瘜W(xué)性質(zhì)，所以可以和溴化氫通過雙分子親核取代機(jī)制(SN2)反應(yīng)生成2-溴甲基四氫呋喃。四氫呋喃極性強(qiáng)四氫呋喃是一類雜環(huán)有機(jī)化合物。它是強(qiáng)的極性醚類之一,半數(shù)致死量：二甲亞砜（大鼠，經(jīng)口）17.9ml/經(jīng)口)7.6ml/kg，四氫呋喃(大鼠,如極性分子與非極性分子之間一般不能互溶。（有時(shí)要看看有沒有溶劑化作用，如溴是非極性分子，水是極性分子，除了反應(yīng)還有溶劑化作用。）組成這兩種物質(zhì)的化學(xué)鍵是否相同。</p><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)。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇2-甲基四氫呋喃多少錢,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624164107853/4550822.png"></div><p style="text-indent:25px"> 在堿性條件下非常穩(wěn)定、大多數(shù)酸性條件下也穩(wěn)定；與水分層界面非常清晰；與水分層，水在下層；而DCM與水分層，水在上層；用MeTHF作溶劑，產(chǎn)品可在釜內(nèi)脫水，因?yàn)镸eTHF與水形成特殊的共沸物； MeTHF的沸點(diǎn)為80℃，回流冷凝器可用水作為冷卻介質(zhì)。 MeTHF的優(yōu)點(diǎn)：頭孢類藥物頭孢克肟的生產(chǎn) 頭孢克肟，抗藥拉西地平的生產(chǎn) 拉西地平 2-甲基四氫呋喃回收容易 2-甲基四氫呋喃在工業(yè)化生產(chǎn)中的優(yōu)勢(shì)：綜合成本低， 2-甲基四氫呋喃在工業(yè)化生產(chǎn)中的優(yōu)勢(shì) ，環(huán)境影響小，2-甲基四氫呋喃在工業(yè)化生產(chǎn)中的優(yōu)勢(shì)， 2-甲基四氫呋喃能提高加成產(chǎn)物的收率，而THF常常導(dǎo)致還原產(chǎn)物增加而使加成產(chǎn)物的產(chǎn)率降低。甲基常出現(xiàn)在各種有機(jī)化合物中。衢州2-甲基四氫呋喃定做</p><p style="text-indent:25px">甲烷分子中去掉一個(gè)氫原子后剩下的電中性的一價(jià)基團(tuán)。江蘇2-甲基四氫呋喃多少錢</p><p style="text-indent:25px">當(dāng)以2-甲基四氫呋喃為溶劑，Ag2CO3為氧化劑，三甲基環(huán)三硼氧烷為甲基化試劑，Cp*Co(PhH)(PF6)2作為催化劑，可獲得較佳反應(yīng)結(jié)果（Table 1）。對(duì)底物范圍進(jìn)行了擴(kuò)展。反應(yīng)結(jié)果表明，藥物分子中常見的氮雜環(huán)（3a–3e）或者酰胺基團(tuán)（3f–3p），均與體系兼容。一級(jí)酰胺由于缺乏導(dǎo)向基團(tuán)，從而導(dǎo)致具有合成難度，但增加催化劑用量，也可以實(shí)現(xiàn)鄰位的甲基化（3k-3m）。二級(jí)苯甲酰胺（3f-3j）不論是否有立**阻或環(huán)狀，都是很好的底物。三級(jí)酰胺1n 和1o可以選擇性的單甲基化，含溴的底物3o也沒有出現(xiàn)副反應(yīng)。底物3p和3z的產(chǎn)物出現(xiàn)了區(qū)域選擇性產(chǎn)物。醛和酮與含氮相比堿性更弱，少見作為C-H活化的底物，但在富電子的芳香環(huán)上，這個(gè)方法可以生成3q和3s。稠環(huán)芳香烴，可以選擇性的在1-位甲基化。然而，酯和羧酸不適用該體系。江蘇2-甲基四氫呋喃多少錢</p><p style="text-indent:25px">上海蔚云化工有限公司專注技術(shù)創(chuàng)新和產(chǎn)品研發(fā)，發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大。目前我公司在職員工以90后為主，是一個(gè)有活力有能力有創(chuàng)新精神的團(tuán)隊(duì)。公司業(yè)務(wù)范圍主要包括：環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺等。公司奉行顧客至上、質(zhì)量為本的經(jīng)營(yíng)宗旨，深受客戶好評(píng)。公司力求給客戶提供全數(shù)良好服務(wù)，我們相信誠(chéng)實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個(gè)人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1675067.html</p></div></div></div></div></div><div id="7pbyugd" class="page-right 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