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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖州2-甲基四氫呋喃工藝,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-12-19 03:14:25</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="ffvs7g2" 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="2iaxzwt" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3nubiu7" class="box"><p><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(shù)語(yǔ)遠(yuǎn)離火源。不慎與眼睛接觸后，預(yù)防靜電發(fā)生。可能生成性過(guò)氧化物。刺激眼睛和呼吸系統(tǒng)?？扇夹晕ｋU(xiǎn)特性：遇明火、高溫、氧化劑易燃;燃燒產(chǎn)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(xiǎn)品毒性分級(jí)：中毒急性毒性：4500 毫克/公斤可燃性危險(xiǎn)特性：遇明火，湖州2-甲基四氫呋喃工藝，湖州2-甲基四氫呋喃工藝，湖州2-甲基四氫呋喃工藝、高溫、氧化劑易燃;燃燒產(chǎn)生刺激煙霧物危險(xiǎn)特性：其蒸氣與空氣可形成性混合物,遇明火、高熱極易燃燒。四氫呋喃也是生產(chǎn)聚四亞甲基醚二醇重要原料。湖州2-甲基四氫呋喃工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖州2-甲基四氫呋喃工藝,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624039166387/6007011.png"></div><p style="text-indent:25px">四氫呋喃是一種重要的有機(jī)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(yīng)溶劑，用于電鍍鋁液時(shí)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(qiáng)度高的特種橡膠；與對(duì)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(duì)分子質(zhì)量為2000的PTMEG與對(duì)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(jī)合成方面，用于生產(chǎn)四氫噻吩、1.2-二氯乙烷、2.3-二氯四氫呋喃、戊內(nèi)酯、丁內(nèi)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(fù)霉素、黃體酮和一些藥。THF經(jīng)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。泰州2-甲基四氫呋喃價(jià)格哪家便宜2-甲基四氫呋喃含量低,容易處理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖州2-甲基四氫呋喃工藝,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623944439837/8611025.png"></div><p style="text-indent:25px">呋喃是很好的富電芳香雜環(huán)，可與金屬形成金屬有機(jī)化合物參與反應(yīng)，可發(fā)生[2+2]光反應(yīng)、[2+3]環(huán)加成、[4+3]環(huán)加成和Diels-Alder反應(yīng)，也可以發(fā)生卡賓反應(yīng)。2-鹵代、?；?、氰基、磺?；汪驶秽暮铣?呋喃作為富電的芳香雜環(huán)可以與很多的親電試劑發(fā)生反應(yīng)，用以制備鹵代呋喃、?；秽⑶璐秽推渌s原子取代呋喃等產(chǎn)物 (式1)。一般情況下C-2位比C-3位更容易受親電試劑的進(jìn)攻。烷基呋喃的合成烷基呋喃可由呋喃經(jīng)過(guò)親電取代反應(yīng)制得。呋喃發(fā)生Mannich反應(yīng)可生成2-(N,N-二烷基氨基)甲基呋喃衍生物，TMSI存在下呋喃也可以與β-酮發(fā)生反應(yīng)。而在Ag+催化下，1,3-二苯基硒丙烷 (式2) 或者氯代環(huán)丙烷可與呋喃發(fā)生烯丙基化。</p><p style="text-indent:25px">四氫呋喃THF主要用作生產(chǎn)原料和溶劑，但是它卻是在世界衛(wèi)生組織國(guó)際ai癥研究機(jī)構(gòu)公布的致ai物清單初步整理參考中，四氫呋喃在2B類致ai物清單中。四氫呋喃，是一個(gè)雜環(huán)有機(jī)化合物。屬于醚類，是芳香族化合物呋喃的完全氫化產(chǎn)物，是一種無(wú)色、可與水混溶、在常溫常壓下有較小粘稠度的有機(jī)液體。對(duì)于它的檢測(cè)，除了使用氣體檢測(cè)儀，我們還可以使用GASTEC四氫呋喃檢測(cè)管來(lái)快速且精確地檢測(cè)。四氫呋喃檢測(cè)管在使用時(shí)只需配備上GASTEC的手泵即可簡(jiǎn)單的完成檢測(cè)，氣體檢測(cè)管法作為一種簡(jiǎn)單、快速、直讀的檢測(cè)方法，具有其獨(dú)特的優(yōu)勢(shì)，在很多國(guó)家，檢測(cè)管法作為精密檢測(cè)方法的一種補(bǔ)充，得到了普遍的應(yīng)用。這款四氫呋喃氣體檢測(cè)管檢測(cè)快速，檢測(cè)結(jié)果較準(zhǔn)可靠。聚四亞甲基醚二醇，又稱聚四氫呋喃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖州2-甲基四氫呋喃工藝,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623884264046/3770351.png"></div><p style="text-indent:25px">操作注意事項(xiàng)：密閉操作，多方面通風(fēng)。操作人員必須經(jīng)過(guò)專門培訓(xùn)，嚴(yán)格遵守操作規(guī)程。建議操作人員佩戴過(guò)濾式防毒面具（半面罩），戴安全防護(hù)眼鏡，穿防靜電工作服，戴橡膠耐油手套。遠(yuǎn)離火種、熱源，工作場(chǎng)所嚴(yán)禁吸煙。使用防爆型的通風(fēng)系統(tǒng)和設(shè)備。防止蒸氣泄漏到工作場(chǎng)所空氣中。避免與氧化劑、酸類、堿類接觸。灌裝時(shí)應(yīng)控制流速，且有接地裝置，防止靜電積聚。搬運(yùn)時(shí)要輕裝輕卸，防止包裝及容器損壞。配備相應(yīng)品種和數(shù)量的消防器材及泄漏應(yīng)急處理設(shè)備。倒空的容器可能殘留有害物儲(chǔ)存注意事項(xiàng)：通常商品加有阻聚劑。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(guò)30℃。包裝要求密封，不可與空氣接觸。應(yīng)與氧化劑、酸類、堿類等分開存放，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。THF經(jīng)硫化氫處理生成四氫硫酚，可作燃料氣中的臭味劑。泰州2-甲基四氫呋喃價(jià)格哪家便宜</p><p style="text-indent:25px">四氫呋喃具有低毒、低沸點(diǎn)、流動(dòng)性好等特點(diǎn)。湖州2-甲基四氫呋喃工藝</p><p style="text-indent:25px">在常溫下大多數(shù)聚四氫呋喃二醇是白色蠟狀固體，在40℃左右熔化成低黏度無(wú)色至淺黃色透明液體。分子量為650～2900的PTMEG閃點(diǎn)（PMCC）這197～207℃，熔點(diǎn)（凝固點(diǎn)）為11～38℃（詳細(xì)數(shù)據(jù)請(qǐng)見有關(guān)廠家的產(chǎn)品數(shù)據(jù)），熔化了的PTMEG可過(guò)冷，結(jié)晶緩慢。聚四氫呋喃二醇折射率（25℃）為1.464。不溶于水，在水中的溶解度小于1%，也不溶于脂肪烴，可溶于芳烴、氯化烴、醇、酯、酮等極性有機(jī)溶劑。聚四氫呋喃二醇在隔絕氧氣下貯存穩(wěn)定，例如在氮?dú)獗Ｗo(hù)下55℃以下可至少穩(wěn)定貯存1年。在100℃只能貯存數(shù)天。長(zhǎng)期接觸空氣可導(dǎo)致氧化和降解，造成色澤變黃、過(guò)氧化物含量和酸值增加，在無(wú)空氣下210～220℃發(fā)生熱降解，生成四氫呋喃，為了改善貯存穩(wěn)定性，PTMKEG工業(yè)品中一般加有微量的抗氧劑。湖州2-甲基四氫呋喃工藝</p><p style="text-indent:25px">上海蔚云化工有限公司致力于化工，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。上海蔚云化工深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺。上海蔚云化工致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來(lái)良好體驗(yàn)。上海蔚云化工始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使上海蔚云化工在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2464468.html</p></div></div></div></div></div><div id="jnp2pes" class="page-right twoColRt"><div 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