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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624016490617/6540095.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="en28zax" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624016490617/6540095.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3fbxz2k" 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>浙江2-甲基四氫呋喃批發(fā)價格,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-11-08 02:21:15</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="j3yahoq" 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="vjahj3e" class="page-proshow02"><p class="title">詳細說明</p><div id="kzwy3uw" class="box"><p><p style="text-indent:25px">操作注意事項：密閉操作，多方面通風。操作人員必須經過專門培訓，嚴格遵守操作規(guī)程。建議操作人員佩戴過濾式防毒面具（半面罩），戴安全防護眼鏡，穿防靜電工作服，戴橡膠耐油手套。遠離火種、熱源，工作場所嚴禁吸煙。使用防爆型的通風系統(tǒng)和設備。防止蒸氣泄漏到工作場所空氣中。避免與氧化劑、酸類、堿類接觸，浙江2-甲基四氫呋喃批發(fā)價格。灌裝時應控制流速，且有接地裝置，防止靜電積聚。搬運時要輕裝輕卸，防止包裝及容器損壞。配備相應品種和數(shù)量的消防器材及泄漏應急處理設備。倒空的容器可能殘留有害物儲存注意事項：通常商品加有阻聚劑。儲存于陰涼、通風的庫房。遠離火種、熱源。庫溫不宜超過30℃。包裝要求密封，浙江2-甲基四氫呋喃批發(fā)價格，不可與空氣接觸，浙江2-甲基四氫呋喃批發(fā)價格。應與氧化劑、酸類、堿類等分開存放，切忌混儲。采用防爆型照明、通風設施。禁止使用易產生火花的機械設備和工具。儲區(qū)應備有泄漏應急處理設備和合適的收容材料。醫(yī)學可用于合成維生素B1、磷酸氯喹和磷酸伯氨喹等。浙江2-甲基四氫呋喃批發(fā)價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江2-甲基四氫呋喃批發(fā)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">四氫呋喃與水能混溶，并常含有少量水分及過氧化物。如要制得無水四氫呋喃，可用氫化鋁鋰在隔絕潮氣下回流（通常1000mL約需2~4g氫化鋁鋰）除去其中的水和過氧化物，然后蒸餾，收集66℃的餾分蒸餾時不要蒸干，將剩余少量殘液即倒出Chemicalbook）。精制后的液體加入鈉絲并應在氮氣氛中保存。處理四氫呋喃時，應先用小量進行試驗，在確定其中只有少量水和過氧化物，作用不致過于激烈時，方可進行純化。四氫呋喃中的過氧化物可用酸化的碘化鉀溶液來檢驗。如過氧化物較多，應另行處理為宜。HF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。宿遷2-甲基四氫呋喃批發(fā)廠家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="浙江2-甲基四氫呋喃批發(fā)價格,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624039166387/6007011.png"></div><p style="text-indent:25px">儲存于陰涼、通風的庫房。遠離火種、熱源。庫溫不宜超過30℃。包裝要求密封，不可與空氣接觸。應與氧化劑等分開存放，切忌混儲。采用防爆型照明、通風設施。禁止使用易產生火花的機械設備和工具。儲區(qū)應備有泄漏應急處理設備和合適的收容材料。采用鐵桶包裝。貯存在陰涼、通風、干燥的倉庫內，嚴禁煙火。搬運時小心輕放，切勿倒置，避免碰撞。按易燃有毒物品規(guī)定貯運。鐵桶包裝，凈重１７０ｋｇ／桶。由2-甲基呋喃催化加氫而得。當催化加氫反應采用氯化鈀催化劑時，主要的產品是乙酰丙醇（見00420），但也可回收得到副產品2-甲基四氫呋喃。</p><p style="text-indent:25px">試劑和儀器，試劑：所用試劑均為分析純試劑；儀器：循環(huán)水泵、電動攪拌器、旋轉蒸發(fā)儀、反應精餾裝置、GC-2010 Plus氣相色譜儀，GCMS-QP 2010 SE氣質聯(lián)用儀。固體酸催化劑的制備，在三口燒瓶上裝上高速攪拌器、溫度計，加入一定量飽和氯化鈉水溶液，加入明膠、聚乙烯醇作為分散劑。開啟攪拌，分散劑均勻分散后，稱量摩爾比為5:1的鄰氯苯乙烯和二乙烯基苯，再取定量液體石臘作為致孔劑和過氧化苯甲酰作為引發(fā)劑加入反應器中，升溫開始反應，75℃保持12小時。反應中監(jiān)控油珠分散情況，隨時調整攪拌速度以控制油珠分散度和顆粒大小。反應結束后緩慢冷卻、過濾，以熱水洗滌并烘干。用石油醚萃取致孔劑，篩分出直徑0.5~0.7mm的樹脂骨架，以二氯乙烷溶脹。溶脹完成后，在良好攪拌下加入定量濃硫酸，升溫回流并保持5小時。蒸出二氯乙烷，加入定量發(fā)煙硫酸，升溫至110℃反應。反應過程中定時取樣，測定樹脂交換量，達到預定值后結束反應，降溫。以蒸餾水小心的洗滌樹脂至洗液中性，自然晾干。相反從化合物上脫落的過程叫去甲基化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江2-甲基四氫呋喃批發(fā)價格,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623961490638/1355180.png"></div><p style="text-indent:25px">使用注意事項：呼吸系統(tǒng)防護：可能接觸其蒸氣時，應該佩戴過濾式防毒面具(半面罩)。必要時，建議佩戴自給式呼吸器眼睛防護：一般不需要特殊防護，高濃度接觸時可戴安全防護眼鏡。身體防護：穿防靜電工作服。手防護：戴防苯耐油手套。其它：工作現(xiàn)場嚴禁吸煙。工作畢，淋浴更衣。注意個人清潔衛(wèi)生。應急處置：皮膚接觸：脫去被污染的衣著，用肥皂水和清水徹底沖洗皮膚。眼睛接觸：提起眼瞼，用流動清水或生理鹽水沖洗。就醫(yī)。吸入：迅速脫離現(xiàn)場至空氣新鮮處。保持呼吸道通暢。如呼吸困難，給輸氧。如呼吸停止，立即進行人工呼吸。就醫(yī)。食入：飲足量溫水，催吐，就醫(yī)。滅火方法：噴水冷卻容器，可能的話將容器從火場移至空曠處。處在火場中的容器若已變色或從安全泄壓裝置中產生聲音，必須馬上撤離。滅火劑：泡沫、干粉、二氧化碳、砂土。用水滅火無效。小量泄漏：用砂土或其它不燃材料吸附或吸收。也可以用大量水沖洗，洗水稀釋后放入廢水系統(tǒng)。大量泄漏：構筑圍堤或挖坑收容。用泡沫覆蓋，降低蒸氣災害。噴霧狀水冷卻和稀釋蒸汽、保護現(xiàn)場人員、把泄漏物稀釋成不燃物。用防爆泵轉移至槽車或**收集器內，回收或運至廢物處理場所處置。呋喃干擾細菌的糖代謝而有抑菌作用。泰州2-甲基四氫呋喃工藝</p><p style="text-indent:25px">四氫呋喃具有低毒、低沸點、流動性好等特點。浙江2-甲基四氫呋喃批發(fā)價格</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。浙江2-甲基四氫呋喃批發(fā)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。上海蔚云化工致力于為客戶提供良好的環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺，一切以用戶需求為中心，深受廣大客戶的歡迎。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。上海蔚云化工秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1894072.html</p></div></div></div></div></div><div id="3ahekry" class="page-right twoColRt"><div id="akc32he" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ktkbnpg" 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="f23xoqc" class="recomPic likePro"><a 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