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id="furt9jj" class="twoCol"><div id="86x3zyv" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/third-huagong_qtfltz/">其他未分類</a>?天津8-羥基喹啉廠家直銷價(jià)格誠信為本上海北倉化工科技供應(yīng)</p><div id="wq3vc92" class="leftbox clearfix"><h1>天津8-羥基喹啉廠家直銷價(jià)格誠信為本上海北倉化工科技供應(yīng)</h1><div id="jxjbvjv" class="proBig"><div id="fzr7lc2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326787936777343/947519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kjro4c8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326787936777343/947519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pdvs484" 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>天津8-羥基喹啉廠家直銷價(jià)格,8-羥基喹啉</p><p><span>***更新：</span>2021-01-04 07:14:36</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="rqxp4zt" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海北倉化工科技有限公司</a></p><p><span>聯(lián)系人：</span>王金良</p><p><span>郵箱: </span>shbeicang@vip.126.com</p><p><span>電話: </span>18516286991</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shbeicang.cn</p><p><span>手機(jī): </span>021-60459206</p><p><span>地址: </span>金山大道4168號(hào)</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="3hg2bd4" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vzbti4z" class="box"><p><p style="text-indent:25px">喹啉是一種含有一個(gè)氮原子的六元雜環(huán)苯并體系。8-羥基喹啉是喹啉的羥基取代物，羥基位于8號(hào)碳上，它是白色或淡黃色結(jié)晶或結(jié)晶狀粉末，不溶于水，溶于乙醇、**、氯仿、苯或稀酸，能升華。腐蝕性小，天津8-羥基喹啉廠家直銷價(jià)格，有低毒，天津8-羥基喹啉廠家直銷價(jià)格。8-羥基喹啉普遍用于金屬的測(cè)定和分離?？捎米鞒恋砗头蛛x金屬離子的絡(luò)合劑和萃取劑，也是醫(yī)yao中間體（是合成克瀉痢寧、氯碘喹啉、撲喘息敏的原料），也是染料、農(nóng)yao中間體。加入環(huán)氧樹脂膠黏劑中可提高對(duì)金屬(尤其是不銹鋼)的粘接強(qiáng)度和耐熱老化性。從用非接觸原子力顯微鏡（NC—AFM）“看到”的8－羥基喹啉分子間氫鍵的實(shí)空間圖像可以知道，天津8-羥基喹啉廠家直銷價(jià)格，每4個(gè)8-羥基喹啉分子間以7個(gè)氫鍵連接形成4分子團(tuán)簇。8-羥基喹啉可與金屬離子形成配位數(shù)為4的配合物MQ2(Q為8-羥基喹啉)。天津8-羥基喹啉廠家直銷價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津8-羥基喹啉廠家直銷價(jià)格,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326787936777343/947519.png"></div><p style="text-indent:25px">如何測(cè)定8-羥基喹啉（C9H7NO）含量:稱取0.150g試樣,稱準(zhǔn)至0.0001g。溶于15mL95%乙醇中,加20mL鹽酸溶液（20%）及30mL水,搖勻,在振搖下滴加所需理論量(約41mL)的溴滴定分析用標(biāo)準(zhǔn)溶液[c(1/6KBrO3)=0.1mol/L],并過量2mL。于溶液中加2g碘化鉀,搖勻,立即用硫代硫酸鈉標(biāo)準(zhǔn)滴定溶液[c(Na2S2O3)=0.1mol/L]滴定,近終點(diǎn)時(shí)加3mL淀粉指示液(10g/L),繼續(xù)滴定至溶液藍(lán)色消失。8-羥基喹啉（C9H7NO）含量按下式計(jì)算： X=(V1·c1－V2·c2)×0。03629×100 m 式中：X----8-羥基喹啉之百分含量,%； V1----溴標(biāo)準(zhǔn)滴定溶液之用量,mL； c1----溴標(biāo)準(zhǔn)滴定溶液之濃度,mol/L； V2----硫代硫酸鈉標(biāo)準(zhǔn)滴定溶液之用量,mL； c2----硫代硫酸鈉標(biāo)準(zhǔn)滴定溶液之濃度,mol/L； m----試樣質(zhì)量,g; 0.03629----與1.00mL硫代硫酸鈉標(biāo)準(zhǔn)滴定溶液[c(Na2S2O3)=1.000mol/L]相當(dāng)?shù)?以克表示的8-羥基喹啉的質(zhì)量。江蘇8-羥基喹啉哪家好8-羥基喹啉環(huán)上有取代基時(shí)，對(duì)金屬離子的沉淀分析具有一定的選擇性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津8-羥基喹啉廠家直銷價(jià)格,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326787858671875/6588095.png"></div><p style="text-indent:25px">8-羥基喹啉實(shí)驗(yàn)結(jié)果及分析：經(jīng)蒸餾、冷卻、抽濾后，得到淡黃色固體，稱得實(shí)驗(yàn)產(chǎn)物濕重為4.16g。實(shí)驗(yàn)理論值為:3.629g，產(chǎn)率為114.63%，產(chǎn)率偏大，可能由于產(chǎn)物未烘干且為進(jìn)行重結(jié)晶，產(chǎn)品中有雜質(zhì)等原因所致。在實(shí)驗(yàn)中，兩次水蒸氣蒸餾所處的PH不同，原因是***次要除去雜質(zhì)，而第二次要得到產(chǎn)物。產(chǎn)物8-羥基喹啉既溶于酸又溶于堿。成鹽后不能被蒸出，所以第二次蒸餾前必須小心中和使PH在7~8之間，使產(chǎn)量較大。另外，由于本實(shí)驗(yàn)的產(chǎn)物具有升華性質(zhì)，而含有的固體雜質(zhì)沒有這個(gè)特征，故可以采用升華提純，但升華時(shí)火不宜過大。</p><p style="text-indent:25px">目前合成高分子8-羥基喹啉鋁的研究比較少,通過金屬離子與高分子配體和小分子配體同時(shí)作用,制備出以8-羥基喹啉金屬配合物為側(cè)鏈結(jié)構(gòu)的高分子，但反應(yīng)不能避免交聯(lián)，難以定量控制。以帶小。分子金屬配合物支鏈的降冰片烯作為聚合單元，采用開環(huán)易位聚合法，合成了側(cè)鏈含8-羥基喹啉鋁和鋅的高分子，由于單體是先被絡(luò)合生成金屬配合物，聚合反應(yīng)空間位阻較大，影響了單體反應(yīng)活性,不能得到高相對(duì)分子質(zhì)量的聚合物。通過多種方法合成了含8-羥基喹啉鋁的高分子,先合成含有8-羥基喹啉金屬配合物的烯類單體,再與其他單體共聚,得到以8-羥基喹啉金屬配合物為側(cè)基的高分子,但由于金屬絡(luò)合物本身阻礙聚合,難以得到高相對(duì)分子質(zhì)量的產(chǎn)物(通常小于20000)，使材料的熱力學(xué)性能下降。另外，先合成二配體8-羥基喹啉鋁的配合物(AQ2),然后與含有8-羥基喹啉配體的模板聚合物配合，得到高相對(duì)分子質(zhì)量的含8-羥基喹啉鋁配合物的聚合物，相對(duì)分子質(zhì)量上升到十幾萬，但是還是不夠理想!用8-羥基喹啉熒光分光光度法可以測(cè)定食品中鋁的含量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津8-羥基喹啉廠家直銷價(jià)格,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788235810546/9224825.png"></div><p style="text-indent:25px">8-羥基喹啉可用于測(cè)定鈷、鈾、鋁、鉬、鎘、釷、鐵、鈦、鎂、銅、鋅及有機(jī)氮的試劑。該品是鹵化喹啉類kang阿米巴yao物的中間體，包括喹碘仿、氯碘喹啉、雙碘喹啉等。這類yao物通過阻礙腸內(nèi)共生菌而發(fā)揮kang阿米巴作用，對(duì)阿米巴痢疾有效，對(duì)腸道外阿米巴原蟲無影響。近年來國外報(bào)道本類yao物能引起亞急性脊髓視神經(jīng)病，故該yao在日本和美國已禁用，雙碘喹啉引起此病比。如意外有接觸到本品:吸入；如果吸入，請(qǐng)講患者移到新鮮空氣處。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，請(qǐng)就醫(yī)。眼睛接觸：分開眼簾，用流動(dòng)清水或生理鹽水沖洗。立即就醫(yī)。食入：漱口。禁止催吐。立即就醫(yī)。8-羥基喹啉用作醫(yī)藥中間體，是合成克瀉痢寧、氯碘喹啉、撲喘息敏的原料。江蘇8-羥基喹啉哪家好</p><p style="text-indent:25px">如可用高效液相色譜與光度法的聯(lián)用，就可用8-羥基喹啉作試劑,于254nm波長下,同時(shí)測(cè)定一些無機(jī)離子。天津8-羥基喹啉廠家直銷價(jià)格</p><p style="text-indent:25px">8-羥基喹啉毒理學(xué)數(shù)據(jù)：1、急性毒性：大鼠經(jīng)口LD50：1200 mg/kg；小鼠經(jīng)口LC50：20 mg/kg；大鼠腹腔LD：43 mg/kg；小鼠皮下LCLo：83600 ug/kg.2、吸入毒性：大鼠：>1210 mg/m3/6H該物質(zhì)對(duì)環(huán)境可能有危害，對(duì)水體應(yīng)給予特別注意。.由鄰氨基苯酚經(jīng)環(huán)合反應(yīng)制得。將甘油加入耐酸反應(yīng)鍋內(nèi)，在攪拌下緩緩加入濃硫酸，同時(shí)將鄰氨基苯酚、鄰硝基苯酚依次加入，發(fā)煙硫酸先加入總量的65%。加熱升溫至125℃，停止加熱，自然升溫至140℃，待溫度回降至136℃。將其余的發(fā)煙硫酸繼續(xù)加入，溫度保持在137℃。加酸結(jié)束后，保溫4h，冷卻至100℃以下，抽入盛放10倍量水（按鄰氨基苯酚計(jì)）的耐酸鍋中，攪拌，加熱至75-80℃，用30%的氫氧化鈉溶液中和至pH為7-7.2。趁熱放出沉淀物，冷卻成塊狀，經(jīng)減壓升華，得8-羥基喹啉成品。天津8-羥基喹啉廠家直銷價(jià)格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2698439.html</p></div></div></div></div></div><div id="srygvj4" class="page-right twoColRt"><div id="7gd8jg9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3btqfex" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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