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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濟(jì)南8-羥基喹啉現(xiàn)價,8-羥基喹啉</p><p><span>***更新：</span>2020-12-25 00:22:44</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="x3bybvh" 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</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="i4fw8ho" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="uo8oqx8" class="box"><p><p style="text-indent:25px">通過8-羥基喹啉改性提高環(huán)氧富鋅涂層的保護(hù)性能：利用電化學(xué)阻kang、紅外光譜、電鏡等方法研究了8-羥基喹啉改善環(huán)氧富鋅涂層性能的作用。在環(huán)氧富鋅涂層中用5%的8-羥基喹啉替代鋅粉后,鋅粉溶解反應(yīng)的電荷轉(zhuǎn)移電阻Rct增加,且鋅粉/溶液界面雙電層電容Qdl降低,表明鋅粉的反應(yīng)過程被阻礙,因此,雖然涂層中鋅粉的含量有所降低,但是鋅粉的陰極保護(hù)作用時間卻明顯延長。另一方面,8-羥基喹啉改性后的環(huán)氧富鋅涂層的電阻Rc升高,電容Qc降低,涂層孔隙率P降低,涂層的屏蔽性增強(qiáng)，濟(jì)南8-羥基喹啉現(xiàn)價。上述兩方面的作用，濟(jì)南8-羥基喹啉現(xiàn)價,可以明顯改善涂層的保護(hù)性能，濟(jì)南8-羥基喹啉現(xiàn)價,延長涂層壽命。8-羥基喹啉普遍用于金屬的測定和分離。濟(jì)南8-羥基喹啉現(xiàn)價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南8-羥基喹啉現(xiàn)價,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788034990234/8563916.png"></div><p style="text-indent:25px">二氧化鈦改性8-羥基喹啉鋁對有機(jī)電致發(fā)光器件kang老化性能的提高：以二氧化鈦改性8-羥基喹啉鋁復(fù)合材料(TiO2-Alq3)為發(fā)光層制備了有機(jī)電致發(fā)光器件(OLED)。在器件未封裝條件下,復(fù)合材料TiO2-Alq3制備的器件較純Alq3制備的器件kang老化性能有所提高。通過化學(xué)計量比調(diào)控,當(dāng)鈦酸四丁酯與硫酸鋁的投料比為1∶10時制備的復(fù)合材料TiO2-Alq3可獲得kang老化性能比較好的OLED器件。在空氣中老化48h后,該器件亮度仍保持在起始亮度的89.7%,電流效率保持在起始值的76.6%,而純Alq3制備的OLED器件在同樣測試條件下已失活。濟(jì)南8-羥基喹啉現(xiàn)價8-羥基喹啉不溶于水和**，溶于乙醇、**、氯仿、苯或稀酸，能升華。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南8-羥基喹啉現(xiàn)價,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788216669921/4817126.png"></div><p style="text-indent:25px">喹啉類化合物可用于制取醫(yī)藥、染料、感光材料、橡膠、溶劑和化學(xué)試劑等。喹啉在醫(yī)藥上主要用于制造煙酸系、8-羥基喹啉系和奎寧系三大類藥物。煙酸系藥物有煙酸胺、強(qiáng)心劑、**和治絳蟲病藥;8-羥基喹啉系可用于制造醫(yī)治阿米巴蟲病用藥和創(chuàng)傷消毒劑，以及防霉劑和紡織助劑等;伯氨奎寧、氯化奎寧和羥氨奎寧則是合成的治瘧疾有效藥。異喹啉可用于制造殺蟲劑、抗瘧藥、橡膠硫化促進(jìn)劑和測定稀有金屬用的化學(xué)試劑。甲基喹啉可用于制造彩色膠片增感劑和染料，還可作為溶劑、浸漬劑、腐蝕阻抑劑、奎寧系藥物和殺蟲劑等。喹啉類化合物的提取工藝見重吡啶精制。</p><p style="text-indent:25px">如何測定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,近終點時加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。8-羥基喹啉的表征：在乙酸一鹽酸水溶液中，以鄰氨基苯酚、鄰硝基苯酚和丙烯醛為原料，合成了8-羥基喹啉。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南8-羥基喹啉現(xiàn)價,8-羥基喹啉" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788085585937/3359710.png"></div><p style="text-indent:25px">恒電位法電沉積聚8-羥基喹啉薄膜：采用恒電位法在鍍鎳工件表面制備聚8-羥基喹啉薄膜。研究了沉積電位、8-羥基喹啉濃度、NaOH濃度、沉積時間等工藝條件對薄膜耐蝕性的影響。分別采用鹽水周浸泡試驗、三氯化鐵縫隙試驗和Tafel極化曲線法對比研究了恒電位法電沉積試樣、循環(huán)伏安法電沉積試樣和空白工件的耐蝕性。采用掃描電鏡表征了聚8-羥基喹啉薄膜的表面形貌。恒電位法沉積的較佳工藝條件為:8-羥基喹啉2mmol/L,NaOH0.4mol/L,電位0.5V,時間300s,室溫。采用較好的工藝所得薄膜的耐蝕性略優(yōu)于循環(huán)伏安法試樣,遠(yuǎn)優(yōu)于空白工件。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,同時測定一些無機(jī)離子。濟(jì)南8-羥基喹啉現(xiàn)價</p><p style="text-indent:25px">8-羥基喹啉如果抽提的有機(jī)苯酚是黃色說明所有的VDR都已經(jīng)除去。濟(jì)南8-羥基喹啉現(xiàn)價</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)對環(huán)境可能有危害，對水體應(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）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。濟(jì)南8-羥基喹啉現(xiàn)價</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2546181.html</p></div></div></div></div></div><div id="baxjgx7" class="page-right twoColRt"><div id="jsu7tik" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="q3qhj32" 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) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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