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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ut33s4r" 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>山東巴斯夫1-2丙二胺質(zhì)量,巴斯夫1-2丙二胺</p><p><span>***更新：</span>2020-12-05 05:20:22</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3hgikri" 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="8r88nhy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3sbszlc" class="box"><p><p style="text-indent:25px">1,2—丙二胺—亞硝酸鹽體系中鉻的催化極譜測(cè)定：在0.1M亞硝酸鈉,1.5×10-3M的1,2-丙二胺,pH9.0—9.5底液中鉻在—1.76伏處（對(duì)飽和甘汞電極）產(chǎn)生-催化波,測(cè)定范圍在0.1ng/ml內(nèi),鉻的濃度與導(dǎo)數(shù)波高成良好線性關(guān)系,測(cè)定下限為8×10-10M（相當(dāng)于0.04ng/ml）。經(jīng)實(shí)驗(yàn)證明,在1,2-丙二胺-亞硝酸鹽或硝酸鹽兩體系中，山東巴斯夫1-2丙二胺質(zhì)量,鉻都在—1.76伏處產(chǎn)生催化波,因此，山東巴斯夫1-2丙二胺質(zhì)量,可認(rèn)為鉻的催化機(jī)理可能與文獻(xiàn)[3]報(bào)道的在CyDTA-NO3體系中三價(jià)鉻產(chǎn)生催化波的機(jī)理相似即: Cr6++3e—→Cr3+; Cr3++y—→Cr3+—y; Cr2+—y+e—→C2+—y; Cr2+—y+NO3—→Cr3+—y+No2-其中:y**1,2-丙二胺。將自來水進(jìn)行簡(jiǎn)單的前處理后，山東巴斯夫1-2丙二胺質(zhì)量,可以直接應(yīng)用本法測(cè)定水中六價(jià)、三價(jià)鉻的含量以及水中的總鉻量。1，2丙二胺用于生產(chǎn)選礦藥劑、金屬鈍化劑、舫空用樹脂固化劑、橡膠硫化促進(jìn)劑。山東巴斯夫1-2丙二胺質(zhì)量</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東巴斯夫1-2丙二胺質(zhì)量,巴斯夫1-2丙二胺" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623139557026/4960577.png"></div><p style="text-indent:25px">1，2丙二胺計(jì)算化學(xué)數(shù)據(jù)：疏水參數(shù)計(jì)算參考值（XlogP）:-1.22.氫鍵供體數(shù)量:2；氫鍵受體數(shù)量:2；可旋轉(zhuǎn)化學(xué)鍵數(shù)量:1；互變異構(gòu)體數(shù)量:無；拓?fù)浞肿訕O性表面積52；重原子數(shù)量:5；表面電荷:0；復(fù)雜度:20.9；同位素原子數(shù)量:0；確定原子立構(gòu)中心數(shù)量:0；不確定原子立構(gòu)中心數(shù)量:1；確定化學(xué)鍵立構(gòu)中心數(shù)量:0；不確定化學(xué)鍵立構(gòu)中心數(shù)量:0；共價(jià)鍵單元數(shù)量:1?；瘜W(xué)性質(zhì)為吸濕性強(qiáng)的堿性液體?；瘜W(xué)性質(zhì)和乙二胺相似。有光學(xué)異構(gòu)體，但通常以外消旋體存在。具有強(qiáng)堿性和強(qiáng)吸濕性，與空氣接觸產(chǎn)生白色煙霧。遇明火、高熱或與氧化劑接觸，有引起燃燒的危險(xiǎn)。受熱分解放出有毒的氧化氮煙氣。若遇高熱，容器內(nèi)壓增大，有開裂和的危險(xiǎn)?；窗舶退狗?-2丙二胺什么品牌比較好精制時(shí)用金屬鈉、無水硫酸鈣等脫水后進(jìn)行減壓蒸餾。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東巴斯夫1-2丙二胺質(zhì)量,巴斯夫1-2丙二胺" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623358963194/4103218.png"></div><p style="text-indent:25px">1，2丙二胺易燃，遇明火、高熱或與氧化劑接觸，有引起燃燒的危險(xiǎn)；受熱分解釋放出有毒的氧化氮煙氣；能腐蝕銅及其合金。健康危害：本品對(duì)薪膜、上呼吸道、眼睛和皮膚有強(qiáng)烈刺激性。吸入后，可因喉及支氣管的痙攣、炎癥、水腫，化學(xué)性肺炎或肺水腫而致死。較長(zhǎng)時(shí)間接觸對(duì)皮膚有強(qiáng)烈刺激性或引起灼傷。防護(hù)措施：呼吸系統(tǒng)防護(hù)：可能接觸其蒸氣時(shí)，應(yīng)該佩戴自吸過濾式防毒面具(多方面罩)。眼睛防護(hù)：呼吸系統(tǒng)防護(hù)中已作防護(hù)。身體防護(hù)：穿橡膠耐酸堿服。防護(hù)：戴橡膠耐油手套。其他防護(hù)：工作現(xiàn)場(chǎng)禁止吸煙、進(jìn)食和飲水。工作完畢，淋浴更衣。實(shí)行就業(yè)前和定期的體檢。危險(xiǎn)性類別：易燃液體，類別3；皮膚腐蝕/刺激，類別1A；嚴(yán)重眼損傷/眼刺激，類別1。</p><p style="text-indent:25px">1，2丙二胺用于生產(chǎn)選礦藥劑、金屬鈍化劑、舫空用樹脂固化劑、橡膠硫化促進(jìn)劑,還用于染料、電鍍和分析試劑(汞、銅和銀的檢定)。醫(yī)藥工業(yè)中用于生產(chǎn)1,2-丙二胺四乙酸,作為抗ai藥丙亞胺的中間體。本品用作航空用樹脂固化劑、橡膠硫化促進(jìn)劑以及選礦藥劑、金屬鈍化劑,也用于染料、電鍍等方面的制造原料,本品還用作分析試劑。用作硝酸纖維素、涂料、植物油和松香等的溶劑。用作航空用樹脂固化劑、橡膠硫化促進(jìn)劑以及選礦藥劑、金屬鈍化劑,也用于染料、電鍍、分析試劑等方面。.用作橡膠促進(jìn)劑、添加劑、溶劑、分析試劑,以及用于染料、藥物等的制造。1,2-丙二胺作為有機(jī)胺類化合物重要一員。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東巴斯夫1-2丙二胺質(zhì)量,巴斯夫1-2丙二胺" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623299176176/6593730.png"></div><p style="text-indent:25px">氣相色譜法測(cè)定維生素K_1注射劑中1,2-丙二醇的含量：目的建立GC法測(cè)定維生素K1注射劑中1,2-丙二醇的含量.方法采用Agilent DB-WAX氣相毛細(xì)管柱(0.32mm×30 m,0.25μm),FID檢測(cè)器,程序升溫:80℃維持1 min,再以10℃min-1升溫至230℃維持4 min,進(jìn)樣口溫度:230℃,檢測(cè)器溫度:250℃.結(jié)果維生素K1注射劑中1,2-丙二醇在0.102 5~4.099 8 mg mL-1與峰面積呈良好線性關(guān)系(r=0.999 9),平均回收率為97.5%,RSD為0.40%(n=9).結(jié)論本方法準(zhǔn)確度高,重現(xiàn)性好,可用于維生素K1注射劑中1,2-丙二醇含量的測(cè)定。1，2丙二胺較長(zhǎng)時(shí)間接觸對(duì)皮膚有強(qiáng)烈刺激性或引起灼傷。泰州巴斯夫1-2丙二胺批發(fā)便宜嗎</p><p style="text-indent:25px">1，2-丙二胺是一種有廣闊發(fā)展前景的有機(jī)化工和精細(xì)化學(xué)品。山東巴斯夫1-2丙二胺質(zhì)量</p><p style="text-indent:25px">1，2丙二胺操作注意事項(xiàng)：操作人員應(yīng)經(jīng)過專門培訓(xùn)，嚴(yán)格遵守操作規(guī)程。操作處置應(yīng)在具備局部通風(fēng)或多方面通風(fēng)換氣設(shè)施的場(chǎng)所進(jìn)行。避免眼和皮膚的接觸，避免吸入蒸汽。個(gè)體防護(hù)措施參見第8部分。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。如需罐裝，應(yīng)控制流速，且有接地裝置，防止靜電積聚。避免與氧化劑等禁配物接觸（禁配物參見第10部分）。搬運(yùn)時(shí)要輕裝輕卸，防止包裝及容器損壞。倒空的容器可能殘留有害物。使用后洗手，禁止在工作場(chǎng)所進(jìn)飲食。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。山東巴斯夫1-2丙二胺質(zhì)量</p><p style="text-indent:25px">上海蔚云化工有限公司是一家化工產(chǎn)品（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）、化工機(jī)械設(shè)備及配件的銷售，在化工技術(shù)領(lǐng)域內(nèi)從事技術(shù)開發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)服務(wù)、技術(shù)咨詢?！疽婪毥?jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng)】的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。上海蔚云化工深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺。上海蔚云化工始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。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>文章來源地址: http://m.cdcfah.com/cp/2273112.html</p></div></div></div></div></div><div id="8vcev7d" class="page-right twoColRt"><div id="nhzr2sm" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jtv73eg" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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