国产性猛交xxxx免费看久久,日韩有色视频在线观看,国产福利亚洲天堂久久,国产精品久久久久久久精品三级

你好,歡迎訪問濟(jì)南金昊化工有限公司!

專注品質(zhì),信賴服務(wù)

我們用心做產(chǎn)品服務(wù)

咨詢熱線:

13655318786

行業(yè)新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>行業(yè)新聞氫氧化鉀乙醇溶液如何配制?

氫氧化鉀乙醇溶液如何配制?

來源:http://www.gzuvafuz.cn/ 日期:2021-03-04 發(fā)布人: 瀏覽次數(shù):0
順酐廠家告訴你氫氧化鉀乙醇溶液配置方法以及氫氧化鉀溶液儲存要求。氫氧化鉀的分子式為KOH,又稱苛性鉀,一種強堿性化工原料。常用于制取碳酸鉀(電視顯像管用玻璃和特種玻璃)、軟肥皂、清潔劑和顏料等,在電鍍、堿性電解質(zhì)蓄電池等方面也有應(yīng)用。
Maleic anhydride manufacturers tell you the preparation method of potassium hydroxide ethanol solution and the storage requirements of potassium hydroxide solution. The molecular formula of potassium hydroxide is Koh, also known as caustic potassium, a strong alkaline chemical raw material. It is often used to make potassium carbonate (glass for TV picture tube and special glass), soft soap, detergent and pigment, etc. it is also used in electroplating, alkaline electrolyte battery, etc.
配制0.1mol/L氫氧化鉀500ml步驟:(1)計算:0.1mol/L*0.5L*56g/mol=2.8g(2)稱量:稱氫氧化鉀2.8g(3)溶解:固體放入小燒杯,加少量蒸餾水溶解,用玻璃棒攪拌(4)冷卻:室溫(5)轉(zhuǎn)移:用玻璃棒引流轉(zhuǎn)入500ml容量瓶(6)洗滌:用蒸餾水洗滌燒杯,玻璃棒2-3次,洗滌液也轉(zhuǎn)入容量瓶(7)搖動:搖動容量瓶讓溶液混合均勻(8)定容:加蒸餾水離刻度線1-2cm時,改用膠頭滴管滴加蒸餾水,到平視時凹液面的切線與刻度線重合時結(jié)束。(9)搖勻:震蕩容量瓶(10)裝瓶:裝入潔凈干燥的試劑瓶,貼上標(biāo)簽。
Preparation of 0.1mol/l potassium hydroxide 500ml steps: (1) calculation: 0.1mol/l * 0.5L * 56g / mol = 2.8g (2) weighing: 2.8g potassium hydroxide (3) dissolving: put the solid into a small beaker, add a small amount of distilled water to dissolve, stir with a glass rod (4) cooling: to room temperature (5) transferring: drain with a glass rod into a 500ml volumetric flask (6) washing: wash the beaker with distilled water, glass rod 2-3 times, The washing solution is also transferred into the volumetric flask (7) shaking: shaking the volumetric flask to make the solution mix evenly (8) constant volume: add distilled water to 1-2cm away from the scale line, use a rubber tipped dropper to drop distilled water until the tangent line of concave liquid level coincides with the scale line in head up view. (9) Shake well: shake volumetric flask (10) bottling: put clean and dry reagent bottle and label.
氫氧化鉀溶液儲存要求
Storage requirements of potassium hydroxide solution
1、運輸注意事項:鐵路運輸時,鋼桶包裝的可用敞車運輸。起運時包裝要完整,裝載應(yīng)穩(wěn)妥。運輸過程中要確保容器不泄漏、不倒塌、不墜落、不損壞。嚴(yán)禁與易燃物或可燃物、酸類、食用化學(xué)品等混裝混運。運輸時運輸車輛應(yīng)配備泄漏應(yīng)急處理設(shè)備;
1. Transportation precautions: during railway transportation, the steel drum can be transported by gondola car. The packing should be complete and the loading should be safe. During transportation, ensure that the container does not leak, collapse, fall or damage. It is strictly forbidden to mix with inflammables or inflammables, acids, edible chemicals, etc. Transportation vehicles should be equipped with leakage emergency treatment equipment during transportation;
2、儲存注意事項:儲存于陰涼、干燥、通風(fēng)良好的庫房。遠(yuǎn)離火種、熱源。庫內(nèi)濕度更好不大于85%。包裝必須密封,切勿受潮。應(yīng)與易(可)燃物、酸類等分開存放,切忌混儲。儲區(qū)應(yīng)備有合適的材料收容泄漏物;
2. Storage precautions: store in a cool, dry and well ventilated warehouse. Keep away from fire and heat source. The humidity in the warehouse should not be more than 85%. The package must be sealed and free from moisture. It should be stored separately from combustible materials and acids, and mixed storage should be avoided. The storage area should be equipped with suitable materials to contain the leakage;
3、包裝方法:固體可裝入0.5毫米厚的鋼桶中嚴(yán)封,每桶凈重不超過100公斤;塑料袋或二層牛皮紙袋外全開口或中開口鋼桶;螺紋口玻璃瓶、鐵蓋壓口玻璃瓶、塑料瓶或金屬桶(罐)外普通木箱;螺紋口玻璃瓶、塑料瓶或鍍錫薄鋼板桶(罐)外滿底板花格箱、纖維板箱或膠合板箱;鍍錫薄鋼板桶(罐)、金屬桶(罐)、塑料瓶或金屬軟管外瓦楞紙箱。
3. Packing method: solid can be packed in 0.5 mm thick steel drum and sealed tightly, net weight of each drum is not more than 100 kg; plastic bag or two-layer kraft paper bag with full opening or middle opening steel drum; screw mouth glass bottle, iron cap pressure mouth glass bottle, plastic bottle or metal barrel (can) with ordinary wooden case; screw mouth glass bottle, plastic bottle or tinplate barrel (can) with full bottom lattice box and fiberboard Box or plywood box; tinplate barrel (can), metal barrel (can), plastic bottle or metal hose corrugated box.

相關(guān)新聞
少妇一区二区三区粉嫩av-国产精品区久久久久久久| 亚洲最新国产无人区123-黄片一区二区在线观看| 亚洲国产中文欧美一区二区三区-国产精品一区二区视频成人| 夜夜久久国产精品亚州av-欧美大屁股一区二区三区| 久久网站中文字幕精品-三级精品久久中文字幕| 99久久精品一区二区成人-麻豆国产av玩弄放荡人妇系列| 亚洲一区二区免费av-中文字幕人妻久久久一区二区三区| 国产精品成人欧美激情-黄色床上完整版高清无遮挡| 欧美精品国产系列一二三国产真人-在线观看国产午夜视频| 91精品国产影片一区二区三区-欧美精品久久久精品一区二区| 亚洲另类熟女国产精品-懂色一区二区三区在线播放| 亚洲一区精品一区在线观看-日本久久久一区二区三区| 天天干天天干2018-91人妻人人澡人爽精品| 熟女少妇免费一区二区-麻豆一区二区三区免费在线观看| 狠狠狠狠爱精品一二三四区-l舌熟女av国产精品| 深夜三级福利在线播放-日韩精品一区二区在线天天狠天| 欧洲精品一区二区三区中文字幕-91久久国产综合久久蜜月精品| 亚洲欧洲一区二区福利-亚洲欧美日韩高清中文| 久久精品亚洲无中文东京热-日本妹子内谢视频一区| 一区二区三区女同性恋-熟妇高潮一区二区高清网络视频| 在线国产自偷自拍视频-蜜桃a∨噜噜一区二区三区| 亚洲日本一区二区三区黄色电形-中文字幕乱码免费熟女| 午夜福利卫生纸福利院-一区二区三区久久亚洲| mm在线精品视频在线观看-欧美国产日韩在线一区二区三区| 精品少妇一区二区18-一区二区三区日韩在线播放| 午夜福利院免费在线观看-久久精品日产第一区二区三区画质| 亚洲精品蜜桃在线观看-国产欧美日韩在线观看精品观看| 欧美精品国产白浆久久正在-国产精彩视频一区二区三区| 中文不卡一区二区三区-老司机在线老司机在线一区| 久久夜色精品亚洲噜国产av-大香蕉伊人猫咪在线观看| 亚洲产国偷v产偷v自拍性色av-亚洲欧美日韩国产三区| 在线国产自偷自拍视频-蜜桃a∨噜噜一区二区三区| 国产午夜精品理论片A级漫画-久久精品国产99亚洲精品| 中文字幕日韩不卡久久-五月天中文字幕啊av| 精品国产综合一区二区三区-蜜臀一区二区三区刺激视频| 国产一区二区三区噜噜-精品久久亚洲一区二区欧美| 男人的天堂久久精品激情-最新亚洲精品a国产播放| 中文字幕精品一区二区日本99-青青国产成人久久91网| 两性污污视频网站在线观看-亚洲欧美日韩激情一区| 婷婷综合在线视频观看-亚洲一区二区三区香蕉| 亚洲综合av一区二区三区-高潮又爽又黄无遮挡激情视频|