97人人模人人爽人人少妇,一区二区二区无码视频,日韩女优精品,囯产精品第二页

你好,歡迎訪問濟南金昊化工有限公司!

專注品質,信賴服務

我們用心做產品服務

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.bj1866.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、堿性電解質蓄電池等方面也有應用。
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)轉移:用玻璃棒引流轉入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。嚴禁與易燃物或可燃物、酸類、食用化學品等混裝混運。運輸時運輸車輛應配備泄漏應急處理設備;
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、通風良好的庫房。遠離火種、熱源。庫內濕度更好不大于85%。包裝必須密封,切勿受潮。應與易(可)燃物、酸類等分開存放,切忌混儲。儲區(qū)應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.

相關新聞
免费无码A一区| 久久婷婷五月天成人影院| 全球精品一级黄片| 大香蕉在线视频在线视频| 成人激情久久久| 午夜成人免费福利网| 欧美日本A一区二区视频| 激情成人在线观看一区二区| 国产一七在线观看| 日韩精品视频久久久久久久亚洲| 操熟女导航| 国产性综合视频| 簧色成人AV| 精品国产91久久久久久无码蜜| 欧美偷拍另| 久久久精品免费播放| 韩国午夜精品久久久| 熟女五十路91视频| 亚洲欧美日韩视频图片一区二区| 干我欧美一区| 久久精品黄片儿| 国产精品久久久幺幺幺幺幺幺| www.调教| 日韩美女艹BAV| 久久久无码人妻系列视频| 美妇人妻无码视频在线观看| 嗯嗯啊日本在线观看| 亚洲天堂久久播放| 黄色I极片久久| 国产黄色午夜精品| 日本一区二区免费补卡| 久久99日本免费国产精品| 山丹县| 真实国产熟女一区二区三区| 亚洲区久久.xy| 日本一二三区精品| 看黄色三级片视频| 久艹在线视屏| 国产一区无码成人在线观看| 国产美女销魂一区二区| 男人天堂AV2028|