蜜臀一区二区三区,盗摄,天天干,天天日,无码gif

你好,歡迎訪問濟南金昊化工有限公司!

專注品質(zhì),信賴服務

我們用心做產(chǎn)品服務

咨詢熱線:

13655318786

公司新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>公司新聞二氯甲烷的沸點是多少 二氯甲烷的性質(zhì)是什么?

二氯甲烷的沸點是多少 二氯甲烷的性質(zhì)是什么?

來源:http://www.bj1866.cn/ 日期:2021-04-23 發(fā)布人: 瀏覽次數(shù):0
關于到現(xiàn)在二氯甲烷的沸點是多少二氯甲烷的性質(zhì)和用途這個話題,相信很多小伙伴都是非常有興趣了解的吧,因為這個話題也是近期非常火熱的。
As for the boiling point of dichloromethane up to now, I believe many small partners are very interested in this topic, because this topic is also very hot recently.
那么既然現(xiàn)在大家都想要知道二氯甲烷的沸點是多少二氯甲烷的性質(zhì)和用途,小編也收集了相關的信息,那么下面分享給大家一起了解下吧。
Now that we all want to know the boiling point of dichloromethane, the properties and uses of dichloromethane, Xiaobian has also collected relevant information, let's share it with you.
二氯甲烷的沸點
Boiling point of dichloromethane
二氯甲烷的沸點為39.8攝氏度,熔點為-97攝氏度,相對密度為1.33,微溶于水,溶于乙醇和乙醚。二氯甲烷是甲烷氯化物中毒性小的。如果二氯甲烷直接濺入眼中,有疼痛感并有腐蝕作用。二氯甲烷的蒸汽有麻醉作用。
The boiling point of dichloromethane is 39.8 ℃, melting point is - 97 ℃, relative density is 1.33, slightly soluble in water, soluble in ethanol and ether. Dichloromethane is less toxic than methane chloride. If dichloromethane is splashed directly into the eye, it will cause pain and corrode. The vapor of dichloromethane has an anesthetic effect.
二氯甲烷的性質(zhì)
Properties of dichloromethane
二氯甲烷,分子式CH2Cl2,一種有芳香氣味,比水重,易揮發(fā)的無色透明液體,是不可燃低沸點溶劑,常用來代替易燃的石油醚、乙醚等。世界衛(wèi)生組織癌癥研究機構將它公布為致癌物。二氯甲烷還被列入有毒有害大氣污染物名錄和有毒有害水污染物名錄。
Dichloromethane, molecular formula CH2Cl2, is a colorless transparent liquid with aromatic odor, heavier than water, and easy to volatilize. It is a non combustible low boiling point solvent. It is often used to replace flammable petroleum ether, ether, etc. Who International Agency for research on cancer has declared it a carcinogen. Dichloromethane is also listed in the list of toxic and harmful air pollutants and toxic and harmful water pollutants.
二氯甲烷的用途
Application of dichloromethane
1、用于制造電影膠片、聚碳酸酯,其余用作涂料溶劑、金屬脫脂劑,氣煙霧噴射劑、聚氨酯發(fā)泡劑、脫模劑、脫漆劑。
1. It is used for manufacturing safety film and polycarbonate, and the rest is used as coating solvent, metal degreaser, aerosol spray agent, polyurethane foaming agent, demoulding agent and paint stripper.
2、在制藥工業(yè)中做反應介質(zhì),用于制備氨芐青霉素、羥芐青霉素和先鋒霉素等。
2. It is used as reaction medium in pharmaceutical industry to prepare ampicillin, hydroxybenzylpenicillin and vancomycin.
3、用在工業(yè)制冷系統(tǒng)中用作載冷劑使用,但危害很大。
3. It is used as refrigerant in industrial refrigeration system, but it is harmful.
4、用于谷物熏蒸和低壓冷凍機及空調(diào)裝置的制冷。
4. It is used for grain fumigation and refrigeration of low pressure freezer and air conditioner.

相關新聞
亚洲AV无码天堂一区二区三区| 久久久丝袜| 日韩高清无码一区二区三区| 呦呦免费在线| 特色的日韩无码| 精品欧美一二三区| 国产精品久久久久久久久粉嫩| 欧美视频亚洲视频香蕉视频| 在线86AV| 人妻一区在线| 欧美日韩网| 国产欧美日韩精品成人专区| 欧美国产精品久久五月天一区二区| 草民久久| 亚洲熟女一区二区三区| 国产香蕉尹人综合在线观看| 欧美日韩后| 性色av一区二区三区久久久| heyzo高无码综合精品专区| 亚洲日韩欧美制服二区DvD| 亚州一本之道久久| 91视频高情| 五月丁香花综合久久综合| 最新日韩高清无码| 伊人国产在线| 色蜜桃| 国色天香十七区品质怎么样| 最新国产精品| 中文字幕成人| 国产精品一区二区久久| 东京热无码一区二区三区av| 欧美日韩品中久字幕一区二区三区| www.日韩| 欧美日韩精品一二三区| 精品日韩一区二区| 簧片在线| 婷婷中文网| 午夜精品久久久久| 婷五月福利| 欧美日韩亚洲√| 人妻丰满熟妇av无码区一乱码|