欧美1314免费大片,日韩精品一区日韩在线,久久人人妻人人做人人爽,亚欧美一区二区三区

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

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(diǎn)是多少 二氯甲烷的性質(zhì)是什么?

二氯甲烷的沸點(diǎn)是多少 二氯甲烷的性質(zhì)是什么?

來源:http://www.myxshdh.cn/ 日期:2021-04-23 發(fā)布人: 瀏覽次數(shù):0
關(guān)于到現(xiàn)在二氯甲烷的沸點(diǎn)是多少二氯甲烷的性質(zhì)和用途這個(gè)話題,相信很多小伙伴都是非常有興趣了解的吧,因?yàn)檫@個(gè)話題也是近期非?;馃岬?。
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(diǎn)是多少二氯甲烷的性質(zhì)和用途,小編也收集了相關(guān)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(diǎn)
Boiling point of dichloromethane
二氯甲烷的沸點(diǎn)為39.8攝氏度,熔點(diǎn)為-97攝氏度,相對(duì)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(diǎn)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(jī)構(gòu)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(yīng)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(jī)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(guān)新聞
99久久精品久久免费| 亚洲高清亚洲欧美一区二区| av中文字幕一区二区三区在线| 国产一级不卡视频在线观看| 国产又大又黄又粗的黄色| 亚洲欧美日韩在线看片| 欧美欧美欧美欧美一区| 中国美女偷拍福利视频| 伊人欧美一区二区三区| 久久福利视频在线观看| 亚洲欧美一二区日韩高清在线| 男人操女人下面国产剧情| 久久99午夜福利视频| 九九久久精品久久久精品| 欧美午夜一级艳片免费看| 欧美国产日产在线观看| 日本高清中文精品在线不卡| 东京干男人都知道的天堂| 久久碰国产一区二区三区| 风间中文字幕亚洲一区| 好吊色免费在线观看视频| 儿媳妇的诱惑中文字幕| 蜜桃传媒在线正在播放| 日韩高清毛片免费观看| 免费观看一级欧美大片| 亚洲淫片一区二区三区| 日本黄色高清视频久久| 久久精视频免费视频观看| 91欧美日韩国产在线观看| 东京热男人的天堂社区| 亚洲国产黄色精品在线观看| 国产av熟女一区二区三区蜜桃| 国产小青蛙全集免费看| 人妻人妻人人妻人人澡| 欧美激情一区=区三区| 91天堂素人精品系列全集| 国产又猛又大又长又粗| 久久亚洲精品中文字幕| 日本淫片一区二区三区| 色婷婷视频在线精品免费观看| 亚洲视频一区自拍偷拍另类|