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://m.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
欧美激情床戏一区二区三| 国产精品免费福利在线| 加勒比日本欧美在线观看| 区一区二区三中文字幕| 午夜免费精品视频在线看| 人妻精品一区二区三区视频免精| 麻豆欧美精品国产综合久久| 国产内射在线激情一区| 精品国自产拍天天青青草原| 无套内射美女视频免费在线观看| 黄男女激情一区二区三区| 色一欲一性一乱—区二区三区| 久久99爱爱视频视频| 欧美自拍偷自拍亚洲精品| 99久热只有精品视频免费看| av在线免费观看在线免费观看| 国产综合欧美日韩在线精品| 国产精品午夜一区二区三区| 日韩1区二区三区麻豆| 女人高潮被爽到呻吟在线观看| 亚洲天堂国产精品久久精品| 日韩精品中文字幕亚洲| 少妇特黄av一区二区三区| 久久久免费精品人妻一区二区三区| 99热中文字幕在线精品| 九九热视频免费在线视频| 一区二区三区人妻在线| 日韩欧美国产亚洲一区| 中文字幕日韩一区二区不卡| 日本大学生精油按摩在线观看| 麻豆最新出品国产精品| 99热在线精品视频观看| 丁香七月啪啪激情综合| 麻豆91成人国产在线观看| 亚洲中文字幕综合网在线| 亚洲国产香蕉视频在线观看| 老司机精品福利视频在线播放| 美国女大兵激情豪放视频播放| 国内自拍偷拍福利视频| 中文字幕欧美精品人妻一区| 国产内射一级一片内射高清视频|