97人人模人人爽人人少妇,欧美日韩精品无广告在线观看,中文字幕无码一区二区三区四区五,精品久久国电影

你好,歡迎訪問(wèn)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

常見(jiàn)問(wèn)題

您現(xiàn)在的位置: 網(wǎng)站首頁(yè)>>新聞中心>>常見(jiàn)問(wèn)題順酐在使用過(guò)程中的作用是什么?

順酐在使用過(guò)程中的作用是什么?

來(lái)源:http://m.bj1866.cn/ 日期:2023-11-10 發(fā)布人: 瀏覽次數(shù):0
順酐全名為順丁烯二酸酐,又稱為馬來(lái)酸酐,是一種有強(qiáng)烈刺激氣味的無(wú)色結(jié)晶粉末,于1834年由蘋果酸得到。早期,順丁烯二酸酐是通過(guò)苯的催化氧化制備,但為了降低成本,改用正丁烷氧化法制取。
Maleic anhydride, also known as maleic anhydride, is a colorless crystalline powder with a strong pungent odor, first obtained from malic acid in 1834. In the early days, maleic anhydride was prepared through the catalytic oxidation of benzene, but in order to reduce production costs, the method of n-butane oxidation was used to produce it.
順酐由苯經(jīng)催化氧化或由丁烯或丁烷用空氣氧化而制得,溶于乙醇、乙醚和丙酮,難溶于石油醚和四氯化碳,與熱水作用而成馬來(lái)酸;
Maleic anhydride is obtained by catalytic oxidation of benzene or oxidation of butene or butane with air. It is soluble in ethanol, ether, and acetone, but insoluble in petroleum ether and carbon tetrachloride. It reacts with hot water to form maleic acid;
順酐廠家
順酐的外觀是白色片狀結(jié)晶,有粉末狀、針狀、片狀、丸狀、棒狀、團(tuán)塊狀或熔融物質(zhì),相對(duì)密度是1.480,熔點(diǎn)在52.8℃,沸點(diǎn)是202.2℃,閃點(diǎn):110.0℃。
The appearance of maleic anhydride is a white crystalline flake, consisting of powder like, needle like, flake like, pellet like, rod like, agglomerate like or molten substances. The relative density is 1.480, the melting point is 52.8 ℃, the boiling point is 202.2 ℃, and the flash point is 110.0 ℃.
順酐的作用:用于雙烯合成、制藥物、農(nóng)藥、染料中間體及制聚酯樹(shù)脂、醇酸樹(shù)脂、馬來(lái)酸等有機(jī)酸,也用作脂肪和油防腐劑等,不飽和聚酯樹(shù)脂、醇酸樹(shù)脂、、長(zhǎng)效碘胺的原料。也是涂料、馬來(lái)松香、聚馬來(lái)酐、順酐-苯乙烯共聚物的共聚單體,也是油墨助劑、造紙助劑、增塑劑、酒石酸、富馬酸、四氫呋喃等的有機(jī)化工原料。
The function of maleic anhydride: used in the synthesis of dienes, pharmaceuticals, pesticides, dye intermediates, as well as in the production of organic acids such as polyester resin, alkyd resin, maleic acid, etc. It is also used as a preservative for fats and oils, and as a raw material for the production of unsaturated polyester resin, alkyd resin, and long-acting iodamine. It is also a comonomer of coatings, maleic rosin, polymaleic anhydride, and maleic anhydride styrene copolymers, and an organic chemical raw material for the production of ink additives, paper making additives, plasticizers, tartaric acid, fumaric acid, tetrahydrofuran, etc.
本文由順酐廠家為您提供,我們的網(wǎng)站是:http://m.bj1866.cn將以全心全意的熱情為您提供服務(wù),歡迎您的訪問(wèn)!
This article is provided by the maleic anhydride manufacturer for you, and our website is: http://m.bj1866.cn We will provide you with wholehearted enthusiasm and welcome your visit!

相關(guān)新聞
同学一二三区| 午亱Av在线播放| 精品欧美一区二区三区免费视频| 天天干熟妇| 性生活久久| 女生被男生捅爽| 精品秘 无码一区二区三| 国产欧美日韩成人在线观看| 国产区一三级在线| 日韩欧美一区二区在线免费| 中文日韩无码欧| 午夜久久精品| 精选91久久999| 人妻激情亚洲福利| 色噜噜国产日韩欧美精品| 五月婷婷激情丁香| 亚洲综合图片视频国产| 天天干高清无码在线观看| 国产欧美第八页| 国产又大又长又粗又黄| 麻豆AV成人在线观看| 好的视频一区二区三区| 97超碰 日韩无码| 国产桃色午夜福利视频在线观看| 午夜亚洲精品久电影院| 曰曰曰啪天天天爽| 日日操天天操| 日韩av一线二线网站| caoporn超碰最新进入| 久久内色| 久久久久999三级片| 歐美一二區| 色欲av夜夜嗨av性色av| 中文字幕日韩精品欧美一区口| 国产丝袜一区| 亚洲国产精品www在线观看| 久久艹精品少妇| 欧美一级黄色片网站区| 亚洲色色日韩| 91色地址发布页| 16p日韩无码|