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(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://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脂、醇酸樹脂、馬來(lái)酸等有機(jī)酸,也用作脂肪和油防腐劑等,不飽和聚酯樹脂、醇酸樹脂、、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://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://bj1866.cn We will provide you with wholehearted enthusiasm and welcome your visit!

相關(guān)新聞
超碰在线精品一区二区| 三级在线91| 干美女小穴视频在线| 黄α美女| 色婷婷久久蜜桃av| 婷婷婷久婷婷婷| 欧美国产色情一区二区三| 亚洲99综合在线精品视频| 成人精品911一区二区| 成人一区二区网址| 亚洲巨乳久爽一二三区| 久久久无码视频人妻| 蜜臀在线欧美| 大香蕉8在线视频| 找中文字幕一区二区人妻| 大香蕉日韩久久| 日本人妻有码在线视频| 日本加勒比道成人综合网 | 无码中字 第一页| 老鸨网成人视屏在线观看网站| 欧美女同一二区| 久久亚洲午夜片| 毛片18av| 国产男人天堂视频| 国产欧美日韩精品综合在线| 亚洲 九九| 国产一一区二区不卡久久| 欧美一区二区免费j| 999久久国产色一区| 国产精品久久久久久高清小米| 欧美亚洲精品一区二区三区在线| 国产成人高清超碰在线观看| 亚洲日本怡红院| 在线国产精品蜜臀| 91精品九色蜜桃久久二区三区| 五月婷婷丁香综合| 中文日本亚洲性色| 99久久久国产精品加勒比| 久热欧美视频| 国产视频久久嘿嘿大香蕉| 欧美日韩在线sm免费|