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,歡迎訪問濟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>>公司新聞順丁烯二酸酐是通過苯的催化氧化制備!

順丁烯二酸酐是通過苯的催化氧化制備!

來源:http://bj1866.cn/ 日期:2023-10-13 發(fā)布人: 瀏覽次數(shù):0
順酐全名為順丁烯二酸酐,又稱為馬來酸酐,是一種有強烈刺激氣味的無色結(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;
順酐的外觀是白色片狀結(jié)晶,有粉末狀、針狀、片狀、丸狀、棒狀、團塊狀或熔融物質(zhì),相對密度是1.480,熔點在52.8℃,沸點是202.2℃,閃點:110.0℃。
順酐廠家
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、馬來酸等有機酸,也用作脂肪和油防腐劑等,不飽和聚酯樹脂、醇酸樹脂、長效碘胺的原料。也是涂料、馬來松香、聚馬來酐、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 iodoamine. 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.
本文由順酐廠家友情奉獻.更多有關(guān)的知識點擊:http://bj1866.cn我們將用真誠的態(tài)度.為您提供為的服務(wù).更多有關(guān)的知識我們將會陸續(xù)向大家奉獻.敬請期待.
This article is a friendly contribution from maleic anhydride manufacturers. For more relevant knowledge, click on: http://bj1866.cn We will provide you with comprehensive services with a sincere attitude. We will gradually contribute more relevant knowledge to everyone. Stay tuned

相關(guān)新聞
88AV精品视频| 黑人后入无码| 午夜侵犯久久电影| 大香蕉一人久久| 肏逼九九美女视频| 大香蕉欧美成人在线| 欧美亚洲日韩片| 欧韩精品视频在线观看885| 91丨九色丨海角社区| 日韩人妻热| 丰满少妇,粗大猛烈进高清播报| 97人妻人人揉人人躁人人免费| 有没有好看的黄色在线视频| 日韩AV色酷久久| 密臂成人黄版| 久久综合色鬼网站| 色五月婷婷日韩| 亚州色婷婷| 国产1区2区麻豆| 亚洲久久无码图片| 天天操夜夜操夜夜奸一区二区、| 欧美特黄免费看| 欧美 日韩 图片一区二区| 色色爽精品| 中文国产大胸麻豆在视频| 久久肏精品一区| 91视频亚洲精品国产一区二区| 制服无码久久精品| 国产精品影视一区中文字幕| 欧美一区二区三区一起| 熟女精品久爱| 婷婷五月天激情四射在线| 国产精品自产拍高潮在线观看| 欧美图区色色天| 欧美日韩很黄| 色大师av国产在线| 亚色真人无码在线视频大全| 超碰欧美粉嫩| 青青草原800av东方| 精品久久久视频看看| 超碰小香蕉|