深山猎户粗大hh蜜婉,高洁在公车被灌满jing液,国产精品videossex久久发布,精品国产乱码久久久久久1区2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

行業(yè)新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>行業(yè)新聞順丁烯二酸酐的性質(zhì)與穩(wěn)定性

順丁烯二酸酐的性質(zhì)與穩(wěn)定性

來源:http://www.zhaoxwol.com/ 日期:2021-04-19 發(fā)布人: 瀏覽次數(shù):0
順丁烯二酸酐,又名馬來酸酐或失水蘋果酸酐,常簡(jiǎn)稱順酐。分子式為C4H2O3,分子量為98.06。無色結(jié)晶,有強(qiáng)烈刺激氣味,凝固點(diǎn)52.8℃,沸點(diǎn)202℃,易升華。主要由苯或碳四餾分中的正丁烷或丁烯氧化而制得,是不飽和聚酯及有機(jī)合成的原料。
Maleic anhydride, also known as maleic anhydride or dehydrated malic anhydride, is often referred to as maleic anhydride. The molecular formula is c4h2o3 and the molecular weight is 98.06. Colorless crystal, strong pungent smell, freezing point 52.8 ℃, boiling point 202 ℃, easy sublimation. It is mainly prepared by oxidation of n-butane or butene in benzene or C4 fraction. It is the raw material for the production of unsaturated polyester and organic synthesis.
性質(zhì)與穩(wěn)定性
Properties and stability
1.避免接觸潮濕空氣。避免與強(qiáng)氧化劑、強(qiáng)還原劑、強(qiáng)酸、強(qiáng)堿、堿金屬、水接觸。
1. Avoid contact with humid air. Avoid contact with strong oxidant, strong reducing agent, strong acid, strong alkali, alkali metal and water.
斜方晶系無色針狀或片狀結(jié)晶體。溶于水生成順丁烯二酸。溶于乙醇并生成酯。
Orthorhombic crystal is colorless acicular or flaky crystal. It is soluble in water to form maleic acid. It dissolves in ethanol and forms ester.
溶于乙醇、乙醚等多種有機(jī)溶劑,難溶于石油醚和四氯化碳。與熱水作用生成順丁烯二酸。易于烯類單體進(jìn)行共聚反應(yīng);也可進(jìn)行均聚。與二元醇反應(yīng)生成線型不飽和聚酯,與三氧化硫反應(yīng)生成磺化順丁烯二酸酐??扇?。有毒,濺及皮膚時(shí)要用大量清水沖洗。設(shè)備要密閉,操作人員要穿戴好防護(hù)用具。
It is soluble in ethanol, ether and other organic solvents, but insoluble in petroleum ether and carbon tetrachloride. It reacts with hot water to form maleic acid. It is easy to carry out copolymerization of olefin monomers and homopolymerization. Linear unsaturated polyester was formed by reaction with diols, and sulfonated maleic anhydride was formed by reaction with sulfur trioxide. Combustible. Toxic. Wash with plenty of water when splashing on skin. The production equipment should be sealed and the operators should wear protective equipment.
2.本品有毒。其毒性比順?biāo)岽?,能刺激皮膚及黏膜。當(dāng)人體接觸高溫液體時(shí),其刺激性更為嚴(yán)重,能造成皮膚灼燒傷,結(jié)膜、角膜紅腫,嚴(yán)重時(shí)導(dǎo)致視力減退甚失明。對(duì)大鼠經(jīng)服LD50為400mg/kg。小鼠經(jīng)口LD5060~465mg/kg。當(dāng)濺及皮膚時(shí)要用大量清水沖洗。設(shè)備要密閉,操作人員要穿戴好防護(hù)用具。
2. This product is poisonous. It is more toxic than CIS acid and can stimulate skin and mucous membrane. When the human body is exposed to high temperature liquid, its irritation is more serious, which can cause skin burn to injury, conjunctiva, corneal redness and swelling, and even lead to vision loss or blindness. The LD50 of rats was 400 mg / kg. Ld5060 ~ 465mg / kg by oral administration in mice. When splashing on the skin, rinse with plenty of water. The production equipment should be sealed and the operators should wear protective equipment.
3.存在于煙氣中。
3. Exist in flue gas.
4.強(qiáng)烈的刺激性,引起燒傷,吸入可引起肺水腫。
4. Strong irritation, cause burns, inhalation can cause pulmonary edema.

相關(guān)新聞
国产精品爱久久久久久久| 国产大片免费观看软件| 韩国演艺圈悲惨事件| 饥渴少妇a片aaa毛片小说| 欧美性猛交xxxx乱大交蜜桃| 小粉嫩精品a片在线视看| 人妻聚色窝窝人体www一区| 属兔的和什么属相最配、相克| 我和小表妺在车上的乱h| 银行娇妻1一14全文阅读| 狠狠综合久久av一区二区| 色婷婷av一区二区三区麻豆| 春药玩弄少妇高潮吼叫| 99久久综合狠狠综合久久| 97人人爽人人爽乱码av国产| 欧美熟妇另类久久久久久不卡| 邻居少妇太爽了a片在线观看动漫| 色狠狠色噜噜AV天堂一区| 无码熟妇人妻av在线网站| 51精产一二三产区区别| 女人爽到高潮30分钟一次正常吗| 胸部隐隐约约的疼怎么回事| 国产色婷亚洲99精品av在| 99蜜桃臀久久久欧美精品网站| 催眠睡熟迷奷怀孕系列小说| 少妇做爰特黄A片免费看9588| 久久国产欧美日韩精品| 一个人的在线观看www| 色欲av亚洲波多野结衣| 小小水蜜桃免费影院| 国内精品伊人久久久久AV影院| 99久久国产露脸国语对白| 亚洲中文字幕乱码熟女在线| 妈妈的朋友电影| 久久人午夜亚洲精品无码区| 一本一道av无码中文字幕﹣百度| 亚洲日韩精品无码av海量| 一区二区三区毛a片特级| 国产精品高潮呻吟久久av无码| 奶头被民工吸的又大又黑| 客厅丝袜麻麻被进进出出|