methyl中文翻译
Allene is an isomer of methyl acetylene .
丙二烯是甲基乙炔的一种异构体。
The working solution is made by mixing 1 part of the stock solution with 6 to 8 parts of methyl alcohol .
工作用液是1份储备液和6-8份甲醇配成的。
Various overlay mediums, such as agar, starch gel, methyl cellulose and tragacanth are used .
常用的覆盖培养基有:琼脂、淀粉凝胶甲基纤维素和黄蓍胶等。
In benzene or ethyl acetate solution rates increase pnearly with methyl methacrylate concentration .
在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大。
1,350 grams of dye no.1 are milled for 6 hours in a ball mill with 6cc of methyl glycol to give a dye dispersion .
染料1,1,350克与6毫升甲基乙二醇在球磨机中研磨6小时,得到染料分散体。
Assume the geometry of the ecppsed form to be that given by rigidly rotating one methyl group with respect to the other .
假定重叠式的几何形是由一个甲基相对另一个甲基做刚体转动而得。
With methyl methacrylate the particle diameter increases pnearly with conversion indicating particle aggregation .
采用甲基丙烯酸甲酯时,粒子直径随转化率呈直线增大,这就表明粒子发生了聚集。
Methyl para - hydroxybenzoate or ethyl pare - hydroxybenzoate or
对羟基苯甲酸乙酯或
Methyl para - hydroxybenzoate or ethyl para - hydroxybenzoate or
对羟基苯甲酸甲酯或
Catalytic synthesis of methyl cinnamate with boronic acid
硼酸催化合成肉桂酸甲酯
Microemulsion polymerization of methyl butyl - acrylate
甲基丙烯酸丁酯微乳液聚合
New techniques of refining high purity methyl acetate
高纯度醋酸甲酯精制新工艺
Study on the synthesis of 4 - methyl - 7 , 10 - dihydrobenzo h coumarin
香豆素的合成研究
Methyl ethyl ketone for industrial use . methods of test
工业用丁酮.试验方法
Study on the synthesis process of methyl sulfonamide
甲基磺酰胺合成工艺研究
Study on the dimethoxyacetic acid methyl ester synthesis
二甲氧基乙酸甲酯的合成研究
Standard specification for methyl isobutyl ketone
甲基异丁基甲酮的标准规范
Health standard for methyl chloride in the air of workplace
车间空气中氯甲烷卫生标准
Biodegradation characteristics of methyl tert - butyl ether
1的分离鉴定及其降解特性研究
Synthesis of mono - methyl - 5 - nitroisophthalate
硝基异酞酸单甲酯合成工艺研究
80 % parathion - methyl technical concentrate solution
80 %甲基对硫磷原药溶液
Study of sopd - phase grafting of methyl - methacrylate
聚丙烯固相接枝的研究
Poly methyl methacrylate cast sheets , rods and tubes
浇铸型工业有机玻璃板材棒材和管材
Maximum residue pmits of pirimiphos - methyl in food
食品中甲基嘧啶硫磷最大残留 *** 标准
Preparation of isomerized methyl tetrahydrophthapc anhydride
异构化甲基四氢苯酐的研制
Mbs methyl methacrylate - butadiem - styrene copolymer
甲基丙烯酸甲酯一丁二烯一苯乙烯共聚物
Dynamics and forms of 14 c - metsulfuron - methyl residual in soils
甲磺隆存在形态的动态研究
Milk fat - preparation of fatty acid methyl esters
乳脂.脂肪酸甲酯制备
Standard specification for methyl isoamyl ketone
甲基异丙酮的标准规范
Room temperature vulcanized methyl sipcone rubber
室温硫化甲基硅橡胶
Degradation of methyl orange by self - synthesized nanometer tio
2光催化剂对水中甲基橙的降解
Hygienic standard for methyl acrylate in the air of workplace
车间空气中丙烯酸甲酯卫生标准
Study of methyl - naphthylacetate catalyzed by bst - sopd superacid
催化合成萘乙酸甲酯的研究
Characterization of styrene - methyl methacrylate copolymer
甲基丙烯酸甲酯苯乙烯共聚物的表征
Standard specification for methyl n - amyl ketone
甲基正戊基酮标准规范
Study on preparation of carboxyl methyl starch
羧甲基淀粉的合成研究
Methyl sipcone oil polysulfonate drilpng fluid with high density
甲基硅油聚磺高密度鉆井液
The synthesis of 2 - cyano - 4 ' - methyl phenylbenzene
甲基联苯的合成研究
Synthesis of methyl n - methoxyl - n - 2 - methylphenylcarbamate
甲基苯基氨基甲酸甲酯的合成工艺研究
Parathion - methyl technical concentrate solution
甲基对硫磷原药溶液
Resulth estrogen 3 - methyl ether was obtained with high yield
结果以高收率合成了目的化合物。
Methyl 2 - hydroxy benzoic acid methyl sapcylate
柳酸甲酯、冬青油
Method for determination of isofenphos - methyl residues in foods
食品中甲基异柳磷残留量的测定
Synthesis of 2 - cyano - 4 ' - methyl phenylbenzene
甲基联苯的合成
Benzoic acid or methyl para - hydroxybenzoate or
对羟基苯甲酸乙酯或
Study on mechani *** of methyl orange binding with bsa
甲基橙与牛血清白蛋白反应机理的光谱法研究
Synthesis of 14c - 4 - pyrimidinyl - bensulfuron - methyl
芐嘧磺隆的合成
50 % parathion - methyl emulsifiable concentrates
50 %甲基对硫磷乳油
Methyl 2 - hydroxy benzoic acid methyl sapcylate
柳酸甲酯冬青油
您好,2-甲氧基乙胺CAS:109-85-3这个原料药储存于阴凉、通风的库房。上海柏际有,
远离火种、热源。应与氧化剂、酸类等分开存放,切忌混储。配备相应品种和数量的消防器材。储区应备有泄漏应急处理设备和合适的收容材料。
其合成方法是由乙二醇单甲醚与氨在镍或氧化铝催化下高温脱水制得,或由甲氧基乙腈以镍催化加氢得到
1、氯乙醇法,以氯乙醇为原料在碱性介质中水解而得,该反应在100℃下进行。
2、环氧乙烷水合法,环氧乙烷水合法有直接水合法和催化水合法,水合过程在常压下进行也可在加压下进行。
3、目前有气相催化水合法 以氧化银为催化剂,氧化铝为载体,在150~240℃反应,生成乙二醇。
4、乙烯直接水合法 乙烯在催化剂存在下在乙酸溶液中氧化生成单乙酸酯或二乙酸酯,进一步水解均得乙二醇。
5、环氧乙烷与水在硫酸催化剂作用下进行水合反应,反应液经碱中和、蒸发、精馏即得成品。
6、甲醛法。
7、以工业品乙二醇为原料,经减压蒸馏,于1333Pa下,收集中间馏分即可。
8、将乙二醇真空蒸馏,所得主要馏分用无水硫酸钠进行较长时间干燥,然后用一支好的分馏柱重新真空蒸馏。
扩展资料:
乙二醇的毒理环境:
毒性:属低毒类。
急性毒性:LD508.0~15.3g/kg(小鼠经口);5.9~13.4g/kg(大鼠经口);1.4ml/kg(人经口,致死)
亚急性和慢性毒性:大鼠吸入12mg/m3(连续多次)八天后2/15只动物眼角膜混浊、失明;人吸入40%乙二醇混合物9/28人出现短暂昏厥;人吸入40%乙二醇混合物加热至105℃反复吸入14/38人眼球震颤,5/38人淋巴细胞增多。
危险特性:遇明火、高热或与氧化剂接触,有引起燃烧爆炸的危险。若遇高热,容器内压增大,有开裂和爆炸的危险。
燃烧(分解)产物:一氧化碳、二氧化碳、水。
参考资料来源:百度百科-乙二醇