成人网站免费观看,99e久热只有精品8在线直播,亚洲综合无码明星蕉在线视频,亚洲精品一区二区三区中文字幕

SZSE:002741
Chemical Reagents
Ethyl acetoacetate?COA Report
  • CAS No.: 141-97-9
  • Molecular weight:130.14
  • Aliases:Acetoacetic ester; Ethyl 3-oxobutanoate; Ethyl beta-ketobutyrate; EAA
  • Molecular formula:CH3COCH2COOC2H5
  • EC No.:205-516-1
  • HS-No:2918300090
Information
Specification category:
Product No. Product name specifications
1.19215.010 Ethyl acetoacetate AR500mL
1.19215.020 Ethyl acetoacetate CP500mL
1.19215.030 Ethyl acetoacetate AR25L
Characteristic: Appearance and properties:Colorless or slightly yellow transparent liquid with fruit flavor.
Relative density(water=1)?: 1.03(20℃)
Relative vapor density(air=1): 4.5
Melting point(℃): -45
Boiling point(℃): 180.8
Concentration: Content:≥97%;Acidity (as acetic acid)≤0.15%
Saturated vapor pressure: 0.13(28.5℃)
Solubility: Soluble in water, soluble in most organic solvents, alcohols, ethers.
Technical indicators:
Item AR CP
Assay ≥99.5% ≥99.5%
Boiling point ℃ 180.0~181.5 180.0~181.5
Density(g/cm3 ): 1.020~1.029 1.020~1.029
Refractive index 1.4190~1.4196 1.4190~1.4210
Free acid(as CH3COOH) ≤0.1% ≤0.5%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
国产免国产免‘费| 丰满诱人的人妻3| 亚洲国产精品久久精品| 亚洲精品国产第一区二区尤物| 亚洲国产精品久久久久制服| 国产精品69人妻我爱绿帽子| 老牛精品亚洲成av人片| 与子敌伦刺激对白播放| 精品网站一区二区三区网站| 亚洲高请码在线精品av| 欧美一区二区三区| 大屁股肥熟女流白浆| 国产嫖妓风韵犹存对白| 日韩伦人妻无码| 无码熟妇人妻在线视频| 极品人妻少妇一区二区三区| 亚洲乱色熟女一区二区三区丝袜 | 国产亚洲tv在线观看| 日韩精品一区二区三区视频 | 欧洲国产精品无码专区影院| 丝袜无码专区人妻视频| 中文字幕精品av一区二区五区| 国模无码大尺度一区二区三区| 无套内射无矿码免费看黄| 国产精品a成v人在线播放| 曰韩内射六十七十老熟女影视| 亚洲老熟女与小伙bbwtv| 18禁成人黄网站免费观看久久| 欧美日韩亚洲中文字幕一区二区三区| 久久精品人妻一区二区三区 | 美女视频黄又黄又免费| 99在线精品视频在线观看| 国产成本人片无码免费| 人妻少妇heyzo无码专区| 久久激情五月丁香伊人| 性一交一乱一伦一色一情| 国产10000部拍拍拍免费视频| 伊人中文字幕无码专区| 歪歪爽蜜臀av久久精品人人| 亚洲女同一区二区| 九九99久久精品在免费线18|