午夜成人免费无码A片,一区二区视频,欧美真人性野外做爰,99久久亚洲精品无码毛片,丰满少妇作爱视频免费观看

Ningbo Jinhai ChenguangChemical Corporation.
Service Tel:+86-574-8765 3737
  1. Home >>> PRODUCTS CENTER >>> C5?Liquid Chemical Products

Isoamylene


    Isoamylene

    Molecular  Formula:

    CH2=C(CH3)CH2CH3 CH3C(CH3)=CHCH3


    Specification:

    Number

    Item

    Index

    1

    Appearance

    Transparent  and no mechanical admixture

    2

    Colour (Pt-Co) No

    ≤30

    3

    Isoamylene

    ≥99.0

    4

    2-methyl-2-butylene

    ≥88.0

    5

    Methyl alcohol

    ≤0.050

    6

    Dimethyl ether

    ≤0.050

    7

    Water

    ≤0.03


    Properties:

    1. Appearance:Colourless or light yellow inflammable;

    2. specificgravity: 0.7, melting point: -137℃;

    3. boilingpoint: 31℃, flash point: –20℃;

    4. Insoluble inwater, soluble in ethanol, ether and other organic solvents;

    5. a lowtoxicity category. There are anesthesia and the stimulation of the skin, mucousmembranes


    Usages:

    Pinacolone,flavour intensifier, protectingagent for crops, antioxidant, ultraviolet absorber and other finechemicals such as perfume, pharmaceutical and pesticides. 2-4 series of TERT amyl phenol antioxidant, ultraviolet absorbent,photosensitive material, concrete dispersing agent, flow agent.


        
Brand
主站蜘蛛池模板: 强奸乱伦影音先锋| 人妻夜夜爽天天爽三区丁香花| 国产av偷闻女邻居内裤被发现| 奇米777四色影视在线看| 18禁免费无码无遮挡不卡网站| 亚洲av无码专区首页| 大地资源网在线观看免费官网 | 又爽又黄又无遮挡的激情视频| 国产精品看高国产精品不卡| 熟妇人妻av中文字幕老熟妇| 亚洲精品92内射| 久久97久久97精品免视看秋霞| 无码av中文一区二区三区桃花岛| 亚洲va韩国va欧美va| avtt天堂网久久精品| 国产精品国产三级国产专播| 美女末成年视频黄是免费网址| 亚洲视频一区| 三级做a全过程在线观看| 激情内射日本一区二区三区| 国产在线精品一区二区中文| 亚洲中文无码av在线| 中文字幕+乱码+中文乱码www | а√天堂8资源中文在线| 成人性生交大免费看| 洗澡被公强奷30分钟视频| 中文字幕人妻伦伦| 国产在线 | 中文| xx性欧美肥妇精品久久久久久| 亚洲av毛片一区二区三区| 久久久久高潮毛片免费全部播放 | 少妇一边呻吟一边说使劲视频| √最新版天堂资源网在线| 极品新婚夜少妇真紧| 免费无码国产v片在线观看| 亚洲av无码一区东京热蜜芽 | 色国产精品一区在线观看| 男女18禁啪啪无遮挡激烈网站| 性高朝久久久久久久| 又硬又粗进去好爽免费| 日本边添边摸边做边爱喷水|