国产深夜A级毛片,大香蕉99在线视频,sexingaiav,五月久熟女,A片一道本

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
A片在线观看网站| 黄色大片一区二区| 日韩a片地址| av无码黄色| 2002超碰| 黄色视频无码| 淫乱无码| 日本A成人三级片网站| 九色熟女五月天电影网| 亚洲日韩AV无码| sese日韩| 特级黄色a级真人毛片| 亚洲成人av网址| 2000xxxx影院| 青青草视频美女国产| 91人人在线观看| 青青草国产精品毛片| 色情av第一页| 超碰黄色| 亚洲婷婷九月| 亚洲一级A片电影| 黄色无码婷婷五月天| 亚洲欧洲国产网址| 亚洲av二区| 中国一级黄色大片| 在线观看免费高清A片| 五月天操逼网| 免费成人色情网站| 在线免费看黄Av| 日韩av手机在线| 久久大香蕉网| 日韩有码一级片在线| 91在线免费网站| 91黄色操逼视频| 51色国产在线| 亚洲无码二本| 久久无码视频播放| 精品国产一区jobs| 韩国AV三级| 成人3级黄色视频| 青青草精品视频|