老公生日3q惊喜,506寝室的灯灭了以后第9部分,私人电影,6间房直播

<s id="7b2b8"></s>

  • <video id="7b2b8"></video>
    <samp id="7b2b8"><td id="7b2b8"></td></samp>
    <source id="7b2b8"><mark id="7b2b8"></mark></source>

    Recommended Products
    75-12-7
    123-39-7
    107-31-3
    124-40-3
    75-50-3
    647-45-2
    617-84-5
    74-89-5
    68-12-2
    Products

    Monomethylamine

    Molecular Formula CH3NH2
    Molecular Weight 31.06
    Properties Gas with ammonia-like odor under normal temperature.m.p.-93.5°C,b.p.-6.8°C. Specific gravity 0.66.Easily soluble in alcohol,ether,water,and etc .Easily burn.
    Uses Used to synthesize rubber sulphating accelerator, pharmaceutical, dyestuff, insecticide,surfactant, etc.
    Packing and storage Anhydrous Monomethylamine ,use tank truck or steel cylinder; Monomethylamine solution,use 200L metal pail. Tightly closed to store in cool and ventilated places,avoid sunlight and using units which easily cause static electricity,prevent from striking and vibrating.
    Specifications

    1.Monomethylamine Q/320412 XY205-2008

    Index name

    Top-grade

    First grade

    Qualified product

    Appearance

    colorless transparent liquid

    Monomethylamine% ≥

    99.8

    99.5

    99.0

    Dimethyl amine % ≤

    0.10

    0.30

    0.50

    Trimethyl amine % ≤

    0.10

    0.20

    0.30

    Ammonia% ≤

    0.05

    0.10

    0.20

    2. 40%Monomethylamine solution HG/T2972-1999

    Index name

    Top grade

    First grade

    Qualified product

    Appearance

    colorless transparent liquid

    Monomethylamine% ≥

    40.0

    40.0

    40.0

    Dimethyl amine % ≤

    0.20

    0.25

    0.45

    Trimethyl amine % ≤

    0.10

    0.15

    0.25

    Ammonia% ≤

    0.02

    0.08

    0.12

    Back

    Copyright(C)2017,Suqian Xinya Technology Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice