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

    N-Methylformamide(NMF)

    Molecular Formula HCONHCH3
    Molecular Weight 59.07
    Properties Colorless transparent liquid with ammonia odor.b.p.180° C-185°C, m.p.-40°C, refractive index 1.4319, Specific gravity 1.011(19°C). Can be mixed with benzene,soluble in water and alcohol,not in ether.
    Uses Important organic chemical material,intermediate and good organic solvent.It is used to synthesize high-efficient and low-poisonous Methylimidazole and Amitraz,etc.Also is a solvent of organic synthetic and purifying process .Widely applied in pharmaceutical,dyestuff,perfume and electrolysis and electroplating industry etc
    Packing and storage 200L plastic drum or 20‘Iso-tank or plastic coated metal pail etc.. Tightly closed to store,prevent from leaking,avoid rain,sunlight,far from fire and heat source,strictly forbid striking and rubbing.
    Specifications Q/320412 XY202-2008 

    Index name

    First grade

    Qualified product

    Appearance

    colorless transparent liquid without visible impurities

    N-Methylformamide(NMF) % ≥

    99.5

    99.0

    Moisture% ≤

    0.050

    0.10

    Chroma(Pt-Co#) ≤

    10

    15

    Free alkali % ≤

    0.0050

    0.010

    Methanol% ≤

    0.10

    -

    Di-methylformamide(DMF)% ≤

    0.40

    0.50

    Back

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