无码国模国产在线观看丨国产洗浴女技师全套av丨亚洲第七页丨丰满岳乱妇在线观看中字无码丨天天操操丨日本在线资源丨女人与公人强伦姧人妻完电影丨色图在线观看丨日韩在线精品强乱中文字幕丨国产污视频网站丨蜜桃久久久精品国产丨亚洲国产成人超a在线播放丨aⅴ免费视频在线观看丨狠狠色丁香久久综合婷婷丨美女视频黄免费看丨成人一级影视丨岛国av大片丨国产精品久久久影视青草丨国产黑色丝袜视频在线观看网红丨hd日本xxxx丨少妇人妻av无码专区丨九九精品九九丨成人午夜av丨久久99精品久久久久久按摩秒播丨国产精品国一国二在线

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

Di-methylformamide(DMF)

Molecular Formula HCON(CH3)2
Molecular Weight 73.09
Properties colorless transparent inflammable liquid with slight ammonia odor .m.p.-61°C, b.p.152.8°C, flash point 57.7°C, refractive index 1.427-1.429,density (20°C) 0.9487g/ml,miscible with water,ether,ester,ketone,chlorinated hydrocarbon and benzene hydrocarbon,hygroscopic.
Uses DMF is an important organic material and good solvent.It is used as solvent for man-made leather and chemical fiber,also used as material for synthesis of insecticide of high-effectiveness and low-toxicity,as gas absorbent to separate and purify the gas in petrochemical industry,as material of sulfadiazine,cortisone and Vitamin B6 in pharmaceutical industry,and also as fixing agent in vapor-phase analysis.
Packing and storage 200L plastic drums or plastic coated metal pail. Tightly closed to store,prevent from leaking,avoid rain,sunlight,strictly forbid striking and rubbing,far from fire and heat source,stored in cool and ventilating places.
Specifications Q/320412 XY201-2004 

Index name

First grade

Qualified product

Appearance

colorless transparent liquid without visible impurities

Di-methylformamide(DMF)

99.8

99.5

Methanol mg/kg ≤

50

100

Chroma, (Pt-Co)# : ≤

5

10

Refractive index n25D

1.427-1.429

 

Moisture, % ≤

0.05

0.10

Formic acid mg/kg ≤

30

50

Dimethyl amine mg/kg ≤

15

30

PH (20% solution)

6.5-8.0

6.5-9.0

Fe mg/kg ≤

0.05

-

Back

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