高清一级做a爱免费视_亚洲第一狼人久久_亚洲欧美综合在线日韩_国产精品护士在线观看_国产精品AV一区

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
新平| 泸州市| 婺源县| 简阳市| 临洮县| 许昌市| 黑山县| 岱山县| 开封市| 沙湾县| 东乌珠穆沁旗| 潮州市| 洛扎县| 大足县| 肥东县| 琼海市| 遂宁市| 丹棱县| 南部县| 鸡东县| 呼伦贝尔市| 闽侯县| 寻乌县| 北辰区| 岢岚县| 保靖县| 杭锦旗| 海安县| 眉山市| 安溪县| 米易县| 青龙| 巫溪县| 新昌县| 锡林浩特市| 博爱县| 乐清市| 沛县| 上思县| 永嘉县| 犍为县|