小泽玛莉亚一区二区视频在线丨亚洲精品无码久久久久久丨欧洲精品久久久av无码电影丨少妇被躁爽到高潮无码文丨国产日产欧产美韩系列影片

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-ethylformamide(NEF)

Molecular Formula

C3H7NO

Molecular Weight

73.09

Properties

Light yellow or colorless transparent liquid.m.p.-78°C,b.p.202-204°C,flash point 113°C,proportion 0.95 (20°C)。

Uses

N-ethyl formamide is an important organic chemical raw material and intermediate ,is a good organic solvent. Used as a solvent, drug synthesis reaction solvent, solvent synthesis, fiber spinning, photographic chemicals, the field of painting and electronic chemicals. Used as reaction solvent and refining  solvent in organic synthesis. It is also widely used in pharmaceutical, dyestuff, spice and electrolysis, electroplating industry.

Packing and storage

200L plastic drum or plastic coated metal pail. Tightly closed to store,prevent from leaking,avoid rain,sunlight,far from fire and heat source,strictly forbid striking and rubbing.

Specifications

GXY005-2014

Index name

Top-grade

Appearance

Light yellow or colorless transparent liquid, no visible impurities

N-ethylformamide, % ≥

99.7

Methanol, % ≤

0.10

Chroma, (Pt-Co)# : ≤

20

Moisture, % ≤

Monoethylamine, % ≤

N,N-diethylformamide, % ≤

0.05

0.05

0.10

Back

Copyright(C)2017,Suqian Xinya Technology Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice
主站蜘蛛池模板: 亚洲欧美精品aaaaaa片| 成人精品v视频在线| 动漫精品中文无码卡通动漫| mm1313亚洲国产精品无码试看 | 国产日韩精品欧美2020区| 国产精品午夜爆乳美女视频| 无码色av一二区在线播放| 无码高潮爽到爆的喷水视频| 亚洲精品久久久久久无码色欲四季| 国产精品视频一区二区亚瑟| 麻花豆传媒剧国产免费mv观看| 亚洲国产精品成人久久蜜臀| 精品人妻码一区二区三区| 欧美精品亚洲精品日韩专区va| 先锋影音av资源站av| 国产狂喷潮在线观看中文| 亚洲精品久久无码av片| 国产高清在线精品一本大道| 无码被窝影院午夜看片爽爽jk| 中文字幕亚洲欧美在线不卡 | 极品尤物被啪到呻吟喷水| 超碰国产天天做天天爽| 亚洲国产欧美在线成人aaaa| 国产成人av一区二区三区| 久久精品人妻一区二区三区| 国产成人精品一区二区三区免费看| 亚洲欧洲日本综合aⅴ在线| 蜜桃久久精品成人无码av| 国产日韩精品欧美一区喷水| 4hu四虎永久在线影院| 精品国产品香蕉在线| 成人性生交大片免费看vr| 9999国产精品欧美久久久久久| 欧美日韩一本的免费高清视频| 在线成人精品国产区免费| 久久国产avjust麻豆| 窝窝午夜看片成人精品| 国产农村妇女高潮大叫| 国产男女爽爽爽免费视频| 精品麻豆国产色欲色欲色欲www| 日本韩国亚洲欧美在线|