五月天久久综合色午夜影院，久久人人妻在人人做，欧美日韩妖精视频一区二区三区，亚洲真实片中文字幕，久久免费无码专区外国精品，欧美丰满少妇xxxx，国产人年成免费网站视频，国产亚洲精品无码视频

Dimethyl amine

Molecular Formula

(CH₃)₂NH

Molecular Weight

45.08

Properties

Gas with ammonia-like odor under normal temperature.m.p.-92.2°C,b.p.-6.9°C, Specific gravity 0.68.Easily soluble in alcohol,ether,water,and etc. Easily burn.

Uses

Used to produce DMF,water treatment agent,surfactant,pesticides,dimethylaminoethanol, etc.

Packing and storage

Anhydrous Dimethyl amine,use tank truck or steel cylinder; Dimethyl amine 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.Dimethyl amine Q/320412 XY206-2008

Index name	Top-grade	First grade	Qualified product
Appearance	colorless transparent liquid
Dimethyl amine % ≥	99.8	99.5	99.0
Monomethylamine% ≤	0.10	0.20	0.50
Trimethyl amine % ≤	0.05	0.20	0.40
Ammonia% ≤	0.03	0.05	0.10

2. 40%Dimethyl amine solution HG/T2973-1999

Index name	Top grade	First grade	Qualified product
Appearance	colorless transparent liquid
Monomethylamine% ≤	0.10	0.15	0.25
Dimethyl amine % ≥	40.0	40.0	40.0
Trimethyl amine % ≤	0.10	0.15	0.25
Ammonia% ≤	0.01	0.08	0.12

Back