97人妻无码专区,国产午夜精华无码网站,亚洲欧美日韩中文久久

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

97在线精品I www免费黄色I 久久6精品I 日黄网站I 在线观看精品一区I 四川bbb搡bbb爽爽视频I 国产理论片在线观看