国产99视频精品免费视频7,国产色综合久久无码有码

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

久久精品日本一区,免费黄色免费,国产在线精品自拍,久久一级精品,亚洲欧美综合7777色婷婷,青青在线免费观看,日韩a无v码在线播放免费