国产最新AV在线播放不卡,91人妻无码成人精品一区91,国产熟女av一区二区三区四季,久久久久久AV无码成人,久久亚洲一级av一片

中文字幕亚洲第一页在线,亚洲国产日韩欧美高清片a,亚洲一区二区三区av在线免费,日本不卡在线一区二区,亚洲av不卡电影在线网址最新 ,少妇被爽到自拍高潮在线观看,av无码一区二区三,人妻一区二区三区蜜桃

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

Monomethylamine

Molecular Formula

CH₃NH₂

Molecular Weight

31.06

Properties

Gas with ammonia-like odor under normal temperature.m.p.-93.5°C,b.p.-6.8°C. Specific gravity 0.66.Easily soluble in alcohol,ether,water,and etc .Easily burn.

Uses

Used to synthesize rubber sulphating accelerator, pharmaceutical, dyestuff, insecticide,surfactant, etc.

Packing and storage

Anhydrous Monomethylamine ,use tank truck or steel cylinder; Monomethylamine 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.Monomethylamine Q/320412 XY205-2008

Index name	Top-grade	First grade	Qualified product
Appearance	colorless transparent liquid
Monomethylamine% ≥	99.8	99.5	99.0
Dimethyl amine % ≤	0.10	0.30	0.50
Trimethyl amine % ≤	0.10	0.20	0.30
Ammonia% ≤	0.05	0.10	0.20

2. 40%Monomethylamine solution HG/T2972-1999

Index name	Top grade	First grade	Qualified product
Appearance	colorless transparent liquid
Monomethylamine% ≥	40.0	40.0	40.0
Dimethyl amine % ≤	0.20	0.25	0.45
Trimethyl amine % ≤	0.10	0.15	0.25
Ammonia% ≤	0.02	0.08	0.12

Back