中文字幕人妻高清乱码,精品人妻久久av区,中国老熟女精品久久国产精,AV在线不卡的观看,久久精品女性视频,欧美日韩国产免费一区二区三区,亚洲精品五月综合网,午夜在线无码AV,久久久国产综合视频,a毛片免费看全部播放,亚洲的天堂在线中文字幕,va亚洲中文字幕无码,亚洲一级毛片免费手机观看,AV无码天堂AV,亚洲无码制服丝袜,国产性色福利在线视频,九九热在线视频观看这里只有精品,免费大片av手机看片在线不卡

Trimethyl amine

Molecular Formula

(CH₃)₃N

Molecular Weight

59.11

Properties

Gas with ammonia-like odor under normal temperature.m.p.-117.1°C,b.p.3°C. Specific gravity 0.66(-5°C).Easily soluble in alcohol, ether, water,and etc.Easily burn.

Uses

Used to produce pesticides,synthesize surface-active agent,also as disinfectant.

Packing and storage

Anhydrous Trimethyl amine,use tank truck or steel cylinder; Trimethyl 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. Trimethyl amine Q/320412 XY207-2008

Index name	Top-grade	First grade	Qualified product
Appearance	colorless transparent liquid
Trimethyl amine % ≥	99.5	99.2	99.0
Monomethylamine% ≤	0.10	0.30	0.50
Dimethyl amine % ≤	0.10	0.20	0.30
Ammonia% ≤	0.05	0.10	0.20

2. 30% Trimethyl amine solution HG/T2974-1999

Index name	Top grade	First grade	Qualified product
Appearance	colorless transparent liquid
Monomethylamine% ≤	0.10	0.15	0.25
Dimethyl amine % ≤	0.10	0.15	0.20
Trimethyl amine % ≥	30.0	30.0	30.0
Ammonia% ≤	0.02	0.08	0.12

Back

久久国产免费2020伊人_一区二区三区国产免费_在线精品视频一区二区三四_亚洲不良视频一级二级