午夜性刺激免费视频_三级黄.色_和寡妇房东在做爰_娇妻的暴露刺激经历

 

Tetraethylammonium bromide

Update time:2021/11/05 13:47:11  ???View:  
Tetraethylammonium bromide is an organic substance with the chemical formula (C2H5)4NBr, white crystals. Easy to absorb moisture. Easily soluble in water, ethanol, chloroform and acetone, slightly soluble in benzene, solubility in water: 2795 g/L (25°C). It is irritating.
Used as a reagent for polarographic analysis reagents and pesticide intermediates
Chinese name: 四乙基溴化銨
Foreign name Tetraethylammonium bromide
Don't  Name: Tetraethylammonium bromide, tetraethylammonium bromide
Chemical formula (C2H5)4NBr  Molecular weight 210.155  CAS accession number 71-91-0
Melting point: 285 ℃, water soluble and easy to dissolve, density 1.397 g/cm3. Appearance: white crystal
Character description

White crystals. Easy to absorb moisture. Easily soluble in water, ethanol, chloroform and acetone, slightly soluble in benzene, water solubility: 2795 g/L (25°C). The pH of the 10% aqueous solution is 6.5, and the pH does not change when heated to 95°C for 28 hours. It is irritating.
Purpose
For ion pair chromatography. Test gold, iridium, osmium, palladium, rhodium and ruthenium. Polarographic analysis. Used as a phase transfer catalyst in organic synthesis.
Storage and transportation are easy to absorb moisture, sealed and kept dry.
------分隔線----------------------------

Service Hotline:

You only need a phone call, we will serve you attentively

Consult now
Copyright © Shandong Zhengji Chemical Co., Ltd.  All Rights Reserved   Case Number :魯ICP備20007847號-4 chemBlink Premium Supplier