国产精品无码一二三视频_极品国产欧美日韩_国产在线91精品天天更新_亚洲精品中文字幕高清无码_亚洲亚洲色欲色欲天天ww_黑人把少妇曰出白浆_日韩专区 制服 大秀 国产_少妇综合高清精品_91中文字幕在线永久观看_伊人成长在线综合视频播放

產(chǎn)品
Return
2-Tert- butylhydroquinone

2-Tert- butylhydroquinone

  • Category:
  • Click:0
  • Time:2018-11-19 20:56:21
  • Customize
Details


【CAS number】   1948-33-0
 
【Chinese name】 叔丁基對(duì)苯二酚
 
【English name】  2-Tert- butylhydroquinone
 
【Alias】                MTBHQ
 
【Manufacturer】   USA; 
 
【Content】           99%, min        
         
【Chemical formula】               
 
【Nature】             White or reddish-brown crystalline powder, with a very special fragrance pale, almost insoluble in water (about 5%), soluble in ethanol, ethyl acetate, ethyl ether and other organic solvents.
 Boiling point 295℃, melting point 126.5~128.5℃. Has against putrescence to the majority fat, particularly vegetable oil. Case of iron, copper does not change color, but if there is can be converted to a pink base. Can effectively inhibit Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Bacillus and other bacteria producing shortness of breath, as well as black Aspergillus, Aspergillus versicolor, Aspergillus flavus and other microbial growth.
 
【Main purpose】     MTBHQ(single tertiary hydrogen wake) is a light brown solid, which is mainly used as polymerization inhibitors and industrial antioxidants .It’s more useful in many application than the hydrogen wake due to the high solubility at higher temperatures .What’s more, blocked hydroxyl also makes MTBHQ as an important organic intermediate .
 






Copyright &2018 Shanghai Qicheng Industrial Co.,Ltd. All rights reserved;
滬ICP備16040498號(hào)-3
Welcome to our message.
we will contact you as soon as possible.
Name
Your name
Tel
Telephone
Email:
Your email:
Address
Your address