请输入您要查询的英文单词:

 

单词 hexamethylenetetramine
释义

hexamethylenetetramine


hex·a·meth·yl·ene·tet·ra·mine

H0181500 (hĕk′sə-mĕth′ə-lēn-tĕt′rə-mēn′)n. See methenamine.

hexamethylenetetramine

(ˌhɛksəˌmɛθɪliːnˈtɛtrəˌmiːn) n (Elements & Compounds) a colourless crystalline organic compound used as a urinary antiseptic. Formula: C6H12N4. Also called: hexamine or methenamine

hex•a•meth•yl•ene•tet•ra•mine

(ˌhɛk səˈmɛθ ə linˈtɛ trəˌmin)

n. a white, crystalline, water-soluble powder, C6H12N4, used esp. as a vulcanization accelerator and as a diuretic and urinary antiseptic. Also called hex′a•mine` (-ˌmin) [1885–90; hexa- + methylene + tetr (a)- + amine]

Hexamethylenetetramine


Hexamethylenetetramine

 

hexamine, or urotropine, colorless crystals with a sweet taste that carbonize at 280° C and sublime in vacuum above 230° C. Hexamethylenetetramine is highly soluble in water and carbon disulfide, moderately in alcohol and chloroform, and slightly in ether and benzene.

Hexamethylenetetramine is prepared by condensing ammonia with formaldehyde: 4NH3 + 6CH2O⇌(CH2)6N4 + 6H2O.

This reaction is reversible and under certain conditions the equilibrium may be shifted toward the left, which makes it possible to use hexamethylenetetramine as a convenient formaldehyde source (for example, in the production of ureaformaldehyde resins). Hexamethylenetetramine is also used in the production of the powerful explosive hexogen, in analytical chemistry (for example, in the preparation of buffer solutions), and as a smokeless solid fuel (so-called solid alcohol). Hexamethylenetetramine is a medicinal preparation of the antiseptic variety. Its antimicrobial action is due to formaldehyde formation from the decomposition of hexamethylenetetramine in acid media. Hexamethylenetetramine is used internally in powders, tablets, and solutions, as well as intravenously in infectious diseases, particularly for urinary tract infections. It was first synthesized by A. M. Butlerov in 1860.

hexamethylenetetramine


hexamethylenetetramine

(hĕk′sə-mĕth′ə-lēn-tĕt′rə-mēn′)n. See methenamine.

methenamine

A disinfectant once used as an oral urinary tract antiseptic; in acid urine, methenamine decomposes, generating formaldehyde, which is toxic to urinary tract bacteria.
See HMTA
See HMTA
ThesaurusSeemethenamine
随便看

 

英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/3/1 2:12:55