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在"英语"词典里acetal}的意思

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词典
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单词 ACETAL的词源

From German Azetal, from aceto- + alcohol.
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语源学是对单词起源和它们的结构和意义变化的研究
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英语中ACETAL的发音

acetal  [ˈæsɪˌtæl] play
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ACETAL的语法类别

noun
形容词
动词
副词
代词
介词
连词
限定词
感叹词

ACETAL在英语中的意思是什么?

点击查看«acetal»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

缩醛

Acetal

缩醛是具有以下连接性R2C2的官能团,其中两个R'基团都是有机碎片。 中心碳原子具有四个键,因此饱和并具有四面体几何形状。 两个R'O基团可以相互等效。 两个R基团可以彼此相同或不相同,并且一个或两个甚至可以是氢原子而不是有机片段。 缩醛由羰基化合物形成并可转化成羰基化合物。 术语缩酮有时用于鉴定与酮而不是醛相关的结构,而在历史上,术语缩醛用于醛类。 纤维素是缩醛的普遍存在的例子。 缩醛的形成发生在半缩醛的羟基被质子化并作为水而损失时。 然后产生的碳阳离子离子被一分子酒精迅速地攻击。 从连接的醇中损失质子得到缩醛。 醛到缩醛转化酮与缩酮的转化与半缩醛相比,缩醛是稳定的,但它们的形成是与酯类似的可逆平衡。 An acetal is a functional group with the following connectivity R2C2, where both R' groups are organic fragments. The central carbon atom has four bonds to it, and is therefore saturated and has tetrahedral geometry. The two R'O groups may be equivalent to each other or not. The two R groups can be equivalent to each other or not, and one or both can even be hydrogen atoms rather than organic fragments. Acetals are formed from and convertible to carbonyl compounds. The term ketal is sometimes used to identify structures associated with ketones rather than aldehydes, and historically, the term acetal was used specifically for the aldehyde cases. Cellulose is a ubiquitous example of an acetal. Formation of an acetal occurs when the hydroxyl group of a hemiacetal becomes protonated and is lost as water. The carbocation ion that is produced is then rapidly attacked by a molecule of alcohol. Loss of the proton from the attached alcohol gives the acetal. Aldehyde to acetal conversion Ketone to ketal conversion Acetals are stable compared to hemiacetals but their formation is a reversible equilibrium as with esters.

在英语 词典里acetal的定义

词典中缩醛的定义是1,1-二乙氧基乙烷; 用作溶剂和香料的无色挥发性液体。 分子式:CH3CH2。 缩醛的其它定义是含有基团-CHOR2的任何有机化合物,其中R1和R2是其它有机基团。

The definition of acetal in the dictionary is 1,1-diethoxyethane; a colourless volatile liquid used as a solvent and in perfumes. Formula: CH3CH2. Other definition of acetal is any organic compound containing the group -CHOR2, where R1 and R2 are other organic groups.

点击查看«acetal»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

ACETAL押韵的英语 单词


Amytal
ˈæmɪˌtæl
barbital
ˈbɑːbɪˌtæl
hexobarbital
ˌhɛksəˈbɑːbɪˌtæl
KwaZulu-Natal
kwɑːˌzuːluːnəˈtæl
secobarbital
ˌsekəʊˈbɑːbɪˌtæl
thiopental
ˌθaɪəʊˈpɛntæl

ACETAL一样开头的英语单词

acetabula
acetabulum
acetaldehyde
acetamid
acetamide
acetaminophen
acetanilid
acetanilide
acetate
acetate rayon
acetated
acetazolamide
acetic
acetic acid
acetic anhydride
acetification
acetified
acetifier
acetifies
acetify

ACETAL一样开头的英语单词

base metal
death metal
fetal
gunmetal
heavy metal
heavy-metal
hot metal
metal
musculoskeletal
parietal
petal
precious metal
scrap metal
sheet metal
skeletal
societal
thrash metal
transition metal
varietal
vegetal

英语近义词词典里acetal的近义词和反义词

近义词

«acetal»的25种语言翻译

翻译者
online translator

ACETAL的翻译

通过我们的英语多语言翻译器,找到acetal25种语言翻译
该章节所呈现的将acetal由 英语向其他语言的翻译是通过自动统计翻译获得的;在英语中基本的翻译单位是单词«acetal»。

翻译者英语 - 中文

缩醛
1,325 数百万发言者

翻译者英语 - 西班牙语

acetal
570 数百万发言者

英语

acetal
510 数百万发言者

翻译者英语 - 印地语

acetal
380 数百万发言者
ar

翻译者英语 - 阿拉伯语

أسيتال
280 数百万发言者

翻译者英语 - 俄语

ацетальный
278 数百万发言者

翻译者英语 - 葡萄牙语

acetal
270 数百万发言者

翻译者英语 - 孟加拉语

acetal
260 数百万发言者

翻译者英语 - 法语

acétal
220 数百万发言者

翻译者英语 - 马来语

Acetal
190 数百万发言者

翻译者英语 - 德语

Acetal
180 数百万发言者

翻译者英语 - 日语

アセタール
130 数百万发言者

翻译者英语 - 韩语

아세탈
85 数百万发言者

翻译者英语 - 印尼爪哇语

Acetal
85 数百万发言者
vi

翻译者英语 - 越南语

acetal
80 数百万发言者

翻译者英语 - 泰米尔语

அசற்றல்
75 数百万发言者

翻译者英语 - 马拉地语

Acetal
75 数百万发言者

翻译者英语 - 土耳其语

asetal
70 数百万发言者

翻译者英语 - 意大利语

acetale
65 数百万发言者

翻译者英语 - 波兰语

acetalu
50 数百万发言者

翻译者英语 - 乌克兰语

ацетальний
40 数百万发言者

翻译者英语 - 罗马尼亚语

acetal
30 数百万发言者
el

翻译者英语 - 希腊语

ακετάλη
15 数百万发言者
af

翻译者英语 - 布尔语(南非荷兰语)

astaal
14 数百万发言者
sv

翻译者英语 - 瑞典语

acetal
10 数百万发言者
no

翻译者英语 - 挪威语

acetal
5 数百万发言者

acetal的使用趋势

趋势

词语 «ACETAL»的使用趋势

0
100%
频率
经常使用
65
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此处所显示的地图给出了词语«acetal»在不同国家的使用频率。
acetal的主要搜索趋势和常见用法
用户为查找我们的英语在线词典以及单词«acetal»的最常用表达而进行的主要搜索的列表。

词语«ACETAL» 随时间而变化的使用频率

该图表展现了单词«acetal»在过去500年中的用法频率的每年演化其实施是基于分析词语«acetal»从1500年到现在在 英语数字出版物中出现的频率。

acetal的英语文献、引用和新闻中的使用范例

示例

«ACETAL»相关的英语书籍

在以下的参考文献中发现acetal的用法。与acetal相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Handbook of Plastics Joining: A Practical Guide
Adhesive performance: Prism 401 instant adhesive, when used in conjunction with Prism Primer 770, achieved the highest bond strengths on all of the acetal formulations that were evaluated. Hysol E-214HP epoxy adhesive, Hysol 3631 hot ...
Michael J. Troughton, 2008
2
Protecting Groups
(ii) Formation Before elaborating some of the specific methods for cyclic acetal formation, we might first consider a few general principles which apply to acyclic as well as cyclic acetal formation: 1. Acetals are more easily prepared from ...
Philip J. Kocienski, 2005
3
Aroma of Beer, Wine and Distilled Alcoholic Beverages
1970a, b) Acetal Amounts Forniuldehyde diethyl acetal 0.8 Acetaldehyde ethyl methyl acetal 0.3 Acetaldehyde ethyl propyl acetal 1.2 Acetaldehyde butyl ethyl acetal 0.5 Acetaldehyde ethyl isobutyl acetal 1.5 Acetaldehyde ethyl pentyl acetal  ...
L. Nykänen, H. Suomalainen, 1983
4
Dictionary of Flavors
Chart 3 Continued Compound Empirical FEMA CFR NAS# CAS# Formula GRAS # 2-hexyl-4,5-dimethyl-1,3-dioxolane C11H2lO2 4048 — — 6454-22-4 4- heptenal diethyl acetal C11H2202 3349 — — 18492-65-4 octanal propyleneglycol ...
Dolf De Rovira, 2008
5
Concise Polymeric Materials Encyclopedia
ACETAL RESINS 7. Flowers, R. G.; Miller, H. F. 7. Chem. Soc. 1947, 69, 1388. 8. Ueberreiter, K.; Knill, W. Z Phys. Chem. (Frankfort) 1957, 12, 303. 9. Saotome, K.; Imoto, M. Kobunshi Kagaku 1958, 75, 368. 10. Noma, K.; Niwa, M.; Norisada, ...
Joseph C. Salamone, 1998
6
CRC Handbook of Data on Organic Compounds
... 15350 Acepromazin: 13369 Acepromazine: 13369 Acesal: 6374 Acetacin: 13369 Acetagesic: 292 Acetal: 12853 Acetaldazine: 48 Acetal deny dazine: 48 Acetaldehyde: 37 Acetaldehyde, amino-, diethyl acetal: 12626 Acetaldehyde, amino-, ...
David R. Lide, G.W.A. Milne, 1993
7
Compendium of Food Additive Specifications
Specifications" Conclusions based on current estimated intake Structural Class I ( +/-) 1-Acetoxy-l-ethoxyethane 1726 N No safety concern Acetaldehyde hexyl isoamyl acetal 1727 N No safety concern 1 , 1 -Dimethoxy-trans-2-hexene 1728 N ...
Joint FAO/WHO Expert Committee on Food Additives. Meeting, 2007
8
Volatile Compounds in Foods and Beverages
D. Acetals The peppery odor of 2-propenal in whisky was reported to disappear quickly, because it reacts with alcohol in the distillate to form acetal; the final reaction product is 1,1,3-triethoxypropane [36]. When investigating impurities of a  ...
Henk Maarse, 1991
9
Polymeric Materials Encyclopedia, Twelve Volume Set
ACETAL RESINS Alex Forschirm and Francis B. Me Andrew Hoechst Celanese Corporation With the introduction in 1960 of the first acetal polymer, DuPont's ( Wilmington, DE) DelrinTM acetal homopolymer, acetal resins have grown in ...
Joseph C. Salamone, 1996
10
Handbook of Reagents for Organic Synthesis, Chiral Reagents ...
(MW 196.32) (MW 374.62) ([(2S)-(2a,3aa,4a,7a,7aa)]-isomer) [81925-09-9] ( enantiomer) [108031-75-0] (25) acetal dimer (1) [87248-50-8] (enantiomeric acetal dimer) [108031-79-4] (useful for resolving racemic alcohols via formation of ...
Leo A. Paquette, 1999

包含词语«ACETAL»的新条目

找出国内和国际出版社所讨论的内容,以及词语acetal在以下新条目的上下文中是如何使用的。
1
Tooling at NPE: Valve Gates & Multi-Tips Top the News In Hot …
... it boasts less than ± 5% thermal variation, important for running sensitive resins such as PC, COP, COC, PBT, and acetal. At the show, the Summit Series also ... «Plastics Technology, 七月 15»
2
EK Water Blocks has teased its AMD Radeon R9 Fury X Water Block
These materials will sit alongside clear acrylic and acetal covers. Featuring a single-channel for the GPU and VRM, there's an included ... «TweakTown, 六月 15»
3
Radeon R9 Fury X Water Block Readied by EK
... will likely be available in two material options that include exposed copper and nickel-plated copper, as well as clear acrylic and acetal tops. «Overclockers Club, 六月 15»
4
World Adhesives Industry
... Urea Formaldehyde Adhesives, Polyvinyl Acetal Adhesives, Polyvinyl Acetate Adhesives, Neoprene Adhesives, Thermoplastic Rubber ... «MarketWatch, 六月 15»
5
Celanese Presents Weight and Cost Reduction Solutions at 17th …
Another highlight of the Celanese exhibit is a door trim featuring Hostaform® POM (acetal copolymer) appearance materials for automotive ... «MarketWatch, 六月 15»
6
Egyptian Petrochemicals to finalise $2bn propylene project by October
... 70,000t of urea formaldehyde, polyvinyl acetal, phenol-formaldehyde and melamine-formaldehyde. It will utilise 30,000t of methanol a year. «Chemicals Technology, 六月 15»
7
Amyl Cinnamic Aldehyde (ACA) Market Trends & Forecast Up to 2022
The acetal derivatives of amyl cinnamic aldehyde have shown remarkable fragrance characteristics. The lower aliphatic alcohols produce ... «Digital Journal, 六月 15»
8
MATERIALS: The Problems with Single-Point Data
These are plots of elastic modulus as a function of temperature for two similar grades of acetal copolymer. While the elastic modulus and the tensile modulus are ... «Plastics Technology, 五月 15»
9
Thermoplastic Injection Molding Design For Medical Prototyping …
Acetal has good lubricity and resistance to hydrocarbons and organic solvents, so it works well for products with fans or blower blades. Acrylic ... «Med Device Online, 五月 15»
10
EK Water Blocks releases EVGA GTX 980 Kingpin Edition water block
The base of the EK-FC980 GTX Classy KPE is made of nickel-plated electrolytic copper while the top is made of either POM Acetal or acrylic ... «Fudzilla, 四月 15»

参考文献
« EDUCALINGO. Acetal [在线]. 可用 <https://educalingo.com/zh/dic-en/acetal>. 五月 2024 ».
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