英文字典中文字典51ZiDian.com

中文字典辞典英文字典 a b c d e f g h i j k l m n o p q r s t u v w x y z

heptane

庚烷

WordNet (r) 3.0 (2006) (WordNet)

heptane
n 1: a colorless volatile highly flammable liquid obtained from
petroleum and used as an anesthetic or a solvent or in
determining octane ratings

The Collaborative International Dictionary of English v.0.48 (gcide)

Heptane \Hep"tane\, n. [Gr. "epta` seven.] (Chem.)
Any one of several isometric hydrocarbons, {C7H16}, of the
paraffin series (nine are possible, four are known); -- so
called because the molecule has seven carbon atoms.
Specifically, a colorless liquid, found as a constituent of
petroleum, in the tar oil of cannel coal, etc.
[1913 Webster]

请选择你想看的字典辞典：

单词	字典	翻译
heptane	查看　heptane　在百度字典中的解释	百度英翻中〔查看〕
heptane	查看　heptane　在Google字典中的解释	Google英翻中〔查看〕
heptane	查看　heptane　在Yahoo字典中的解释	Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!

中文字典英文字典工具:

选择颜色:

<style type="text/css">#word104_1 br {display:none;}</style>
<form id="word104_1" method="post" action="http://jp.goldgoldprice.com/index.php" target="_blank">
<div style="width: 140px;border:1px solid #000;background-color:#ffffff;padding: 0px 0px;margin: 0px 0px;align:center;text-align:center;overflow:hidden;"><div id="xcolor1_1" style="font-size:12px;color:#183a00;line-height:16px;font-family: arial; font-weight:bold;background:#94abf0;padding: 3px 1px;text-align:center;"><a href="http://jp.goldgoldprice.com/" alt="英文字典中文字典" title="英文字典中文字典" id="word_name104_1" style="color:#000000;font-size:14px;text-decoration:none;line-height:16px;font-family: arial;" >英文字典中文字典</a></div><table width=100% style='align:center;text-align:left;font-size:12px;background-color:#ffffff;color:#333333;'>
<tr><td style="text-align:center;border:0"><input type=hidden name="word104_hi" value="1">输入中英文单字</td></tr><tr><td style="text-align:center;border:0"><input type="text" name="word104_input" value="" size=10 style="background-color:#ffffff;color:#000;text-decoration:none;font-family: arial;rial;border:1px solid #999;padding:1px!important;"></td></tr><tr style='line-height: 26px;'><td style="text-align:center;border:0"><input type=submit style="background-color:#ccc;color:#000;border:0 none;cursor:pointer;" value="查询字典"></td></tr></table></div>
</form>

英文字典中文字典相关资料:

Heptane - Wikipedia
Heptane or n-heptane is the straight-chain alkane with the chemical formula H 3 C(CH 2) 5 CH 3 or C 7 H 16 When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale (the 100 point is 100% iso-octane)
Heptane | C7H16 | CID 8900 - PubChem
In vivo percutaneous absorption results suggest a greater absorption of hexadecane (0 43%) than xylene (0 17%) or heptane (0 14%) of the applied dose after 30 min exposure Transepidermal water loss (TEWL) provides a robust method for assessing damage to the stratum corneum Heptane showed greater increase in TEWL than the other two chemicals
Heptane | Formula, Properties Application
Heptane, a clear, colorless liquid at room temperature, is a volatile organic compound that belongs to the alkane family With the chemical formula C 7 H 16 , it is a straight-chain alkane, meaning it has a chain of seven carbon atoms connected by single bonds
Heptane: Physicochemical Properties, Uses and Health hazards
Heptane is a chemical derived from petroleum and a member of the alkane series It is classified as a “straight-chain” alkane As a chemical, it is a colorless liquid hydrocarbon
Heptane | Fisher Scientific
What Is Heptane? Heptane is a straight-chain alkane and one of the main components of gasoline In liquid form, heptane and its many isomers are often used as non-polar solvents
HEPTANE | Occupational Safety and Health Administration
ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Heptane, all isomers See annual publication for most recent information NIOSH: Criteria for a Recommended Standard - Occupational Exposure to Alkanes (C5-C8) March 1977 NIOSH: Occupational Health Guideline for Heptane September 1978
Heptane - NIST Chemistry WebBook
Thermodynamic properties of standard n-heptane from 155 to 270K and of 2,2-dichloropropane from 135 to 270K, J Chem Thermodynam , 1972, 4, 773-782 Oetting F L

中文字典-英文字典 2005-2009