<生产厂家价格>

二十烷

二十烷用途

【用途一】
用于特种表面活性剂和某些有机化学品的制备，也用于色谱分析参比物质。气相色谱固定液。
【用途二】
气相色谱分析标准，气相色谱固定液。有机合成。

二十烷名称

[ CAS 号 ]:
112-95-8

[ 中文名 ]:
分析纯正二十烷

[ 英文名 ]:
Icosane

[中文别名 ]:

二十烷

[英文别名 ]:

PARAFOL 20Z PARAFFIN, EICOSANE, DIDECYL
n-Eicosane
EICOSAN
LFA
DIDECYL
octyldodecane
Icosane
Eicosane
UNII-3AYA9KEC48
n-icosane

二十烷物理化学性质

[ 密度 ]:
0.8±0.1 g/cm3

[ 沸点 ]:
343.4±5.0 °C at 760 mmHg

[ 熔点 ]:
35-37 °C(lit.)

[ 分子式 ]:
C₂₀H₄₂

[ 分子量 ]:
282.547

[ 闪点 ]:
186.5±7.2 °C

[ 精确质量 ]:
282.328644

[ LogP ]:
11.38

[ 外观性状 ]:
无色晶体或腊状固体

[ 蒸汽密度 ]:
9.8 (vs air)

[ 蒸汽压 ]:
0.0±0.4 mmHg at 25°C

[ 折射率 ]:
1.441

[ 储存条件 ]:
库房通风低温干燥

[ 稳定性 ]:
Stable. Combustible. Incompatible with strong oxidizing agents.

二十烷MSDS

二十烷安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ 海关编码 ]:
2901100000

二十烷合成路线

二十烷上下游产品

二十烷上游产品

二十烷下游产品

二十烷制备

1. 烟草：FC，18；FC，26；FC，40

2.制法：

于装有搅拌器、温度计、回流冷凝器的1L反应瓶中，加入450g(2.0mol)^w无水1-溴癸烷(2),于120～140℃分批加入金属钠70g(切成小块，每块约3g)。每次加入一块，待反应完后再加入另一块。金属钠反应完后继续搅拌反应30min。慢慢滴加冷乙醇以分解未反应的金属钠。分出上层油层，热水洗涤两次，无水硫酸钠干燥后，减压分馏，收集193～198℃的馏分，得正二十烷(1)150g，收率51%。

二十烷海关

[ 海关编码 ]: 2901100000

[ 中文概述 ]:
2901100000 饱和无环烃。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:2.0%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 用作气体燃料的应报明包装容器容积, 散装货物应报明

[ Summary ]:
2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

二十烷文献

Development of direct conversion method for microalgal biodiesel production using wet biomass of Nannochloropsis salina.

Bioresour. Technol. 191 , 438-44, (2015)

In this work, the effects of several factors, such as temperature, reaction time, and solvent and acid quantity on in situ transesterification yield of wet Nannochloropsis salina were investigated. Un...

Bacterial patterning at the three-phase line of contact with microtextured alkanes.

Biofouling 31 , 297-307, (2015)

Aliphatic crystallites, characteristic of the eicosane and docosane components of naturally occurring lipids, were found to form microtextures that were structured by specific interactions with ordere...

Zinc oxide/polypyrrole nanocomposite as a novel solid phase microextraction coating for extraction of aliphatic hydrocarbons from water and soil samples.

Anal. Chim. Acta 884 , 52-60, (2015)

In this work, ZnO/PPy nanocomposite coating was fabricated on stainless steel and evaluated as a novel headspace solid phase microextraction (HS-SPME) fiber coating for extraction of ultra-trace amoun...

更多文献

二十烷