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Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
CN

02483

Supelco

酒精

standard for GC

别名:

乙醇

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About This Item

线性分子式:
CH3CH2OH
CAS号:
分子量:
46.07
Beilstein:
1718733
EC 号:
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24

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等级

analytical standard
standard for GC

质量水平

蒸汽密度

1.59 (vs air)

蒸汽压

44.6 mmHg ( 20 °C)

方案

≥99.9% (GC)

自燃温度

683 °F

保质期

limited shelf life, expiry date on the label

expl. lim.

19 %, 60 °F

技术

HPLC: suitable
gas chromatography (GC): suitable

折射率

n20/D 1.3600 (lit.)
n20/D 1.362

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相关类别

一般描述

乙醇是澄清无色溶液,可通过糖类发酵制取。因其杀菌性可用作外用消毒剂。它是酒精饮料的主要成分,并广泛用作药物制品的溶剂和防腐剂。作为可供人类接触或摄入物质的溶剂,广泛用于色素、香水、香味剂和药品生产。乙醇对中枢神经系统(CNS)具有抑制作用,并且由于对精神的影响作用而被视为药物。乙醇的作用机制复杂,可影响大脑的多个系统,最值得注意的是,它可作为GABA受体的激动剂。乙醇可掺入汽油,相比其他化石燃料,可降低CO和CO2 的排放,因此主要用于替代石油。[1]

应用

乙醇已用在GC-MS分析中作为内标,用于测定生物柴油中的甲醇和游离甘油。[2]也可作为GC分析的参考标准品,测定啤酒中的酒精。[2]

其他说明

销售限制可能适用

附注

1在瑞士分发和使用乙醇需要瑞士联邦酒精管理局的许可证。

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免责声明

The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.

象形图

FlameExclamation mark

警示用语:

Danger

危险声明

危险分类

Eye Irrit. 2 - Flam. Liq. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

55.4 °F - closed cup

闪点(°C)

13 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

法规信息

危险化学品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Determination of ethanol in beer by direct injection gas chromatography: a comparison of six identical systems
Clarkson, S.P., Ormrod, I.H.L., Sharpe, F.R.
Journal of the Institute of Brewing, 101.3, 191-193 (1995)
Simultaneous gas chromatographic determination of methanol and free glycerol in biodiesel
Mittelbach, M., Roth, G; and Bergmann, A.
Chromatographia, 42.7, 431-434 (1996)
Cem Kuscu et al.
Nature biotechnology, 32(7), 677-683 (2014-05-20)
RNA-guided genome editing with the CRISPR-Cas9 system has great potential for basic and clinical research, but the determinants of targeting specificity and the extent of off-target cleavage remain insufficiently understood. Using chromatin immunoprecipitation and high-throughput sequencing (ChIP-seq), we mapped genome-wide
S Enocksson et al.
The Journal of clinical investigation, 95(5), 2239-2245 (1995-05-01)
Although it is well established in several mammalian species that beta 3-adrenoceptors play a major role in regulating lipolysis and thermogenesis in adipose tissue, the functional existence and role of this receptor subtype in man has been controversial. We investigated
Gian Marco Leggio et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 39(8), 2017-2028 (2014-03-04)
Mesolimbic dopamine (DA) controls drug- and alcohol-seeking behavior, but the role of specific DA receptor subtypes is unclear. We tested the hypothesis that D3R gene deletion or the D3R pharmacological blockade inhibits ethanol preference in mice. D3R-deficient mice (D3R(-/-)) and

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