乙酸乙酯,Ethyl acetate [EtOAc];for spectroscopy Uvasol®, ≥99.9% (GC)

1008630500;1008632500;别名: EtOAc 线性分子式: CH3COOC2H5 CAS号: 141-78-6 分子量: 88.11 Beilstein: 506104 MDL编号: MFCD00009171 EC索引号: 205-500-4
货号(SKU): 1.00863
CAS号: 141-78-6
MDL号: MFCD00009171
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¥634.86

说明

一般描述

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol<TMSYMBOL></TMSYMBOL> solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol<TMSYMBOL></TMSYMBOL> solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.
 

法律信息

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany
 
 

属性

蒸汽密度

3 (20 °C, vs air)

质量水平

蒸汽压

73 mmHg ( 20 °C)

测定

≥99.9% (GC)

形式

liquid

自燃温度

801 °F

效能

5620 mg/kg LD50, oral (Rat)
>18000 mg/kg LD50, skin (Rabbit)

expl. lim.

2.2-11.5 %, 38 °F

technique(s)

UV/Vis spectroscopy: suitable

杂质

≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.01% Water

蒸发残留物

≤0.0002%

颜色

APHA: ≤10

透射比

255 nm, ≥20%
260 nm, ≥75%
263 nm, ≥80%
265 nm, ≥90%
270 nm, ≥98%

折射率

n20/D 1.3720 (lit.)

bp

76.5-77.5 °C (lit.)

mp

−84 °C (lit.)

转变温度

flash point -4 °C

溶解性

85.3 g/L

密度

0.902 g/mL at 25 °C (lit.)

紫外吸收

λ: 255 nm Amax: ≤0.70
λ: 260 nm Amax: ≤0.13
λ: 263 nm Amax: ≤0.10
λ: 265 nm Amax: ≤0.05
λ: 270 nm Amax: ≤0.01

格式

neat

储存温度

2-30°C

SMILES string

CCOC(C)=O

InChI

1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3

InChI key

XEKOWRVHYACXOJ-UHFFFAOYSA-N

 

安全信息

象形图

FlameExclamation mark

警示用语:

Danger

危险声明

危险分类

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

靶器官

Central nervous system

补充剂危害

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(F)

24.8 °F

闪点(C)

-4 °C

个人防护装备

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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