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Dimethyl sulfoxide

二甲基亚砜

品牌
Supelco
CAS
67-68-5
货号
1.02950
规格纯度
for spectroscopy Uvasol?
价格
1557.07 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
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半岛bd体育手机客户端 名称:
67-68-5
Dimethyl sulfoxide
Methanesulfinylmethane, Methyl sulfoxide, Dimethyl(oxido)sulfur, DMSO
DMSO
二甲基亚砜
甲基亚砜
半岛bd体育手机客户端 介绍:

半岛bd体育手机客户端 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 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 solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.

注意

容易过度冷却,并在室温下缓慢融化固化的半岛bd体育手机客户端 放在室温下可以再次液化,对其本身无影响。

半岛bd体育手机客户端 规格

Saturation Concentration in Air: 8.0 g/m3 (20 °C)

分析说明

Purity (GC): ≥ 99.8 %
Evaporation residue: ≤ 0.0004 %
Water: ≤ 0.05 %
Color: ≤ 10 Hazen
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Transmission (at 270?nm): ≥ 35 %
Transmission (at 280?nm): ≥ 50 %
Transmission (at 310?nm): ≥ 80 %
Transmission (at 330?nm): ≥ 90 %
Transmission (from 350?nm): ≥ 97 %
Absorbance (at 270?nm): ≤ 0.46
Absorbance (at 280?nm): ≤ 0.30
Absorbance (at 310?nm): ≤ 0.10
Absorbance (at 330?nm): ≤ 0.05
Absorbance (from 350?nm): ≤ 0.013

法律信息

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

基本信息

线性分子式 (CH3)2SO
分子量 78.13
Beilstein 506008
MDL编号 MFCD00002089
EC索引号 200-664-3

半岛bd体育手机客户端 性质

质量水平 100
蒸汽密度 2.7 (vs air)
蒸汽压 0.42 mmHg ( 20 ℃)
测定 ≥99.8% (GC)
形式 liquid
自燃温度 573 °F
效能 28300 mg/kg LD50, oral (Rat)
40000 mg/kg LD50, skin (Rat)
expl. lim. 42 %, 63 °F
technique(s) UV/Vis spectroscopy: suitable
杂质 ≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.05% Water
蒸发残留物 ≤0.0004%
颜色 APHA: ≤10
透射比 270 nm, ≥35%
280 nm, ≥50%
310 nm, ≥80%
330 nm, ≥90%
350 nm, ≥97%
折射率 n 20/D 1.479 (lit.)
kinematic viscosity 2.14 cSt
bp 189 ℃ (lit.)
mp 16-19 ℃ (lit.)
转变温度 flash point 87 ℃
密度 1.10 g/mL (lit.)
紫外吸收 λ: 270 nm Amax: ≤0.46
λ: 280 nm Amax: ≤0.30
λ: 310 nm Amax: ≤0.10
λ: 330 nm Amax: ≤0.05
λ: 350 nm Amax: ≤0.013
储存温度 2-30℃
SMILES string CS(C)=O
InChI 1S/C2H6OS/c1-4(2)3/h1-2H3
InChI key IAZDPXIOMUYVGZ-UHFFFAOYSA-N

安全信息

储存分类代码 10 - Combustible liquids
WGK WGK 1
闪点(F) 188.6 °F - closed cup
闪点(C) 87 ℃ - closed cup

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