Merck
All Photos(2)

1.02950

Supelco

Dimethyl sulfoxide

for spectroscopy Uvasol®

Synonym(s):
Methanesulfinylmethane, Methyl sulfoxide, Dimethyl(oxido)sulfur, DMSO, DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
Número MDL:
Número índice de la CE:
200-664-3

Nivel de calidad

100

densidad de vapor

2.7 (vs air)

presión de vapor

0.42 mmHg ( 20 °C)

ensayo

≥99.8% (GC)

formulario

liquid

temp. de autoignición

573 °F

potencia

28300 mg/kg LD50, oral (Rat)
40000 mg/kg LD50, skin (Rat)

lim. expl.

42 %, 63 °F

technique(s)

UV/Vis spectroscopy: suitable

impurezas

≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.05% Water

residuo de evap.

≤0.0004%

color

APHA: ≤10

transmitancia

270 nm, ≥35%
280 nm, ≥50%
310 nm, ≥80%
330 nm, ≥90%
350 nm, ≥97%

índice de refracción

n20/D 1.479 (lit.)

kinematic viscosity

2.14 cSt

bp

189 °C (lit.)

mp

16-19 °C (lit.)

temperatura de transición

flash point 87 °C

densidad

1.10 g/mL (lit.)

Absorción UV

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

temp. de almacenamiento

2-30°C

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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Descripción general

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.

Precaución

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Especificaciones

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

Nota de análisis

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

Información legal

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

Código de clase de almacenamiento

10 - Combustible liquids

WGK

WGK 1

Punto de inflamabilidad F

188.6 °F - closed cup

Punto de inflamabilidad C

87 °C - closed cup

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