1.02950

Diméthylsulfoxyde

for spectroscopy Uvasol^®

• Synonyme(s) : DMSO, Sulfoxyde de méthyle
• Formule linéaire : (CH₃)₂SO
• Numéro CAS: 67-68-5
• Poids moléculaire : 78.13
• UNSPSC Code: 12191502
• NACRES: NA.03
• EC Index Number: 200-664-3
• MDL number: MFCD00002089
• Beilstein/REAXYS Number: 506008
• Assay: ≥99.8% (GC)
• Technique(s): UV/Vis spectroscopy: suitable
• Bp: 189 °C (lit.)
• Vapor pressure: 0.42 mmHg ( 20 °C)

Propriétés

• Quality Segment: 100
• vapor density: 2.7 (vs air)
• vapor pressure: 0.42 mmHg ( 20 °C)
• assay: ≥99.8% (GC)
• form: liquid
• autoignition temp.: 573 °F
• potency: 28300 mg/kg LD₅₀, oral (Rat), 40000 mg/kg LD₅₀, skin (Rat)
• expl. lim.: 42 %, 63 °F
• technique(s): UV/Vis spectroscopy: suitable
• impurities: ≤0.0002 meq/g Acidity, ≤0.0002 meq/g Alkalinity, ≤0.05% Water
• evapn. residue: ≤0.0004%
• color: APHA: ≤10
• transmittance: 270 nm, ≥35%, 280 nm, ≥50%, 310 nm, ≥80%, 330 nm, ≥90%, 350 nm, ≥97%
• refractive index: n20/D 1.479 (lit.)
• kinematic viscosity: 2.14 cSt
• bp: 189 °C (lit.)
• mp: 16-19 °C (lit.)
• transition temp: flash point 87 °C
• density: 1.10 g/mL (lit.)
• UV absorption: λ: 270 nm A_max: ≤0.46, λ: 280 nm A_max: ≤0.30, λ: 310 nm A_max: ≤0.10, λ: 330 nm A_max: ≤0.05, λ: 350 nm A_max: ≤0.013
• storage temp.: 2-30°C
• SMILES string: CS(C)=O
• InChI: 1S/C2H6OS/c1-4(2)3/h1-2H3
• InChI key: IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Description

General description

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.

Features and Benefits

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

Analysis Note

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

Other Notes

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Legal Information

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

Disclaimer

Refroidit facilement et revient doucement à la température de la pièce. Les produits solides peuvent être reliquéfiés par chauffage à la température ambiante sans abîmer le produit.

Informations sur la sécurité

• Classe de stockage: 10 - Combustible liquids
• Point d'éclair (°F): 188.6 °F - closed cup
• Point d'éclair (°C): 87 °C - closed cup