Isooktan, Uvasol® for spectroscopy, Supelco®
Leverantör: Merck
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Fara
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Synonyms:
Isobutyltrimethylmethane, Isooctane, Isobutyltrimethylethane
M-Clarity™ quality level = MQ100
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. Furthermore the transmittance is specified in accordance with Reag. Ph Eur and ACS.
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Formel:
(CH₃)₂CHCH₂C(CH₃)₃ MW: 114,23 g/mol Kokpunkt: 99,2 °C (1013 hPa) Smältpunkt: –107 °C Densitet: 0,692 g/cm³ (20 °C) Flampunkt: –12 °C Storage Temperature: Omgivande |
MDL Number:
MFCD00008943 CAS nummer: 540-84-1 EINECS: 208-759-1 UN: 1262 ADR: 3,II Merck Index: 13,05212 |
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Specifikation testresultat
| Purity (GC) | ≥99.8% |
| Evaporation Residue | ≤0.0002% |
| Water | ≤0.005% |
| Color | ≤10 Hazen |
| Acidity | ≤0.0002 meq/g |
| Alkalinity | ≤0.0002 meq/g |
| Fluorescence (as quinine at 254 nm) | ≤1.0 ppb |
| Fluorescence (as quinine at 365 nm) | ≤1.0 ppb |
| Transmission (at 205 nm) | ≥30% |
| Transmission (at 215 nm) | ≥65% |
| Transmission (at 220 nm) | ≥80% |
| Transmission (at 225 nm) | ≥85% |
| Transmission (at 235 nm) | ≥90% |
| Transmission (at 245 nm) | ≥98% |
| Transmission (from 255 nm) | ≥99% |
| Absorbance (at 205 nm) | ≤0.52 |
| Absorbance (at 215 nm) | ≤0.19 |
| Absorbance (at 220 nm) | ≤0.10 |
| Absorbance (at 225 nm) | ≤0.07 |
| Absorbance (at 235 nm) | ≤0.05 |
| Absorbance (at 245 nm) | ≤0.01 |
| Absorbance (from 255 nm) | ≤0.004 |
| Meet the requirements of 'Specific use spectroscopy' according to ACS and Reag. Ph. Eur. |
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