34998-M

Acetonitril

≥99.9%, HPLC Plus, suitable for HPLC

• Synonym(e): ACN, Cyanomethan, Ethylnitril, Methylcyanid
• Lineare Formel: CH₃CN
• CAS-Nummer: 75-05-8
• Molekulargewicht: 41.05
• Beilstein: 741857
• EG-Nummer: 200-835-2
• MDL-Nummer: MFCD00001878
• UNSPSC-Code: 12190000
• eCl@ss: 39031501
• PubChem Substanz-ID: 329755104
• NACRES: NA.21

Eigenschaften

• product name: Acetonitril, HPLC Plus, ≥99.9%
• Qualität: HPLC Plus
• Dampfdichte: 1.41 (vs air)
• Dampfdruck: 72.8 mmHg ( 20 °C)
• Assay: ≥99.9%
• Form: liquid
• Selbstzündungstemp.: 973 °F
• Expl.-Gr.: 16 %
• baseline drift measuring range: ≤12 mAU (210 nm)
• Methode(n): HPLC: suitable
• Verunreinigungen: ≤0.0001% free alkali (as NH₃); ≤0.0002% non-volatile matter; ≤0.001% free acid (as CH₃COOH); ≤0.01% water (Karl Fischer); ≤0.5 ppb fluorescence (quinine) at 254 nm; ≤0.5 ppb fluorescence (quinine) at 365 nm
• Halogenhaltiger Rückstand: 10 ng/L (as heptachlor epoxide)
• Brechungsindex: n20/D 1.344 (lit.)
• bp: 81-82 °C (lit.)
• mp (Schmelzpunkt): −45 °C (lit.)
• Dichte: 0.786 g/mL at 25 °C (lit.)
• HPLC-Gradient: ≤0.2 mAU at 254 nm; ≤1 mAU at 210 nm
• λ: H₂O reference
• UV-Absorption: λ: 195 nm A_max: ≤0.10; λ: 200 nm A_max: ≤0.02; λ: 228 nm A_max: ≤0.005; λ: 235 nm A_max: ≤0.0044; λ: 250 nm A_max: ≤0.0044; λ: 400 nm A_max: ≤0.0044
• Format: neat
• SMILES String: CC#N
• InChI: 1S/C2H3N/c1-2-3/h1H3
• InChIKey: WEVYAHXRMPXWCK-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Acetonitrile (MeCN) is widely employed as a solvent in various studies and has high dielectric constant (37.5). Various purification procedures to obtain different grades of acetonitrile for use in different studies (polarography, spectroscopy, etc.) have been reported by many researchers.

Anwendung

Verbessert die Selektivität für kritische analytische Anwendungen: HPLC, Spektrophotometrie und Rückstandsanalyse

Acetonitrile has been used to compose the gradient system for the HPLC detection of diphenylmethane diisocyanate, a polymeric degradation product.

Verpackung

Siehe Mehrweggebinde-Optionen.

Angaben zur Herstellung

filtriert durch einen 0.2 μm Filter

Sonstige Hinweise

Pure-Pac^® II Behälter benötigen Micromatic MacroVentilverbinder (Z560723) zur Lösungsmittel-Dispensierung.

Important notice
This product will be phased out towards early 2019. There is a replacement product available : 34998

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Rechtliche Hinweise

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Danger
• H-Sätze: H225,H302 + H312 + H332,H319
• P-Sätze: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 2
• Flammpunkt (°F): 35.6 °F - closed cup
• Flammpunkt (°C): 2 °C - closed cup