Acetonitrile - CHROMASOLV Plus - for HPLC - more than or equal to 99.9%

Code: 34998-2.5LSIG D2-231

Application

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

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Application

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

New Quality UPLC Plus Acetonitrile is suitable for all applications including:Mass spectrometry, HPLC, TLC, GPC, UV, IR, GC, Pesticide Residue Analysis, and RNA/DNA Synthesis and Purification.

General description

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.

Legal Information

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Important notice The article number 34998-4X2.5L will be discontinued. Please order the single bottle 34998-2.5L which is physically identical with the same exact specifications. The article number 34998-6X1L will be discontinued. Please order the single bottle 34998-1L which is physically identical with the same exact specifications.

Packaging

20, 50 L in Pure-Pac™ 2

200 L in Pure-Pac™ 2

1, 6×1, 2.5, 4×2.5, 4, 4×4 L in glass bottle

View returnable container options.

200 L in Pure-Pac™ 1

20 L in Nowpak™

Preparation Note

Product filtered through a 0.2 µm filter

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λH2O reference
application(s)food and beverages
assay≥99.9%
autoignition temp.973 °F
baseline drift measuring range≤12 mAU (210 nm)
bp81-82 °C (lit.)
density0.786 g/mL at 25 °C (lit.)
expl. lim.16 %
formliquid
gradeHPLC Plus
halogenated residue10 ng/L (as heptachlor epoxide)
HPLC-gradient≤1 mAU at 210 nm, ≤0.2 mAU at 254 nm
impurities≤0.0002% non-volatile matter, ≤0.5 ppb fluorescence (quinine) at 254 nm, ≤0.01% water (Karl Fischer), ≤0.001% free acid (as CH3COOH), ≤0.0001% free alkali (as NH3), ≤0.5 ppb fluorescence (quinine) at 365 nm
InChI keyWEVYAHXRMPXWCK-UHFFFAOYSA-N
InChI1S/C2H3N/c1-2-3/h1H3
mp−45 °C (lit.)
Quality Level100
refractive indexn20/D 1.344 (lit.)
SMILES stringCC#N
technique(s)IR spectroscopy: suitable, HPLC: suitable
UV absorptionλ: 235 nm Amax: ≤0.0044, λ: 200 nm Amax: ≤0.02, λ: 400 nm Amax: ≤0.0044, λ: 195 nm Amax: ≤0.10, λ: 228 nm Amax: ≤0.005, λ: 250 nm Amax: ≤0.0044
vapor density1.41 (vs air)
vapor pressure72.8 mmHg ( 20 °C)
Cas Number75-05-8
Hazard Class3
Un Number1648
Pack GroupII
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