Acetonitrile CH₃CN - for HPLC ULTRA GRADIENT

Acetonitrile ULTRA GRADIENT is a high-purity solvent in gradient grade, specially developed for the most demanding liquid chromatography analyses (HPLC), including trace analysis, UV analysis, and fluorescence detection. It provides baseline stability, minimal interference, and high reproducibility of results.

Identification Data

• Chemical Name: Acetonitrile
• Synonyms: Methyl cyanide, Acetic acid nitrile
• Molecular Formula: CH₃CN
• Molar Mass: 41.05 g/mol
• CAS Number: 75-05-8
• EC Number (EINECS): 200-835-2

Physicochemical Properties

• Physical State: liquid
• Color: colorless
• Odor: aromatic
• Melting Point: -46°C
• Boiling Point: 81°C
• Autoignition Temperature: 524°C
• Flash Point: 2°C
• Explosion Limits: 3-16% vol.
• Viscosity (20°C): 0.357 mPa-s
• Vapor Pressure (20°C): 97 mbar
• Density (20°C): 0.78 g/cm³
• Solubility: completely miscible with water, alcohol, ethyl ether, acetone, benzene
• log POW: -0.34
• Vapor Density (air=1): 1.42
• Critical Temperature: 274.7°C
• Critical Pressure: 4.83 MPa
• Refractive Index (20°C): 1.344

Quality Parameters

• Content (GC): min. 99.9%
• Water (KF): max. 0.01%
• Acidity (CH₃COOH): max. 0.0005 meq/g
• Residue on Evaporation: max. 0.0005%
• Filtration: through a 0.2 µm membrane

UV Transmission (1 cm, water)

• 190 nm: min. 35%
• 195 nm: min. 85%
• 200 nm: min. 95%
• 220 nm: min. 98%
• 230 nm: min. 99%

Gradient Test (210 nm)

• Largest Peak: max. 2 mAU
• Baseline Deviation: max. 10 mAU

Fluorescence (Quinine Ion)

• 254 nm: max. 1 ppb
• 365 nm: max. 1 ppb

Transport Classification

• RID/ADR: Class 3, Packaging Group II
• UN: 1648

Hazard Statements (H)

• H215: Flammable product
• H302: Harmful if swallowed
• H312: Harmful in contact with skin
• H319: Causes serious eye irritation
• H332: Harmful if inhaled

Safety Statements (P)

• P210: Keep away from heat/sparks/open flames
• P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
• P403+P235: Store in a well-ventilated place. Keep cool

This product is intended for laboratory and instrumental use only. Not for food, cosmetic, or medical purposes.