N,N-Diethylformamide
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Product Description
N,N-Diethylformamide
Specification of Product
Product Name : N,N-Diethylformamide
DEF
CAS No.: 617-84-5
Molecular formula: C5H11NO
Molecular Weight: 101.15
Appearance: Colorless or pale yellow transparent liquid; free from visible impurities.
Properties: Toxic, flammable, odorous liquid.
Boiling point: 177-176°C
Relative density: 0.908 g/cm³
Flash point: 60°C
Solubility: Miscible with water and most organic solvents.
N,N-Diethylformamide Specification
Superior Grade First Grade Qualified Grade
Purity w/% ≥ 99.90 99.50 —
Ethanol w/% ≤ 0.003 0.005 0.010
Diethylamine w/% ≤ 0.005 0.010 0.015
Heavy components (As ethylformamide) w/% ≤ 0.05
Color, Hazen (Pt-Co) ≤ 5 10 20
Water W/% ≤ 0.050 — —
Iron (mg/kg) ≤ 0.05 — —
Acidity (as acetic acid) w/% ≤ 0.001 0.0020 0.0030
Alkalinity (as diethylamine) w /% ≤ 0.015 0.020 0.030
pH (25°C, 20%) 6.5~7.5 — —
Electrical conductivity (25°C) / (μS/cm) ≤ 2.0 — —
N,N-Diethylformamide Packing
200kg / Drum
N,N-Diethylformamide Storage
Stored in a cool, dry, clean, and well-ventilated area in a sealed container; storage together with oxidizing agents, acids, food, or food additives is strictly prohibited.
N,N-Diethylformamide Application
DEF is an eco-friendly solvent primarily used for photoresist cleaning in LCD, LED, and OLED panels; as a high-end cleaning solvent for semiconductors; as a solvent for polyurethane synthetic leather, shoe material ink resins, and water-based polyurethane resins; and as a solvent for lithium-ion battery slurries.