Product: N,N-Dimethylformamide (DMF)
CAS No.: 68-12-2
Formula: C?H?NO
Manufacturer: Shaanxi Yanchang Petroleum Xinghua Chemical Co., Ltd.
Batch No.: 202606-04
Test Standard: HG/T2028-2009
Grade Achieved: Premium Grade (top tier)

Key test results (all meeting or exceeding premium-grade requirements):

• Purity: 99.96% (requirement ≥ 99.9%) – excellent.

• Methanol: Not detected – very clean.

• Water content: 0.019% (requirement ≤ 0.050%) – very low.

• Acidity (as formic acid): 0.0002% (requirement ≤ 0.0010%) – extremely low.

• Alkalinity (as dimethylamine): 0.0003% (requirement ≤ 0.0010%) – well within limits.

• pH (25°C, 20% aqueous): 7.05 (range 6.5–8.0) – neutral.

• Conductivity: 0.1 μS/cm (requirement ≤ 2.0) – very low, suitable for electronic-grade uses.

• Chroma (Hazen): <5 (requirement ≤5) – water-white.

• Iron content: 0.010 mg/kg (requirement ≤0.05) – negligible.

• Appearance: Colorless transparent liquid, no visible impurities – passed.

All parameters confirm the product meets the highest quality standard.