N,N-二甲基甲酰胺

grade

ACS reagent, puriss. p.a.

agency

reag. Ph. Eur.

Quality Level

200

vapor pressure

2.7 mmHg ( 20 °C)

assay

≥99.8% (GC)

form

liquid

autoignition temp.

833 °F

expl. lim.

15.2 %

technique(s)

GC/GC: suitable

impurities

≤0.003% free acid (as CH₃COOH), ≤0.005% free alkali (as NH₃), ≤0.005% non-volatile matter, ≤0.1% water (Karl Fischer)

color

APHA: ≤15

refractive index

n20/D 1.4290-1.4310

pH

7 (20 °C, 200 g/L)

bp

152-154 °C, 153 °C (lit.)

mp

−61 °C (lit.)

density

0.948-0.950 g/mL at 20 °C, 0.944 g/mL (lit.)

cation traces

Al: ≤0.5 mg/kg, B: ≤0.02 mg/kg, Ba: ≤0.1 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.1 mg/kg, K: ≤0.5 mg/kg, Li: ≥0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Mo: ≤0.1 mg/kg, Na: ≤1 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Sn: ≤0.1 mg/kg, Sr: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg