1-甲基-2-吡咯烷酮

InChI

1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

SMILES string

CN1CCCC1=O

vapor density

3.4 (vs air)

vapor pressure

0.29 mmHg ( 20 °C), 0.99 mmHg ( 40 °C)

assay

≥99.0% (GC)

autoignition temp.

518 °F

quality

for metal speciation analysis

expl. lim.

9.5 %

impurities

≤0.1% water

refractive index

n20/D 1.47 (lit.), n20/D 1.470

bp

202 °C (lit.), 81-82 °C/10 mmHg (lit.)

mp

−24 °C (lit.)

density

1.028 g/mL at 25 °C (lit.)

anion traces

bromide (Br^-): ≤100 μg/kg, chloride (Cl^-): ≤100 μg/kg, iodide (I^-): ≤100 μg/kg, nitrate (NO₃^-): ≤200 μg/kg, nitrite (NO₂^-): ≤100 μg/kg, phosphate (PO₄^3-): ≤100 μg/kg, sulfate (SO₄^2-): ≤1000 μg/kg

cation traces

Ag: ≤2 μg/kg, Al: ≤5 μg/kg, As: ≤0.5 μg/kg, Au: ≤0.5 μg/kg, Ba: ≤2 μg/kg, Be: ≤0.5 μg/kg, Bi: ≤0.5 μg/kg, Ca: ≤10 μg/kg, Cd: ≤0.5 μg/kg, Ce: ≤0.5 μg/kg, Co: ≤0.5 μg/kg, Cr: ≤1 μg/kg, Cs: ≤0.5 μg/kg, Cu: ≤5 μg/kg, Fe: ≤10 μg/kg, Ga: ≤0.5 μg/kg, Ge: ≤1 μg/kg, Hg: ≤1 μg/kg, In: ≤0.5 μg/kg, Ir: ≤0.5 μg/kg, K: ≤20 μg/kg, Li: ≤0.5 μg/kg, Mg: ≤1 μg/kg, Mn: ≤0.5 μg/kg, Mo: ≤0.5 μg/kg, Na: ≤500 μg/kg, Ni: ≤1 μg/kg, Pb: ≤0.5 μg/kg, Pd: ≤0.5 μg/kg, Pt: ≤0.5 μg/kg, Rb: ≤1 μg/kg, Rh: ≤0.5 μg/kg, Ru: ≤0.5 μg/kg, Sb: ≤0.5 μg/kg, Se: ≤5 μg/kg, Sn: ≤0.5 μg/kg, Sr: ≤0.5 μg/kg, Ti: ≤1 μg/kg, Tl: ≤0.5 μg/kg, V: ≤1 μg/kg, Zn: ≤10 μg/kg, Zr: ≤1 μg/kg