1,4-二氧六环

InChI

1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2

InChI key

RYHBNJHYFVUHQT-UHFFFAOYSA-N

SMILES string

C1COCCO1

grade

ACS reagent, puriss. p.a.

agency

USP/NF, reag. ISO, reag. Ph. Eur.

vapor density

3 (vs air)

vapor pressure

27 mmHg ( 20 °C), 40 mmHg ( 25 °C)

assay

≥99.5% (GC)

form

liquid

autoignition temp.

356 °F

contains

~25 mg/L 2,6-di-tert.-butyl-4-methylphenol as stabilizer

expl. lim.

22 %

technique(s)

GC/GC: suitable

impurities

≤0.001% free acid (as CH₃COOH), ≤0.001% non-volatile matter, ≤0.005% acetaldehyde, ≤0.005% peroxides (as H₂O₂), ≤0.01% carbonyl compounds (as HCHO), ≤0.05% water (Karl Fischer)

refractive index

n20/D 1.4210-1.4240

Quality Level

200

transition temp

solidification point ≤11 °C

density

1.034 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg, B: ≤0.02 mg/kg, Ba: ≤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, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Sn: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg

pH

6.0-8 (20 °C, 500 g/L)