Acetic anhydride

grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

vapor pressure

4 hPa ( 20 °C)

product line

EMSURE^®
OmniSolv^®

Assay

≥98.5% (GC)

form

liquid

autoignition temp.

330 °C

potency

630 mg/kg LD₅₀ oral (Rat)
4320 mg/kg LD₅₀ skin (Rabbit)

expl. lim.

2.0-10.2 % (v/v)

impurities

≤150 ppm Substances reducing potassium permanganate (as O)

evapn. residue

≤20 ppm

color

clearAPHA: ≤10

pH

3 (20 °C 10 g/L in H₂O)

mp

-73 °C

transition temp

flash point 49 °C

density

1.08 g/cm³ at 20 °C

anion traces

chloride (Cl^–): ≤2 ppm
phosphate (PO₄^3-): ≤5 ppm
sulfate (SO₄^2-): ≤5 ppm

cation traces

Al: ≤0.5 ppm
B: ≤0.02 ppm
Ba: ≤0.1 ppm
Ca: ≤0.5 ppm
Cd: ≤0.05 ppm
Co: ≤0.02 ppm
Cr: ≤0.05 ppm
Cu: ≤0.02 ppm
Fe: ≤0.1 ppm
Mg: ≤0.1 ppm
Mn: ≤0.02 ppm
Ni: ≤0.02 ppm
Pb: ≤0.1 ppm
Sn: ≤0.1 ppm
Zn: ≤0.1 ppm
heavy metals (as Pb): ≤2 ppm

storage temp.

2-30°C

InChI

1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N