乙酸

InChI

1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)

SMILES string

[F2C(F2C)13F3C]C(O)=O

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

grade

ACS reagent, puriss. p.a.

agency

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

vapor density

2.07 (vs air)

assay

≥99.8%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F, 4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

≤0.0002% acetaldehyde, ≤0.0005% non-volatile matter, ≤0.002% KMnO₄ red. matter (as HCOOH), ≤0.01% acetic anhydride (GC), ≤0.2% water (Karl Fischer)

color

APHA: ≤10

refractive index

n20/D 1.371 (lit.)

pH

2.4 (60.05 g/L)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

transition temp

freezing point ≥16.3 °C

density

1.04 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.5 mg/kg, phosphate (PO₄^3-): ≤0.5 mg/kg, sulfate (SO₄^2-): ≤0.5 mg/kg

cation traces

Ag: ≤0.01 mg/kg, Al: ≤0.05 mg/kg, As: ≤0.01 mg/kg, Ba: ≤0.01 mg/kg, Be: ≤0.01 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.2 mg/kg, Cd: ≤0.02 mg/kg, Co: ≤0.01 mg/kg, Cr: ≤0.05 mg/kg, Cu: ≤0.01 mg/kg, Fe: ≤0.2 mg/kg, Ge: ≤0.05 mg/kg, K: ≤0.1 mg/kg, Li: ≤0.01 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.01 mg/kg, Mo: ≤0.02 mg/kg, Na: ≤0.5 mg/kg, Ni: ≤0.05 mg/kg, Pb: ≤0.02 mg/kg, Sr: ≤0.01 mg/kg, Ti: ≤0.01 mg/kg, Tl: ≤0.05 mg/kg, V: ≤0.01 mg/kg, Zn: ≤0.05 mg/kg, Zr: ≤0.1 mg/kg

suitability

passes test for indifference to chromic acid

Quality Level

100