乙酸

产品名称

乙酸, glacial, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.8-100.5%

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

InChI

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

SMILES string

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

agency

meets purity specifications of USP (identity)

vapor density

2.07 (vs air)

grade

puriss.

assay

99.8-100.5%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

K₂Cr₂O₇ red. substances, complies
residual solvents, complies
≤0.0002% heavy metals (as Pb)
≤0.005% non-volatile matter
≤0.01% KMnO₄ red. matter (as HCOOH)

refractive index

n20/D 1.371 (lit.)

pH

2.5 (20 °C, 50 g/L)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

transition temp

freezing point ≥15.6 °C

density

1.04 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤2 mg/kg
sulfate (SO₄^2-): ≤5 mg/kg

cation traces

Al: ≤0.5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
Pb: ≤0.5 mg/kg
Zn: ≤5 mg/kg

suitability

corresponds for appearance

Quality Level

200

quality

meets analytical specification of Ph. Eur., BP, USP