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1.00042

Supelco

Acetic anhydride

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

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Synonym(s):
Acetic anhydride, Acetyl acetate, Acetyl oxide
Linear Formula:
(CH3CO)2O
CAS Number:
Molecular Weight:
102.09
MDL number:
EC Index Number:
203-564-8

grade

ACS reagent

Quality Level

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 (PO43-): ≤5 ppm
sulfate (SO42-): ≤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

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1 of 4

This Item
33214320102691275
vibrant-m

1.00042

Acetic anhydride

vibrant-m

33214

Acetic anhydride

vibrant-m

320102

Acetic anhydride

vibrant-m

691275

Acetic anhydride

assay

≥98.5% (GC)

assay

≥99% (GC)

assay

≥99%

assay

≥99.5% (GC)

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

100

grade

ACS reagent

grade

ACS reagent, puriss. p.a.

grade

-

grade

-

impurities

≤150 ppm Substances reducing potassium permanganate (as O)

impurities

≤0.003% non-volatile matter, ≤0.01% KMnO4 red. matter (as O)

impurities

-

impurities

≤0.5% acetic acid

mp

-73 °C

mp

−73 °C (lit.)

mp

−73 °C (lit.)

mp

−73 °C (lit.)

General description

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Analysis Note

Purity (GC)≥ 98.5 %Identity (IR)conformsAppearanceclearColor≤ 10 HazenChloride (Cl)≤ 2 ppmSulfate (SO₄)≤ 5 ppmPhosphate (PO₄)≤ 5 ppmHeavy metals (as Pb)≤ 2 ppmReadily carbonizable substancesconformsSubstances reducing potassium permanganate (as O)≤ 150 ppmAl (Aluminium)≤ 0.5 ppmB (Boron)≤ 0.02 ppmBa (Barium)≤ 0.1 ppmCa (Calcium)≤ 0.5 ppmCd (Cadmium)≤ 0.05 ppmCo (Cobalt)≤ 0.02 ppmCr (Chromium)≤ 0.05 ppmCu (Copper)≤ 0.02 ppmFe (Iron)≤ 0.1 ppmMg (Magnesium)≤ 0.1 ppmMn (Manganese)≤ 0.02 ppmNi (Nickel)≤ 0.02 ppmPb (Lead)≤ 0.1 ppmSn (Tin)≤ 0.1 ppmZn (Zinc)≤ 0.1 ppmEvaporation residue
≤ 20 ppm≤ 20 ppm
Evaporation Number: 0.46

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

120.2 °F - closed cup

flash_point_c

49 °C - closed cup


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