If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
242845
Acetic anhydride
ACS reagent grade, ≥98.0%, liquid
Sinonimo/i:
Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
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Nome del prodotto
Acetic anhydride, ACS reagent, ≥98.0%
InChI key
WFDIJRYMOXRFFG-UHFFFAOYSA-N
InChI
1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
SMILES string
CC(=O)OC(C)=O
grade
ACS reagent
vapor density
3.5 (vs air)
vapor pressure
10 mmHg ( 36 °C)
4 mmHg ( 20 °C)
assay
≥98.0%
form
liquid
autoignition temp.
629 °F
expl. lim.
10.3 %
impurities
MnO4- reducers, passes test
evapn. residue
≤0.003%
refractive index
n20/D 1.390 (lit.)
bp
138-140 °C (lit.)
mp
−73 °C (lit.)
solubility
H2O: slightly soluble
density
1.08 g/mL (lit.)
anion traces
chloride (Cl-): ≤5 ppm
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤5 ppm
cation traces
Fe: ≤5 ppm
heavy metals: ≤2 ppm
functional group
anhydride
ester
Quality Level
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Questo articolo | 33214 | 33214-M | 320102 |
|---|---|---|---|
| assay ≥98.0% | assay ≥99% (GC) | assay ≥99% (GC) | assay ≥99% |
| solubility H2O: slightly soluble | solubility - | solubility - | solubility water: slightly soluble |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| form liquid | form - | form - | form liquid |
| refractive index n20/D 1.390 (lit.) | refractive index n20/D 1.390 (lit.) | refractive index n20/D 1.390 (lit.) | refractive index n20/D 1.390 (lit.) |
| bp 138-140 °C (lit.) | bp 138-140 °C (lit.) | bp 138-140 °C (lit.) | bp 138-140 °C (lit.) |
Application
- 2-acetylamino-5-aminobenzenesulfonic acid[1]
- 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA)[2]
- 10-acetoxy-9-nitro-octadecanoic acid, allyl ester[3]
- 9-nitro-oleic acid[3]
General description
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
Classe di stoccaggio
3 - Flammable liquids
wgk
WGK 1
flash_point_f
120.2 °F - closed cup
flash_point_c
49 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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