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
402788
Acetaldehyde
ACS reagent grade, ≥99.5%, liquid
Synonym(s):
Ethanal
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 mL | Please contact Customer Service for Availability | $64.70 |
100 mL | Please contact Customer Service for Availability | $119.00 |
1 L | Please contact Customer Service for Availability | $417.00 |
About This Item
Product Name
Acetaldehyde, ACS reagent, ≥99.5%
biological source
synthetic
Quality Segment
grade
ACS reagent
vapor density
1.52 (vs air)
vapor pressure
14.63 psi ( 20 °C)
assay
≥99.5%
form
liquid
autoignition temp.
365 °F
expl. lim.
60 %
impurities
≤0.008 meq/g Titr. acid
evapn. residue
≤0.005%
refractive index
n20/D 1.332 (lit.)
bp
21 °C (lit.)
mp
−125 °C (lit.)
solubility
alcohols: soluble, water: miscible
density
0.785 g/mL at 25 °C (lit.)
functional group
aldehyde
storage temp.
2-8°C
SMILES string
CC=O
InChI
1S/C2H4O/c1-2-3/h2H,1H3
InChI key
IKHGUXGNUITLKF-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| description ACS reagent, ≥99.5% | description puriss. p.a., anhydrous, ≥99.5% (GC) | description natural, FG | description ReagentPlus®, ≥99.0% (GC) |
| assay ≥99.5% | assay ≥99.5% (GC) | assay ≥99% (GC) | assay ≥99.0% (GC) |
| solubility alcohols: soluble, water: miscible | solubility - | solubility - | solubility - |
| Quality Level 200 | Quality Level 200 | Quality Level 400, 300 | Quality Level 200 |
| density 0.785 g/mL at 25 °C (lit.) | density 0.785 g/mL at 25 °C (lit.) | density 0.785 g/mL at 25 °C (lit.) | density 0.785 g/mL at 25 °C (lit.) |
| refractive index n20/D 1.332 (lit.) | refractive index n20/D 1.332 | refractive index n20/D 1.332 (lit.) | refractive index n20/D 1.332 (lit.) |
| form liquid | form liquid | form liquid | form liquid |
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Signal Word
Danger
Hazard Codes
Hazard Classifications
Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class
3 - Flammable liquids
Flash Point (°F)
-38.0 °F - closed cup
Flash Point (°C)
-38.89 °C - closed cup
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves
Precautionary Statements
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How can I determine the shelf life / expiration / retest date of this product?
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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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