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/449/386/product-dating-information-mk.pdf
480983
Propyne
≥97%
Synonym(s):
Allylene, Methylacetylene
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vapor pressure
204.6 mmHg ( −49.5 °C)
Quality Level
assay
≥97%
form
gas
bp
−23.2 °C (lit.)
mp
−102.7 °C (lit.)
SMILES string
CC#C
InChI
1S/C3H4/c1-3-2/h1H,2H3
InChI key
MWWATHDPGQKSAR-UHFFFAOYSA-N
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Related Categories
1 of 4
This Item | 536172 | 414220 | 376841 |
|---|---|---|---|
| assay ≥97% | assay 99.5% | assay 99.7% | assay 97% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form gas | form - | form liquid | form liquid |
| mp −102.7 °C (lit.) | mp -188 °C (lit.) | mp −55 °C (lit.) | mp - |
| bp −23.2 °C (lit.) | bp -42.1 °C (lit.) | bp 240 °C (lit.) | bp 75 °C/20 mmHg (lit.) |
| vapor pressure 204.6 mmHg ( −49.5 °C) | vapor pressure 190 psi ( 37.7 °C), 8.42 atm ( 21.1 °C) | vapor pressure 0.13 mmHg ( 20 °C), 0.98 mmHg ( 50 °C) | vapor pressure - |
General description
Application
- As a fuel for stoichiometric low-pressure flat-flames in isomer-specific combustion studies.[2]
- In the synthesis of polycyclic aromatic hydrocarbons under various reaction conditions.[3]
- In the synthesis of phenylacetylenes.[3]
- In the selective synthesis of propene by catalytic hydrogenation using Pt/Al2O3 catalyst.[4]
Packaging
Compatible with the following:
Legal Information
signalword
Danger
hcodes
Hazard Classifications
Flam. Gas 1A - Press. Gas Compr. Gas - STOT SE 3
target_organs
Respiratory system
Storage Class
2A - Gases
wgk_germany
nwg
ppe
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
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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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