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480983

Sigma-Aldrich

Propyne

≥97%

Synonim(y):

Allylene, Methylacetylene

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About This Item

Wzór liniowy:
CH3C≡CH
Numer CAS:
74-99-7
Masa cząsteczkowa:
40.06
Numer WE:
200-828-4
Numer MDL:
MFCD00036235
Kod UNSPSC:
12142100
Identyfikator substancji w PubChem:
24871730
NACRES:
NA.22
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ciśnienie pary

204.6 mmHg ( −49.5 °C)

Poziom jakości

100

Próba

≥97%

Formularz

gas

bp

−23.2 °C (lit.)

mp

−102.7 °C (lit.)

ciąg SMILES

CC#C

InChI

1S/C3H4/c1-3-2/h1H,2H3

Klucz InChI

MWWATHDPGQKSAR-UHFFFAOYSA-N

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Opis ogólny

Propyne (methylacetylene) is commonly used in gas welding.[1]

Zastosowanie

Propyne (CH3C≡CH) can be used:
  • 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]

Opakowanie

Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Informacje prawne

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
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króciec do węża

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Hose adapter, brass

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polecane

Numer produktu
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regulator

Numer produktu
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Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

H220,H280,H335

Klasyfikacja zagrożeń

Flam. Gas 1A - Press. Gas Compr. Gas - STOT SE 3

Organy docelowe

Respiratory system

Kod klasy składowania

2A - Gases

Klasa zagrożenia wodnego (WGK)

nwg

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
STBH2241
SHBK9547
BCBR8747V
SHBG8380V
SHBG8381V

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Jeśli potrzebujesz konkretnej wersji, możesz wyszukać konkretny certyfikat według numeru partii lub serii.

Wyszukaj dokument COA

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Propyne hydrogenation over alumina-supported palladium and platinum catalysts
Kennedy DR, et al.
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In situ generation of 1-propyne: A useful introduction of 1-propyne on unsaturated halogenated compounds through the Sonogashira reaction
Abraham E and Suffert J
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

      Helpful?

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