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ketene

CAS 463-51-4C2H2OMW 42.04

ketene (CAS No. 463-51-4) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Organic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number463-51-4
Molecular FormulaC2H2O
Molecular Weight42.04
Melting Point-238 °F (NIOSH, 2024)
Boiling Point-69 °F at 760 mmHg (NIOSH, 2024)
LogP0.8
Purity按批次COA提供(不公开发布)
Packaging按订单/批次确认(不公开发布)
ApplicationsOrganic Chemicals
CategoryOrganic Chemicals

Where it is used

Organic Chemicals

Packaging & Supply

Packaging按订单/批次确认(不公开发布)
Purity按批次COA提供(不公开发布)
StorageSealed, cool and dry place
Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of ketene?

The CAS number of ketene is 463-51-4.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of ketene?

Main applications include Organic Chemicals.

How do I buy ketene or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

ketene · CAS 463-51-4 · C2H2O. UNII LEP3SM032A. Boiling Point: -69 °F at 760 mmHg (NIOSH, 2024); Boiling Point: -56 °C; Boiling Point: -49.8 °C @760 [mm Hg].

Identification

CAS Registry Number463-51-4
PubChem CID10038
Molecular formulaC2H2O
IUPAC nameethenone
UNII (FDA)LEP3SM032A

Computed Descriptors

Molecular Weight42.04
XLogP30.8
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass42.010564683
Monoisotopic Mass42.010564683
Topological Polar Surface Area17.1
Heavy Atom Count3
Formal Charge0

Physical & Chemical Properties

Boiling Point-69 °F at 760 mmHg (NIOSH, 2024)
Boiling Point-56 °C
Boiling Point-49.8 °C @760 [mm Hg]
Boiling Point-69 °F
Melting Point-238 °F (NIOSH, 2024)
Melting Point-150 °C
Melting Point-151 °C
Melting Point-238 °F
Vapor Density1.45 (AIR= 1)
Vapor Pressure750 [mm Hg] @-50 °C

Physical description & handling notes

  • Colorless gas with a penetrating odor; [NIOSH]
  • COLOURLESS GAS WITH CHARACTERISTIC ODOUR.
  • Colorless gas with a penetrating odor.
  • COLORLESS GAS
  • Colorless gas.
  • PENETRATING ODOR

GHS Hazard Classification

Reported hazard statementsH220 (100%), H315 (100%), H318 (100%), H330 (93.7%), H335 (93.7%), H370, H280, H319

H220 (100%): Extremely flammable gas [Danger Flammable gases]

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

Documented Uses

  • Used in the synthesis of acetic anhydride and other organic chemicals; [ACGIH] Polymerizes readily and cannot be stored. Obtained from diketene; [CAMEO]
  • CONVERSION OF HIGHER ACIDS INTO THEIR ANHYDRIDES
  • ACETYLATION IN MFR OF CELLULOSE ACETATE & ASPIRIN
  • PRINCIPALLY CHEM INT FOR ACETIC ANHYDRIDE FROM ACETIC ACID; FOR DEHYDROACETIC ACID AND ACETOACETIC ESTERS; FOR ACETOACETANILIDE & N,N-DIALKYLACETOACETAMIDES
  • Acetylating agent, generally reacting with compounds having an active hydrogen atom; reacts with ammonia to give acetamide. Starting point for making various commercially important products, especially acetic anhydride and acetate esters.
  • BY THERMAL DECOMPOSITION OF ACETONE, DIKETENE OR ACETIC ANHYDRIDE.

Synonyms

Ethenone; KETENE; Carbomethene; Keto-ethylene; 463-51-4; LEP3SM032A; DTXSID1052113; CHEBI:48003; KETOETHYLENE; RefChem:794269; DTXCID3030682; CHEBI:48002; 207-336-9; Ethylenone; KETEN; 12071-23-7

Frequently Asked Questions

What are the CAS number and molecular formula of ketene?

CAS 463-51-4; molecular formula C2H2O; molecular weight — g/mol.

What other names is ketene known by?

Ethenone, KETENE, Carbomethene, Keto-ethylene, 463-51-4, LEP3SM032A.

Is ketene classified as hazardous?

Hazard statements reported: H220, H315, H318, H330, H335.

What are the key physical properties of ketene?

Boiling Point: -69 °F at 760 mmHg (NIOSH, 2024); Boiling Point: -56 °C; Boiling Point: -49.8 °C @760 [mm Hg]; Boiling Point: -69 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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