聚(乙烯基甲基酮)

Description

Poly(vinyl methyl ketone) · CAS 25038-87-3 · C4H6O. UNII AR7642I1MP. Boiling Point: 179 °F at 760 mmHg (EPA, 1998); Boiling Point: 81.4 °C; Boiling Point: 81 °C.

Identification

CAS Registry Number	25038-87-3
PubChem CID	6570
Molecular formula	C4H6O
IUPAC name	but-3-en-2-one
UNII (FDA)	AR7642I1MP

Computed Descriptors

Molecular Weight	70.09
XLogP3	0.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	1
Exact Mass	70.041864811
Monoisotopic Mass	70.041864811
Topological Polar Surface Area	17.1
Heavy Atom Count	5
Formal Charge	0

Physical & Chemical Properties

Boiling Point	179 °F at 760 mmHg (EPA, 1998)
Boiling Point	81.4 °C
Boiling Point	81 °C
Boiling Point	179 °F
Boiling Point	81.4 °C @760 [mm Hg]
Melting Point	20 °F (EPA, 1998)
Melting Point	FP: 20 °F = -7 °C = 266 deg K
Melting Point	-7 °C
Melting Point	20 °F
Flash Point	20 °F (EPA, 1998)

Physical description & handling notes

• Methyl vinyl ketone appears as a clear colorless liquid with a pungent odor. Flash point 20 °F. May polymerize with the release of heat under exposure to heat or contamination. Less dense than water. Highly toxic by inhalation. Causes burns to skin, eyes and mucous membranes.
• Colorless liquid with a pungent odor; [HSDB] Colorless to pale yellow liquid with a strong irritating odor; [CHRIS]
• COLOURLESS-TO-YELLOW LIQUID WITH PUNGENT ODOUR.
• A clear colorless liquid with a pungent odor.
• Colorless liquid
• Pungent odor

GHS Hazard Classification

Reported hazard statements	H225 (99.4%), H300 (100%), H310 (45.5%), H314 (97.4%), H317 (44.8%), H318 (27.9%), H330 (97.4%), H400 (45.5%)

Documented Uses

• Used as an intermediate in chemical synthesis, an alkylating agent, and a monomer in resins; it is present in cigarette smoke; [HSDB] Used as a monomer to make styrene-MVK polymers for packaging applications; [ACGIH]
• Smoking cigarettes [Category: Food & Drugs]
• Alkylating agent; commercial starting material for plastics; as intermediate in synthesis of steroids and vitamin A
• Precursor of styrene-methyl vinyl ketone polymers which are useful as photodegradable polymers in packaging applications
• The Diels-Alder adduct with cyclopentadiene, methyl (5-norbornen-2-yl) ketone, is used as a precursor for pharmaceuticals such as Akineton (Knoll). Derivatives of alpha-vinyl lactic acid nitrile (from 3-buten-2-one and hydrocyanic acid) are used as fungicides, eg, Ronilan (BASF). The most important product based on 3-buten-2-one is 3-methyl-2-penten-4-in-1-ol, a building block in an industrial synthesis of vitamin A.
• ... By condensation of acetone and formaldehyde to 3-ketobutanol and dehydration to methyl vinyl ketone.

Synonyms

METHYL VINYL KETONE; 3-Buten-2-one; 78-94-4; but-3-en-2-one; Vinyl methyl ketone; Methylene acetone; 2-Butenone; Acetyl ethylene; Methylvinylketon; 1-Buten-3-one; Methyl ethenyl ketone; 3-Butene-2-one; Methylvinyl ketone; Methylvinylketone; 3-Butenone-2; Acetone, methylene-

Frequently Asked Questions

What are the CAS number and molecular formula of Poly(vinyl methyl ketone)?

CAS 25038-87-3; molecular formula C4H6O; molecular weight — g/mol.

What other names is Poly(vinyl methyl ketone) known by?

METHYL VINYL KETONE, 3-Buten-2-one, 78-94-4, but-3-en-2-one, Vinyl methyl ketone, Methylene acetone.

Is Poly(vinyl methyl ketone) classified as hazardous?

Hazard statements reported: H225, H300, H310, H314, H317.

What are the key physical properties of Poly(vinyl methyl ketone)?

Boiling Point: 179 °F at 760 mmHg (EPA, 1998); Boiling Point: 81.4 °C; Boiling Point: 81 °C; Boiling Point: 179 °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.