Methacrylaldehyde - Materials / Alfa Chemistry

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Methacrylaldehyde

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Catalog Number

ACMA00017371

Product Name

Methacrylaldehyde

Category

Polymers

Description

Methacrylaldehyde appears as a colorless liquid. Less dense than water. May be toxic by ingestion, inhalation and skin absorption. Severely irritating to skin and eyes. Used to make plastics.;Liquid;COLOURLESS LIQUID WITH PUNGENT ODOUR. TURNS PALE YELLOW ON EXPOSURE TO LIGHT AND AIR.;COLOURLESS-TO-YELLOW LIQUID WITH PUNGENT ODOUR.

IUPAC Name

2-methylprop-2-enal

Molecular Weight

70.09g/mol

Molecular Formula

C4H6O;CH3CH=CHCHO;C4H6O;CH2=C(CH3)CHO;C4H6O

Canonical SMILES

CC(=C)C=O

InChI

InChI=1S/C4H6O/c1-4(2)3-5/h3H,1H2,2H3

InChI Key

STNJBCKSHOAVAJ-UHFFFAOYSA-N

Boiling Point

68.4 °C;68.4 °C;104 °C;68 °C

Melting Point

-81.0 °C;-81 °C;-76.5 °C (trans), -69 °C (cis);-81 °C

Flash Point

35 °F (NFPA, 2010);35 °F (2 °C) (OPEN CUP);13 °C c.c.;-15 °C

Density

0.849 @ 25 °C/4 °C;Relative density (water = 1): 0.85;Relative density (water = 1): 0.8

Solubility

0.81 M;MISCIBLE WITH WATER, ETHANOL, ETHER;Water solubility = 5.9% (59,000 mg/L) at 20 °C;Solubility in water, g/100ml at 20 °C: 15-18 (freely soluble);Solubility in water, g/100ml at 20 °C: 6 (soluble)

Color/Form

COLORLESS LIQUID

Complexity

54.7

Covalently-Bonded Unit Count

EC Number

201-150-1

Exact Mass

70.041865g/mol

Formal Charge

Heat of Vaporization

29.0 kJ/mol @ 101.3 kPa

Heavy Atom Count

ICSC Number

0241;1259

Log P

0.63 (calculated)

MeSH Entry Terms

2-methylacrolein;methacrolein;methacrylaldehyde

Monoisotopic Mass

70.041865g/mol

NSC Number

8260

Other Experimental

CONVERSION FACTORS: 1 MG/L= 349 PPM; 1 PPM= 2.8 MG/CU M;Liquid molar volume = 0.08320 cu m/kmol;Heat of Formation (gas) = -70.8 kJ/mol at 25 °C

Refractive Index

INDEX OF REFRACTION: 1.4144 @ 20 °C/D; MAX ABSORPTION (ALCOHOL): 216 NM (LOG E= 4.04); SADTLER REF NUMBER: 8350

Rotatable Bond Count

RTECS Number

OZ2625000

UNII

9HRB24892H

UN Number

2396;2396;1143;2396;2396

Vapor Density

2.4 (AIR= 1);Relative vapor density (air = 1): 2.41;Relative vapor density (air = 1): 2.42

Vapor Pressure

154.99 mmHg;155 mm Hg @ 25 °C;Vapor pressure, kPa at 20 °C: 4.0;Vapor pressure, kPa at 20 °C: 16

Viscosity

0.49 mPa.s @ 20 °C;0.59 mm2/s at 20 °C

XLogP3

0.7

MSDS

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COA

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Spec Sheet

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