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78-81-9

78-81-9 structural image
Product Name: Isobutylamine
Formula: C4H11N
Synonyms: 1-Amino-2-methylpropane;5-Methoxy-2-iodophenylboronic acid;Isobutylamine
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Isobutylamine appears as a clear colorless liquid with a fishlike odor. Flash point 15 °F. Less dense (6.1 lb / gal) than water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion.
Color/Form Colorless liquid
Odor Amine odor
Boiling Point 154 to 156 °F at 760 mmHg (NTP, 1992)
Melting Point -121 °F (NTP, 1992)
Flash Point 15 °F (NTP, 1992)
Solubility Very soluble (NTP, 1992)
Density 0.739 at 68 °F (USCG, 1999) - Less dense than water; will float
Vapor Density 2.5 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
Vapor Pressure 100 mmHg at 65.8 °F (NTP, 1992)
LogP log Kow = 0.73
Stability/Shelf Life Stable during shipment.
Autoignition Temperature 712 °F (USCG, 1999)
Decomposition When heated to decomposition it emits toxic fumes of nitroxides.
Corrosivity Strongly caustic
Heat of Combustion -3013.5 kJ/mol at 25 °C (liquid); -3047.4 kJ/mol at 25 °C (gas)
Heat of Vaporization 33.85 kJ/mol at 25 °C
Surface Tension 21.75 mN/m at 25 °C; 19.02 mN/m at 50 °C
Refractive Index Index of refraction: 1.3988 at 17 °C/D
Dissociation Constants pKa = 10.68 at 25 °C (conjugate acid)
Kovats Retention Index 591 600 605 543 548 588 591 588
Other Experimental Properties CONVERSION UNITS: 1 MG/L= 334 PPM; 1 PPM= 2.99 MG/CU M
Chemical Classes Nitrogen Compounds -> Amines, Aliphatic

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Flame
Flammables
GHS02

Corrosion
Corrosives
GHS05

Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H225:Flammable liquids
H301:Acute toxicity,oral
H314:Skin corrosion/irritation
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233:Keep container tightly closed.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

COMPUTED DESCRIPTORS

Molecular Weight 73.14 g/mol
XLogP3 0.7
Hydrogen Bond Acceptor Count 1
Rotatable Bond Count 1
Exact Mass 73.089149355 g/mol
Monoisotopic Mass 73.089149355 g/mol
Topological Polar Surface Area 26 Ų
Heavy Atom Count 5
Formal Charge 0
Complexity 17.6
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Isobutylamine appears as a clear colorless liquid with a fishlike odor. Flash point 15 °F. Less dense (6.1 lb / gal) than water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion.