3-METHYLHEPTANE Chemical Properties

Melting point:

-121--120°C

Boiling point:

118 °C(lit.)

Density 

0.705 g/mL at 25 °C(lit.)

vapor pressure 

0.73 psi ( 37.7 °C)

refractive index 

n20/D 1.398(lit.)

Flash point:

45 °F

form 

clear liquid

color 

Colorless to Almost colorless

Odor Threshold

0.027ppm

Water Solubility 

792 μg/kg at 25 °C (shake flask-GLC, Price, 1976)

BRN 

1730777

Henry's Law Constant

3.70 atm?m³/molat 25 °C (approximate - calculated from water solubility and vapor pressure)

Exposure limits

ACGIH: TWA 300 ppm

LogP

4.627 (est)

CAS DataBase Reference

589-81-1(CAS DataBase Reference)

EPA Substance Registry System

3-Methylheptane (589-81-1)

Safety Information

Hazard Codes 

F,Xn,N,Xi

Risk Statements 

11-38-50/53-65-67

Safety Statements 

9-16-29-33-60-61-62

RIDADR 

UN 1262 3/PG 2

WGK Germany 

3

Hazard Note 

Irritant/Highly Flammable

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

2901100000

MSDS

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3-METHYLHEPTANE Usage And Synthesis

Chemical Properties

Colorless liquid.

Physical properties

Colorless, flammable liquid with an odor resembling hexane. An odor threshold concentration of 1.5 ppm_v was reported by Nagata and Takeuchi (1990).

Uses

Calibration, organic synthesis.

Definition

ChEBI: 3-Methylheptane is an alkane.

Hazard

Flammable, dangerous fire risk.

Environmental Fate

Photolytic. Based on a photooxidation rate constant of 8.90 x 10^-12 cm³/molecule?sec for the reaction of 3-methylheptane and OH radicals, the estimated lifetime is 16 h during summer sunlight (Altshuller, 1991).
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. 3- Methylheptane will not hydrolyze because it does not contain a hydrolyzable functional group.

Solubility in organics

In methanol, g/L: 154 at 5 °C, 170 at 10 °C, 190 at 15 °C, 212 at 20 °C, 242 at 25 °C, 274 at 30 °C, 314 at 35 °C, 365 at 40 °C (Kiser et al., 1961); miscible in many liquid hydrocarbons, particularly saturated hydrocarbons.

3-METHYLHEPTANE(589-81-1)Related Product Information

• 3-CARENE
• ALPHA-(-)-THUJONE
• (1R)-(+)-ALPHA-PINENE
• 2-Ethylhexyl bromide
• 2-Ethylhexanoyl chloride
• (-)-VERBENONE
• (-)-MYRTENOL
• 2-Ethylhexyl chloroformate
• PINONIC ACID
• (-)-CIS-MYRTANYLAMINE
• ALPHA-PINENE
• PERHYDROFLUORENE
• D-(+)-Camphoric acid
• (-)-TRANS-MYRTANOL
• beta-Pinene
• 3-(Chloromethyl)heptane
• (1R,2R,3S,5R)-(-)-2,3-Pinanediol
• 2,4-DIMETHYLHEPTANE