TRANS-BETA-METHYLSTYRENE Property

Melting point:

-29°C(lit.)

Boiling point:

175 °C(lit.)

Density 

0.911 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.550(lit.)

Flash point:

127 °F

storage temp. 

2-8°C

Water Solubility 

Insoluble in water

solubility 

Chloroform, Methanol (Slightly)

form 

Liquid

color 

Clear colorless to very faintly yellow

BRN 

1361672

Dielectric constant

2.73

Stability:

Light Sensitive

CAS DataBase Reference

873-66-5(CAS DataBase Reference)

EPA Substance Registry System

trans-Propenylbenzene (873-66-5)

Safety

Hazard Codes 

Xn,N

Risk Statements 

10-37/38-41-43-51/53-65

Safety Statements 

16-26-36/37/39-61-62

RIDADR 

UN 2618 3/PG 3

WGK Germany 

2

RTECS 

DA8400500

HazardClass 

3.2

PackingGroup 

III

HS Code 

29029000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H318Causes serious eye damage

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P331Do NOT induce vomiting.

P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

TRANS-BETA-METHYLSTYRENE Chemical Properties,Usage,Production

Chemical Properties

clear colourless to very faintly yellow liquid

Uses

Trans-β-methylstyrene was used in the epoxidation reaction of an oxidant solution with a solution of dichloromethane, where nickel is used as a catalyst and benzyltributylammonium bromide as a phase-transfer agent.

General Description

The product exhibits potential exothermic hazards at higher temperatures.

Purification Methods

Distil it under N2 from powdered NaOH through a Vigreux column (p 11), and pass it through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 3428 1987]. [Beilstein 5 III 1184, 5 IV 1359.]