ChemicalBook >  Product Catalog >  Organic Chemistry >  Hydrocarbons and derivatives >  Aromatic hydrocarbons >  2-Phenyl-1-propene

2-Phenyl-1-propene

Basic information Safety Related Supplier

2-Phenyl-1-propene Basic information

Product Name:
2-Phenyl-1-propene
CAS:
98-83-9
MF:
C9H10
MW:
118.18
EINECS:
202-705-0
Mol File:
98-83-9.mol
More
Less

2-Phenyl-1-propene Chemical Properties

Melting point:
−24 °C(lit.)
Boiling point:
165-169 °C(lit.)
Density 
0.909 g/mL at 25 °C(lit.)
vapor density 
4.1 (vs air)
vapor pressure 
2.1 mm Hg ( 20 °C)
refractive index 
n20/D 1.539
Flash point:
114 °F
storage temp. 
2-8°C
solubility 
560mg/l
form 
Liquid
color 
Clear colorless
PH
5-6 (500g/l, H2O)
explosive limit
0.9-6.6%(V)
Water Solubility 
insoluble
BRN 
969405
Exposure limits
NIOSH REL: TWA 50 ppm (240 mg/m3), STEL 100 ppm (485 mg/m3), IDLH 700 ppm; OSHA PEL: ceiling 100 ppm; ACGIH TLV: TWA 50 ppm, STEL 100 ppm (adopted).
InChIKey
XYLMUPLGERFSHI-UHFFFAOYSA-N
CAS DataBase Reference
98-83-9(CAS DataBase Reference)
NIST Chemistry Reference
«alpha»-Methylstyrene(98-83-9)
EPA Substance Registry System
.alpha.-Methylstyrene (98-83-9)
More
Less

Safety Information

Hazard Codes 
Xi,N
Risk Statements 
10-36/37-51/53
Safety Statements 
61
RIDADR 
UN 2303 3/PG 3
WGK Germany 
2
RTECS 
WL5075300
Autoignition Temperature
445 °C
TSCA 
Yes
HS Code 
2902 90 00
HazardClass 
3
PackingGroup 
III
Hazardous Substances Data
98-83-9(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 4900 mg/kg

MSDS

More
Less

2-Phenyl-1-propene Usage And Synthesis

Chemical Properties

clear colourless liquid

Chemical Properties

Methylstyrene is a colorless liquid with a characteristic odor.

Physical properties

Colorless liquid with a sharp aromatic odor. Odor threshold concentration is 290 ppb (quoted, Amoore and Hautala, 1983).

Uses

Intermediate for ABS plastics, Styrene - Butadiene rubber, Polystyrene, Styrene - Acrylonitrile Resins, Perfumery, Polyalphamethyl Styrene, Polyester resins

Uses

Polymerization monomer, especially forpolyesters.

Uses

α-Methylstyrene is not a styrenic monomer in the strict sense. The methyl substitution on the side chain, rather than the aromatic ring, moderates its reactivity in polymerization. It is used as a specialty monomer in ABS resins, coatings, polyester resins, and hot-melt adhesives. As a copolymer in ABS and polystyrene, it increases the heat-distortion resistance of the product. In coatings and resins, it moderates reaction rates and improves clarity.

Production Methods

α-Methylstyrene (AMS) is produced as a by-product in the production of phenol and acetone from cumene.

General Description

A colorless liquid. Insoluble in water and less dense than water. Flash point 115°F. May be mildly toxic by ingestion, inhalation and skin absorption. Vapors may be narcotic by inhalation. Used as a solvent and to make other chemicals.

Air & Water Reactions

Flammable. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick, 1979 p.151-154, 164]. Insoluble in water.

Reactivity Profile

2-Phenyl-1-propene is easily peroxidizable; the peroxide may initiate exothermic polymerization of the bulk material. Reacts violently with strong oxidizing agents [Handling Chemicals Safely, 1980 p. 866; Bretherick, 1979 p. 160].

Hazard

Moderate fire risk. Explosive limits in air1.9–6.1%. Avoid inhalation and skin contact. Upperrespiratory tract irritant, kidney and female repro-ductive damage. Possible carcinogen.

Health Hazard

Inhalation causes irritation of respiratory tract, headache, dizziness, light-headedness, and breathlessness. Ingestion causes irritation of mouth and stomach. Contact with liquid irritates eyes. Prolonged skin contact can cause severe rashes, swelling, and blistering.

Safety Profile

Mildly toxic by inhalation. Human systemic effects by inhalation: irritant effects. A skin and eye irritant. Flammable when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes.

Potential Exposure

Methylstyrene is used as additive, plasticizer, and copolymer; used in the production of modified polyester and alkyd resin formulations.

Environmental Fate

Chemical/Physical. Polymerizes in the presence of heat or catalysts (Hawley, 1981).

Shipping

UN2303 Isopropenylbenzene, Hazard Class: 3; Labels: 3-Flammable liquid

Purification Methods

Wash the monomer three times with aqueous 10% NaOH (to remove inhibitors such as quinol), then six times with distilled water, dry with CaCl2 and distil it unde

Incompatibilities

Vapors may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, peroxides, halogens, catalysts for vinyl or ionic polymers; aluminum, iron chloride; copper. Methylstyrene may form unstable peroxides; may polymerize. Usually contains an inhibitor, such as tert-butyl catechol.

Waste Disposal

ncineration, often by admixture with a more flammable solvent

2-Phenyl-1-propene Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

2-Phenyl-1-propeneSupplierMore

Tianjin Zhongxin Chemtech Co., Ltd.
Tel:
022-66880623
Email:
sales@tjzxchem.com;sales@tjzxchem.com
J & K SCIENTIFIC LTD.
Tel:
400-666-7788 010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
400-660-8290 21-61259100-
Email:
sh@meryer.com
Alfa Aesar
Tel:
400-610-6006
Email:
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel:
021-67121386 / 800-988-0390
Email:
Sales-CN@TCIchemicals.com
Basic information Safety Related Supplier