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2-Phenyl-1-propene

CAS No.
98-83-9
Chemical Name:
2-Phenyl-1-propene
Synonyms
AMS;Α-METHYLSTYRENE;ALPHA-METHYLSTYRENE;2-PHENYLPROPENE;A-METHYL STYRENE;ISOPROPENYLBENZENE;(1-Methylethenyl)benzene;à-methylstyrene;α-Methylphenylene;(1-methylethenyl)-benzen
CBNumber:
CB5302758
Molecular Formula:
C9H10
Molecular Weight:
118.18
MDL Number:
MFCD00008859
MOL File:
98-83-9.mol
MSDS File:
SDS
Last updated:2024-03-14 15:18:26

2-Phenyl-1-propene 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).
Dielectric constant 2.2799999999999998
InChIKey XYLMUPLGERFSHI-UHFFFAOYSA-N
LogP 3.48 at 25℃
Indirect Additives used in Food Contact Substances ALPHA-METHYLSTYRENE
FDA 21 CFR 175.300; 175.320; 177.1010; 177.2420; 178.3790
CAS DataBase Reference 98-83-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII D46R9753IK
IARC 2B (Vol. 101) 2013
NIST Chemistry Reference «alpha»-Methylstyrene(98-83-9)
EPA Substance Registry System .alpha.-Methylstyrene (98-83-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H226-H304-H317-H319-H335-H361fd-H411
Precautionary statements  P210-P273-P280-P301+P310-P303+P361+P353-P331
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
Toxicity LD50 orally in Rabbit: 4900 mg/kg
IDLA 700 ppm
NFPA 704
2
1 1

2-Phenyl-1-propene price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich M80903 α-Methylstyrene 99%, contains 15 ppm p-tert-butylcatechol as inhibitor 98-83-9 1l $59 2024-03-01 Buy
Sigma-Aldrich 8.06086 α-Methylstyrene (stabilisedwith4-tert-butylpyrocatechol)forsynthesis 98-83-9 100mL $28.6 2024-03-01 Buy
Sigma-Aldrich 8.06086 α-Methylstyrene (stabilisedwith4-tert-butylpyrocatechol)forsynthesis 98-83-9 1L $52.7 2024-03-01 Buy
Sigma-Aldrich 69168 α-Methylstyrene monomer analytical standard 98-83-9 1ml $38.8 2022-05-15 Buy
TCI Chemical M0429 alpha-Methylstyrene (stabilized with TBC) >99.0%(GC) 98-83-9 25mL $22 2024-03-01 Buy
Product number Packaging Price Buy
M80903 1l $59 Buy
8.06086 100mL $28.6 Buy
8.06086 1L $52.7 Buy
69168 1ml $38.8 Buy
M0429 25mL $22 Buy

2-Phenyl-1-propene Chemical Properties,Uses,Production

Description

Methylstyrene is a colorless liquid with a characteristic odor. Molecular weight = 118.19; Specific gravity(H2O:1) 5 0.91; Boiling point = 165.6℃; Freezing/Meltingpoint 5 2 23.3℃; Vapor pressure 5 2 mmHg at 20℃;Flash point = 54℃; Autoignition temperature 5 574℃.Explosive limits: LEL 5 1.9%; UEL 5 6.1%. HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 2, Reactivity 0. Insoluble in water.Potential Exposure: Tumorigen,Mutagen, Human Data; Primary Irritant. Methylstyrene isused as an additive, a plasticizer, and as a copolymer; usedin the production of modified polyester and alkyd resinformulations.

Chemical Properties

Methylstyrene is a colorless liquid with a characteristic odor.

Chemical Properties

clear colourless liquid

Physical properties

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

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.

Uses

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

Uses

Polymerization monomer, especially forpolyesters.

Production Methods

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

Definition

ChEBI: Alpha-Methylstyrene is an olefinic compound.

Synthesis Reference(s)

Journal of the American Chemical Society, 108, p. 1322, 1986 DOI: 10.1021/ja00266a047
Tetrahedron Letters, 21, p. 2531, 1980 DOI: 10.1016/0040-4039(80)80120-1
Synthesis, p. 1034, 1987 DOI: 10.1055/s-1987-28164

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.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

Environmental Fate

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

storage

Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Store intightly closed containers in a cool, well-ventilated areaaway from oxidizers. Where possible, automatically pumpliquid from drums or other storage containers to processcontainers.

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

617-94-7
98-83-9
Synthesis of 2-Phenyl-1-propene from 2-PHENYL-2-PROPANOL
Global( 310)Suppliers
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Tianjin Zhongxin Chemtech Co., Ltd.
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View Lastest Price from 2-Phenyl-1-propene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Phenyl-1-propene pictures 2024-04-22 2-Phenyl-1-propene
98-83-9
US $5.00-4.00 / kg 185kg 99% 5000kg/week Hebei Yime New Material Technology Co., Ltd.
α-methylstyrene pictures 2024-04-15 α-methylstyrene
98-83-9
US $1.00 / mg 100mg 0.99 5ton/month ANHUI SHENGZHIKAI BIOTECHNOLOGY CO.,LTD
2-Phenyl-1-propene pictures 2023-12-26 2-Phenyl-1-propene
98-83-9
US $100.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
  • 2-Phenyl-1-propene pictures
  • 2-Phenyl-1-propene
    98-83-9
  • US $5.00-4.00 / kg
  • 99%
  • Hebei Yime New Material Technology Co., Ltd.
  • α-methylstyrene pictures
  • α-methylstyrene
    98-83-9
  • US $1.00 / mg
  • 0.99
  • ANHUI SHENGZHIKAI BIOTECHNOLOGY CO.,LTD
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