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Polystyrene

Product Name
Polystyrene
CAS No.
9003-53-6
Chemical Name
Polystyrene
Synonyms
3A;KB;r3;up1;up2;upm;ps2;hf10;hf55;hf77
CBNumber
CB4146768
Molecular Formula
H2
Formula Weight
2.01588
MOL File
9003-53-6.mol
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Polystyrene Property

Melting point:
212 °C
Boiling point:
30-80 °C
Density 
1.06 g/mL at 25 °C
refractive index 
n20/D 1.5916
Flash point:
>230 °F
storage temp. 
2-8°C
form 
powder
color 
White
Water Solubility 
insoluble
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey
ZJMWRROPUADPEA-UHFFFAOYSA-N
CAS DataBase Reference
9003-53-6
IARC
3 (Vol. 19, Sup 7) 1987
NIST Chemistry Reference
Polystyrene(9003-53-6)
EPA Substance Registry System
Polystyrene (9003-53-6)
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Safety

Hazard Codes 
Xi
Risk Statements 
41
Safety Statements 
26-36/37/39-24/25
RIDADR 
2211
WGK Germany 
3
RTECS 
WL6475000
TSCA 
Yes
HazardClass 
9
PackingGroup 
III
HS Code 
39039000
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
182427
Product name
Polystyrene
Purity
average Mw ~280,000 by GPC
Packaging
25g
Price
$51.5
Updated
2020/08/18
Sigma-Aldrich
Product number
182427
Product name
Polystyrene
Purity
average Mw ~280,000 by GPC
Packaging
1kg
Price
$184
Updated
2020/08/18
Alfa Aesar
Product number
041918
Product name
Polystyrene latex microsphere, 2 micron, 10 wt% dispersion in water
Packaging
15ml
Price
$184
Updated
2020/06/24
Alfa Aesar
Product number
041917
Product name
Polystyrene latex microsphere, 1 micron, 10 wt% dispersion in water
Packaging
15ml
Price
$184
Updated
2020/06/24
Strem Chemicals
Product number
06-2000
Product name
Styrene-divinylbenzene copolymer (20% cross-linked)
Packaging
50g
Price
$23
Updated
2020/06/24
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Polystyrene Chemical Properties,Usage,Production

Chemical Properties

Poly(styrene) is white powder or beads, or clear solid.Polystyrene is rigid with excellent dimensional stability, has good chemical resistance to aqueous solutions, and is an extremely clear material.
Impact polystyrene contains polybutadiene added to reduce brittleness. The polybutadiene is usually dispersed as a discrete phase in a continuous polystyrene matrix. Polystyrene can be grafted onto rubber particles, which assures good adhesion between the phases.

Chemical Properties

The specific gravity of general purpose and impact polystyrene is 1.05. It can vary for copolymers. It is higher for some specialty grades. Density varies slightly with pressure, but for practical purposes, the polymer is noncompressible. In terms of heat-resistance, deflection temperatures range from about 66 to 99 °C (170 to 215 °F), depending upon the formulation. Continuous resistance to heat for polystyrene is usually 60 to 80 °C (140 to 175 °F). Time and load have a significant influence on the useful service temperature of a part.
Polystyrene is nontoxic when free from additives and residuals. It has no nutritive value and does not support fungus or bacterial growth. Dimensional stability of polystyrene resins is excellent. Mold shrinkage is small. The low moisture absorption (about 0.02%) allows fabricated parts to maintain dimensions and strength in humid environments.
General-purpose polystyrene is water white, and transmission of visible light is about 90%. Modifiers reduce this property, and translucence results. The refractive index is about 1.59; critical angle about 39. Polystyrene molecules do not have the same optical properties in all directions. When molecules become oriented in a given direction during fabrication, a double refraction occurs and a birefringence effect can be observed if the part is examined through a polarized lens under a polarized light source. Injection moldings often exhibit birefringence in a random pattern.

Uses

Containers, tubs, and trays formed from extruded impact polystyrene sheets are used for packaging a large variety of food. Biaxially oriented polystyrene film is thermoformed into blister packs, meat trays, container lids, and cookie, candy, pastry, and other food packages where clarity is required.
Housewares is another large segment of the use of polystyrenes. Refrigerator door liners and furniture panels are typical thermoformed impact polystyrene applications. Extruded profiles of solid or foamed impact polystyrene are used for mirror or picture frames, and moldings for construction applications.
General-purpose polystyrene is extruded either clear or embossed for room dividers, shower doors, glazings, and lighting applications. Injection molding of impact polystyrene is used for household items, such as flower pots, personal care products, and toys. General-purpose polystyrene is used for cutlery, bottles, combs, disposable tumblers, dishes, and trays. Injection blow molding can be used to convert polystyrene into bottles, jars, and other types of open containers.
Impact polystyrene with ignition-resistant additives is used for appliance housings, such as those for television and small appliances. Structural foam impact polystyrene modified with flame-retardant additives is used for business machine housings and in furniture because of its decorability and ease of processing. Consumer electronics, such as cassettes, reels, and housings, is a fast growing area for use of polystyrenes. Medical applications include sample collectors, petri dishes, and test tubes. In an effort to make homes and other buildings more energy efficient, the use of polystyrenes in extruded foam board with flame-retardant additives for walls and under slabs has experienced exceptional growth in recent years. Used as a sheeting material, extruded foam board complies with the requirements of the major building codes as well as federal and military specifications.

Uses

Packaging film; molded parts for automobiles, appliances, housewares, etc.; wire and cable coat- ing; food container closures; coated and laminated products; bottles; artificial grass and turfs; plastic pipe; wearing apparel (acid-dyed); fish nets; sur- gical casts; strapping; synthetic paper; reinforced plastics; nonwoven disposable filters.

Definition

ChEBI: A polymer composed of repeating ethyl benzene groups.

Definition

A synthetic polymer made from styrene (phenylethene). Expanded polystyrene is a rigid foam used in packing and insulation.

Definition

poly styrene: A clear glasslike materialmanufactured by free-radicalpolymerization of phenylethene(styrene) using benzoyl peroxide asan initiator. It is used as both a thermaland electrical insulator and forpacking and decorative purposes.

Hazard

Questionable carcinogen.

Industrial uses

Polystyrene is brittle at room temperature,becomes soft at 80°C, and is often modified bycopolymerization. Traditionally, it is used infilm form for capacitors, and it remains competitivefor this application. Poly styrene is alsoused for coaxial-cable insulation, but in woundstrip or bead form, because the solid is not veryflexible.

Safety Profile

Questionable carcinogen with experimental tumorigenic data by implant. When heated to decomposition it emits acrid smoke and irritating fumes. See also POLYMERS, IN SOLUBLE.

Purification Methods

Precipitate polystyrene repeatedly from CHCl3 or toluene solution by addition of MeOH. Dry it in vacuo. [Miyasaka et al. J Phys Chem 92 249 1988.]

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Polystyrene Suppliers

klamar reagent
Tel
4001650900
Fax
021-64897811
Email
sales-wang@klamar-reagent.com
Country
China
ProdList
1990
Advantage
55
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Fax
86-21-61259102
Email
sh@meryer.com
Country
China
ProdList
40268
Advantage
62
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30163
Advantage
84
BeiJing Hwrk Chemicals Limted
Tel
0757-86311057-
Fax
0757-86311057
Email
kennyrong@hwrkchemical.com
Country
China
ProdList
18708
Advantage
55
Energy Chemical
Tel
021-58432009
Fax
021-58436166-800
Email
sales8178@energy-chemical.com
Country
China
ProdList
44026
Advantage
61
GL Biochem (Shanghai) Ltd
Tel
86-21-61263452 (tel), 86-13641803416(mobile)
Fax
86-21-61263399
Email
ymbetter@glbiochem.com
Country
China
ProdList
9721
Advantage
64
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078,021-50426030
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
10009
Advantage
60
Adamas Reagent, Ltd.
Tel
400-600-9262
Email
bxy@titansci.com
Country
China
ProdList
13918
Advantage
59
Chengdu XiYa Chemical Technology Co., Ltd.
Tel
;
Fax
0539-6365991
Email
sale@xiyashiji.com;3007716753@qq.com
Country
China
ProdList
10576
Advantage
57
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View Lastest Price from Polystyrene manufacturers

Career Henan Chemical Co
Product
Polystyrene 9003-53-6
Price
US $9.80/KG
Min. Order
1g
Purity
≥99%
Supply Ability
100kg
Release date
2020-01-09
Shaanxi Dideu Medichem Co. Ltd
Product
Polystyrene 9003-53-6
Price
US $0.10/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
1000 tons
Release date
2020-01-06
Amikon Limited
Product
PS200
Price
US $99.00/EA
Min. Order
1EA
Purity
sales6@amikon.cn
Supply Ability
999 pcs
Release date
2018-10-09

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