Polystyrene

Product Information
CAS
9003-53-6
Molecular Formula
C8H8
Molecular Weight
104.14900
Description
Insoluble in water and less dense than water. Contact may cause irritate skin, eyes, and mucous membranes. May be toxic by ingestion.;Styrene monomer, stabilized appears as a clear colorless to dark liquid with an aromatic odor. Vapors heavier than air and irritating to the eyes and mucous membranes. Subject to polymerization. If the polymerization takes place inside a closed container, the container may rupture violently. Less dense than water and insoluble in water. Used to make plastics, paints, and synthetic rubber.;GasVapor; Liquid; PelletsLargeCrystals; PelletsLargeCrystals, Liquid;Liquid;Liquid;COLOURLESS-TO-YELLOW OILY LIQUID.;COLOURLESS SOLID IN VARIOUS FORMS.;Colorless to yellow, oily liquid with a sweet, floral odor.;Colorless to yellow, oily liquid with a sweet, floral odor.
Synonyms
PS
Boiling Point
293 to 295 °F at 760 mm Hg (NTP, 1992);145.0 °C;145.3 °C;145 °C;293°F;293°F
Melting Point
464 °F (NTP, 1992);-24 to -23 °F (NTP, 1992);-31.0 °C;Mp -33 °;-30.65 °C;-33°C;-30.6 °C;240 °C;-23°F;-23°F
Flash Point
88 °F (NTP, 1992);32.0 °C (89.6 °F) - closed cup;88 °F (31 °C) - closed cup;34.4 °C (Tag closed cup); 36.7 °C (Tag open cup).;31 °C c.c.;345-360 °C;88°F;88°F
Purity
95%
Density
1.04 g/mL at 25 °C
Solubility
less than 1 mg/mL at 66° F (NTP, 1992);0.00 M;0.31 mg/mL at 25 °C;In water, 300 mg/L at 25 °C;Insoluble in water;Soluble in ethanol, ether, and acetone; miscible with benzene; slightly soluble in carbon tetrachloride;Soluble in carbon disulfide, alcohol, ether, methanol, acetone;Miscible with benzene;Soluble in ... toluene, ethanol, n-heptane, carbon tetrachloride ...;0.31 mg/mL at 25 °C;Solubility in water, g/100ml at 20 °C: 0.03;0.03%
Appearance
Beads or pellets
Application
Extrusion molded foamed packaging, dinnerware, bottles and toys.
Storage
Store at room temperature
Refractive Index
1.5916
Safety Information
Hazards
Harmless-use normal precautions
Handling
Exercise normal care
Precautionary Statement
P262
Molecular WeightDescription
~ 100,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons,
tetrahydrofuran, esters). Mw/Mn ~ 1.06
~ 30,000,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons,
tetrahydrofuran, esters). Mw/Mn ~ 1.30
~ 1,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons,
tetrahydrofuran, esters). Mw/Mn ~ 1.30
~ 20,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons, tetrahydrofuran, esters. Mw/Mn ~ 1.06
~ 600 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons, tetrahydrofuran, esters. Mw/Mn ~ 1.30
~ 20,000,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons, tetrahydrofuran, esters. Mw/Mn ~ 1.20
~ 9,000 Solvent-soluble (aromatic hydrocarbons, chlorinated hydrocarbons,
tetrahydrofuran, esters). Mw/Mn ~ 1.04

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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