Polystyrene

Description	Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation.
IUPAC Name	styrene
Molecular Weight	104.15g/mol
Molecular Formula	[CH2CH(C6H5)]n
Canonical SMILES	C=CC1=CC=CC=C1
InChI	1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2,PPBRXRYQALVLMV-UHFFFAOYSA-N
InChI Key	PPBRXRYQALVLMV-UHFFFAOYSA-N
Boiling Point	293 to 295 °F at 760 mm Hg (NTP, 1992)
Melting Point	212 °C
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
Density	1.04 to 1.65 at 68 °F (NTP, 1992);0.906 at 68 °F (USCG, 1999);d20 0.91;0.9016 g/cu cm at 25 °C;Relative density (water = 1): 0.91;Relative density (water = 1): 1.04-1.13;0.91;0.91
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%
Application	Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery.
Storage	room temp
Autoignition Temperature	800 °F (NTP, 1992);914 °F (USCG, 1999);914 °F (490 °C);490 °C;427 °C
Composition	21 J/m (Izod, ASTM D 256, 23 °C),≤5% mineral oil
EC Number	202-851-5;500-008-9;614-500-7;619-344-3
Form	powder
MDL Number	MFCD00084450
Packaging	1 g in glass bottle
Quality Level	100
Refractive Index	n20D 1.5463;Index of refraction: 1.5440 at 25 °C
Transition Temperature	Tg 95 °C
Vapor Pressure	4.3 mm Hg at 59 °F ; 9.5 mm Hg at 86° F; 10 mm Hg at 95° F (NTP, 1992);6.40 mmHg;6.40 mm Hg at 25 °C;Vapor pressure, kPa at 20 °C: 0.67;5 mmHg;5 mmHg
Viscosity	0.696 cP at 25 °C