ETHYL TOLUENE

CAS Number: 95-63-6

Also known as: Pseudocumene, Trimethyl-1,2,4 Benzene, Trimethylbenzene, 1,2,4-Trimethylbenzene, 1,2,4-Trimethyl Benzene

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

CAS number	95-63-6
Formula	C₉H₁₂

Physical chemical data

Physical State (20°C)

Liquid

Physical State (25°C)

Liquid

Density (kg/m3)

881 [Kg/m³] at a temperature of 20°C

Kinematic viscosity (cSt)

0.843 [cSt] at a temperature of 20°C

Molar mass (g/mol)

120.19

Density of gas (kg/m3)

5.35

Solubility (g/L)

60 [g/L] at a temperature of 20°C and salinity of 0‰

42 [g/L] at a temperature of 25°C and salinity of 0‰

40 [g/L] at a temperature of 25°C and salinity of 34.5‰

Boiling Point (°C)

165.2

Melting Point (°C)

-80.8

Critical temperature (°C)

649.1

Critical pressure (Pa)

3232000

Surface tension (mN/m)

29.2 [mN/m] at a temperature of 25°C

Ignition Temperature (°C)

440

Flash Point (°C)

Flash Point (Pensky-Martens closed cup) (°C)

Lower explosivity limit (LEL) (volume %)

0.9

Upper explosivity limit (UEL) (volume %)

6.4

Vapor enthalpy (J/Kg)

398785 [J/Kg] at a temperature of 25°C

Combus enthalpy (J/Kg)

41000000

Specific heat capacity (J/(Kg·K))

1789

Combustion efficiency (%)

Mass flow rate of the combustion surface (Kg/(m²·s))

0.06

Rad fraction (%)

Henry's constant (mol/(m³·Pa))

624.162

Behaviour at sea

Log kow	3.78
Log koc	3.33
Aqueous photolysis (Half-life)	Not photolysable
Biodegradation in estuary environment (Half-life) (days)	Not hydrolysable
Biodegradation in marine environment (Half-life) (days)	10
Bioconcentration factor (BCF)	152

Additional data

Colour

colourless

Odour

pleasant

MARPOL pollution category

Category	Description
X	Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a major hazard to either marine resources or human health and, therefore, justify the prohibition of the discharge into the marine environment.

Transportation data

Cargo group	32
State	liquid
Temperature (°C)	ambient
Family name	aromatic hydrocarbons

Reactivity data

Water	No
Acid(s)	Yes
Oxidizing agents	Yes

GESAMP Hazard profile

Bioaccumulation in logPow (A1A)	3 - ≥3 and <4
Bioaccumulation (A1)	3 - Moderate potential to bioaccumulate
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l))	3 - Moderately toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	0 - Negligible
Skin irritation/corrosivity (D1)	2 - Irritating
Eye irritation/corrosivity (D2)	2 - Irritating
Interference with coastal amenities (E2)	F - Floating substance, not likely to evaporate or to dissolve quickly
Effects on wildlife and bottom habitats (E3)	2 - Is a persistent floater; and/or is moderately acutely toxic; and/or is irritating to skin and/or eyes; and/or has long-term health effects other than carcinogenicity, mutagenicity or reprotoxicity; and/or is highly flammable; and/or is flammable and is a floater with evaporative properties

Human toxicity threshold

Hazard statements

Physical

H226	Flammable liquid and vapour.

Health

H315	Causes skin irritation.
H319	Causes serious eye irritation.
H332	Harmful if inhaled.
H335	May cause respiratory irritation.

Environmental

H411	Toxic to aquatic life with long lasting effects.

Precautionary statements

Prevention

P210	Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P243	Take precautionary measures against static discharge.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P280	Wear protective gloves/protective clothing/eye protection/face protection.

Response

P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P302 + P352	IF ON SKIN: Wash with plenty of soap and water.

TEEL-1 (mg/m3)

500

TEEL-2 (mg/m3)

500

TEEL-3 (mg/m3)

500

Ecotoxicity

Lowest median lethal concentration (LC50) on crustacean (mg/l)

4.35

Lowest median lethal concentration (LC50) on fishes (mg/l)

7.72

Assessment factor (AF)

1 on the Short term

Predicted No Effect Concentration (PNEC) (µg/l)

120 [µg/l] on the Short term

Incident reports

No incident reports available

Emergency Response Guidebook

No guides available

At sea emergency guide

No guides available

Decision trees

Flammable

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No decision trees available

No additional data