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Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)

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Styrene

Description Top

CAS number 100-42-5
UN number 2055
Chemical formula C8H8
Accident occurred Yes
Standard European Behaviour Classification (SEBC) Floater that evaporates (FE)
Notable risks Polymerization.
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
3 R 3 NI 1 0 2 2 2 CM NI FE 3

Marine pollution Classification (MARPOL Annex II)
Category Description
Y Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment.

Alternate names for this chemical
Cinnamene
Ethenylbenzene
Phenylethene
Phenethylene
Phenylethylene
Styrene Monomer
Styrol
Styrolene
Vinylbenzene
Vinylbenzol
Vinyl Benzene
Styrene


Physico-chemical properties Top

Chemical formula C8H8
Molar mass 104.15 [g/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -30.6 [°C]
Boiling temperature 145.2 [°C]
Density
910 [Kg/m³] at a temperature of 20°C
Surface tension
32.14 [mN/m] at a temperature of 20°C
Interfacial tension
35.48 [mN/m] at a temperature of 20°C and salinity of 0‰
Kinematic viscosity
0.83 [cSt] at a temperature of 20°C
0.75 [cSt] at a temperature of 25°C
Hydrosolubility
300 [mg/l] at a temperature of 20°C and salinity of 0‰
310 [mg/l] at a temperature of 25°C and salinity of 0‰
Vapour pressure
667 [Pa] at a temperature of 20°C
810 [Pa] at a temperature of 25°C
Vapour density 3.1
Flash point (Pensky-Martens closed cup) 31 [°C]
Flash point (Cleveland open cup) 34.4 [°C]
Lower explosivity limit (LEL) 0.9 [%]
Upper explosivity limit (UEL) 6.8 [%]
Vaporization enthalpy
371579 [J/Kg] at a temperature of 145.2°C
Combustion enthalpy 40500000 [J/Kg]
Specific heat capacity 1747.5 [J/(Kg·K)]
Combustion efficiency 70 [%]
Mass flow rate of the combustion surface 0.07 [Kg/(m²·s)]
Radiative fraction 60 [%]
Henry's constant 278 [mol/(m³·Pa)]


Behaviour Top

Log Kow 3.02
Log Koc 2.96
Hydrolysis (Half-life) Not hydrolysable
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) 15 days
Biodegradation in marine environment (Half-life) 50 days
Standard European Behaviour Classification (SEBC) Floater that evaporates (FE)
Bioconcentration factor (BCF) 74


Ecotoxicity Top

Lowest median lethal concentration (LC50) on algae 4.9 [mg/l]
Lowest median lethal concentration (LC50) on crustacean 4.7 [mg/l]
Lowest median lethal concentration (LC50) on fishes 4.02 [mg/l]
Highest no observed effect concentration (NOEC) on crustacean 1.01 [mg/l]
Assessment factor (AF)
100 on the short-term
1000 on the long-term
Predicted No Effect Concentration (PNEC)
40.2 [µg/l] on the short-term
4.02 [µg/l] on the long-term


Hazards Top

Harmful
Environmental Hazard

Danger

IDLH 700 [ppm]
Hazards statements
Health
H317
May cause an allergic skin reaction.
Environmental
H400
Very toxic to aquatic life.
H410
Very toxic to aquatic life with long lasting effects.

Precautionary statements
Prevention
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
P272
Contaminated work clothing should not be allowed out of the workplace.
P273
Avoid release to the environment.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P321
Specific treatment (see ... on this label).
P363
Wash contaminated clothing before reuse.
P391
Collect spillage.
P333 + P313
If skin irritation or rash occurs: Get medical advice/attention.
Disposal
P501
Dispose of contents/container to ...


GESAMP Top

GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
3 R 3 NI 1 0 2 2 2 CM NI FE 3

A1: Bioaccumulation
Rating Description
3 Moderate potential to bioaccumulate
A1a:
Rating Description Criteria [mg/l]
3 Moderate potential to bioaccumulate 3 ≤ Log Kow < 4
A1b:
Rating Description Criteria
2 Low potential to bioaccumulate 10 ≤ BCF < 100
A2: Biodegradation
Rating Description
R Readily biodegradable
B1: Acute aquatic toxicity
Rating Description Criteria [mg/l]
3 Moderately toxic 1 < LC/EC/IC50 ≤ 10
B2: Chronic aquatic toxicity
Rating Description
NI No Information
C1: Acute oral toxicity
Rating Description Criteria [mg/Kg]
1 Slight 300 < AOTE ≤ 2000
C2: Acute dermal toxicity (skin contact)
Rating Description Criteria [mg/Kg]
0 Negligible ADTE > 2000
C3: Acute inhalation toxicity
Rating Description Criteria [mg/l] (4 hours exposure)
2 Moderate 2 < AITE ≤ 10
D1: Skin irritation or corrosion
Rating Description Sign GHS category
2 Irritating Marked erythema, Obvio Irritant Category 2
D2: Eye irritation
Rating Description Sign GHS category
2 Irritating Marked conjunctival hy Irritant Category 2A
D3: Long-term health effects
Notation Hazard endpoint Description GHS category
C Carcinogenicity Chemicals which have been shown to induce or increase the incidence of cancer Category 1 for Carcinogens
M Mutagenicity Cause a permanent change in the amount or structure of genetic material in cells Categories 1 and 2 for Germ Cell Mutagens
E1: Tainting of seafood
Rating Description
NI No Information
E2: Behaviour of chemicals in the marine environment
Rating Description
FE Floater that evaporates
E3: Interference with the use of coastal amenities
Rating Interference Description Interpretation Warning
3 Highly objectionable 1 is highly acutely toxic; and/or 2 is severely irritant or corrosive to skin or eyes; and/or 3 is carcinogenic, mutagenic or reprotoxic; and/or 4 is a floater or persistent floater with associated health effects 1 C1 and/or C2 and/or C3 = 4; and/or 2 D1 or D2 = 3, 3A, 3B, or 3C; and/or 3 D3 contains C, M or R; and/or 4 E2 = F or Fp and D3 contains Ss, Sr, T, A, N, or I Warning issued leading to the closure of amenities

GHS Security Information

Harmful
Environmental Hazard

Danger

  About the project

HNS-MS is a decision-support tool that Belgian and French maritime authorities as well as coastguard stations can activate in order to forecast the drift, fate and behavior of acute marine pollution by Harmful Noxious Substances (HNS) accidentally released in the marine system.

  Contact us

Web: https://www.hns-ms.eu/

Tel : +32 (0)2 773-2102

Mail : hns-ms@naturalsciences.be

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EU flagHNS-MS has been funded by DG-ECHO under agreement ECHO/SUB/2014/693705 and runs from 1 January 2015 to 31 March 2017.