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

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1,5,9-Cyclododecatriene

Description Top

CAS number 4904-61-4
UN number 2518
Chemical formula C12H18
Standard European Behaviour Classification (SEBC) Floater (F)
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
5 NR 4 NI 0 0 1 2 1 A NI F 3

Marine pollution Classification (MARPOL Annex II)
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.

Alternate names for this chemical
Cdt
Cyclododeca-1,5,9-Triene
1,5,9-Cyclododecatriene


Physico-chemical properties Top

Chemical formula C12H18
Molar mass 162.271 [g/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -17 [°C]
Boiling temperature 240 [°C]
Density
840 [Kg/m³] at a temperature of 100°C
Hydrosolubility
5 [mg/l] at a temperature of 20°C and salinity of 0‰
0.34 [mg/l] at a temperature of 25°C and salinity of 0‰
Vapour pressure
120 [Pa] at a temperature of 20°C
Flash point (Pensky-Martens closed cup) 88 [°C]
Lower explosivity limit (LEL) 1 [%]
Upper explosivity limit (UEL) 4 [%]
Henry's constant 2847.2 [mol/(m³·Pa)]


Behaviour Top

Log Kow 5.1
Log Koc 3.73
Hydrolysis (Half-life) Not hydrolysable
Standard European Behaviour Classification (SEBC) Floater (F)
Bioconcentration factor (BCF) 2000


Ecotoxicity Top

Lowest median lethal concentration (LC50) on crustacean 0.47 [mg/l]
Lowest median lethal concentration (LC50) on fishes 2 [mg/l]


Hazards Top

Health Hazard
Environmental Hazard

Danger

Hazards statements
Health
H304
May be fatal if swallowed and enters airways.
Environmental
H410
Very toxic to aquatic life with long lasting effects.


GESAMP Top

GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
5 NR 4 NI 0 0 1 2 1 A NI F 3

A1: Bioaccumulation
Rating Description
5 Very high potential to bioaccumulate
A1a:
Rating Description Criteria [mg/l]
5 Very high potential to bioaccumulate Log Kow ≥ 5
A1b:
Rating Description Criteria
5 Very high potential to bioaccumulate BCF ≥ 4000
A2: Biodegradation
Rating Description
NR Not readily biodegradable
B1: Acute aquatic toxicity
Rating Description Criteria [mg/l]
4 Highly toxic 0.1 < LC/EC/IC50 ≤ 1
B2: Chronic aquatic toxicity
Rating Description
NI No Information
C1: Acute oral toxicity
Rating Description Criteria [mg/Kg]
0 Negligible 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)
1 Slight 10 < AITE ≤ 20
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
1 Mildly irritating Mild conjunctival hype Irritant Category 2B
D3: Long-term health effects
Notation Hazard endpoint Description GHS category
A Aspiration Lung injury or chemical pneumonia following aspiration of a chemical through the oral or nasal cavity into the trachea or lower respiratory system Category 1 for Aspiration Toxicity
E1: Tainting of seafood
Rating Description
NI No Information
E2: Behaviour of chemicals in the marine environment
Rating Description
F Floater
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

Health Hazard
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

Copyright © 2015–2019 HNS-MS Consortium

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.