Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)
Octane
Description Top
| CAS number | 111-65-9 |
| UN number | 1262 |
| Chemical formula | C8H18 |
| Standard European Behaviour Classification (SEBC) | Floater that evaporates (FE) |
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 5 | R | 4 | NI | 0 | 0 | 0 | 0 | 0 | A | NI | FE | 2 |
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
N-Octane
Octane
Octane
Physico-chemical properties Top
| Chemical formula | C8H18 | ||
| Molar mass | 114.229 [g/mol] | ||
| Critical molar volume | 0.000492 [m³/mol] | ||
| State | Liquid at 25°C and 1 atm | ||
| Boiling temperature | 126 [°C] | ||
| Critical temperature | 568.7 [°C] | ||
| Density |
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| Surface tension |
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| Hydrosolubility |
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| Critical pressure | 2490000 [Pa] | ||
| Vapour density | 3.93 | ||
| Flash point (Pensky-Martens closed cup) | 13 [°C] | ||
| Flash point (Cleveland open cup) | 22 [°C] | ||
| Lower explosivity limit (LEL) | 1 [%] | ||
| Upper explosivity limit (UEL) | 6.5 [%] | ||
| Vaporization enthalpy |
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| Combustion enthalpy | 47715549 [J/Kg] | ||
| Specific heat capacity | 2229 [J/(Kg·K)] | ||
| Henry's constant | 324240 [mol/(m³·Pa)] |
Behaviour Top
| Log Kow | 5.18 |
| Log Koc | 2.64 |
| Hydrolysis (Half-life) | Not hydrolysable |
| Aqueous photolysis (Half-life) | Not photolysable |
| Standard European Behaviour Classification (SEBC) | Floater that evaporates (FE) |
| Bioconcentration factor (BCF) | 1200 |
Ecotoxicity Top
| Lowest median lethal concentration (LC50) on crustacean | 0.38 [mg/l] | |
| Highest no observed effect concentration (NOEC) on crustacean | 0.17 [mg/l] | |
| Assessment factor (AF) |
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| Predicted No Effect Concentration (PNEC) |
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Hazards Top
Danger
Hazards statements
Physical
H225
Highly flammable liquid and vapour.
Health
H304
May be fatal if swallowed and enters airways.
H315
Causes skin irritation.
H336
May cause drowsiness or dizziness.
Environmental
H410
Very toxic to aquatic life with long lasting effects.
Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P241
Use explosion-proof electrical/ventilating/lighting/.../equipment.
Response
P301 + P310
IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303 + P361 + P353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
Storage
P405
Store locked up.
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 |
| 5 | R | 4 | NI | 0 | 0 | 0 | 0 | 0 | A | NI | FE | 2 |
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 |
| NI | No Information |
A2: Biodegradation
| Rating | Description |
| R | 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) |
| 0 | Negligible | AITE > 20 |
D1: Skin irritation or corrosion
| Rating | Description | Sign |
| 0 | Not irritating | No clinical signs and/ |
D2: Eye irritation
| Rating | Description | Sign |
| 0 | Not irritating | No clinical signs and/ |
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 |
| FE | Floater that evaporates |
E3: Interference with the use of coastal amenities
| Rating | Interference | Description | Interpretation | Warning |
| 2 | Moderately objectionable | 1 is a persistent floater; and/or 2 is moderately acutely toxic; and/or 3 is irritating to skin and/or eyes; and/or 4 has long-term health effects other than carcinogenicity, mutagenicity or reprotoxicity; and/or 5 is highly flammable; and/or 6 is moderately flammable and is a floater with evaporative properties | 1 E2 = Fp; and/or 2 C1 and/or C2 and/or C3 = 23; and/or 3 D1 and/or D2 = 2; and/or 4 D3 contains Ss, Sr, T, A, N, or I; and/or 5 Flashpoint <23°C; and/or 6 Flashpoint 23°C to 60°C and E2 = FE or FED | Warning issued and possible closure of amenities |
GHS Security Information
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
Copyright © 2015–2024 HNS-MS Consortium
HNS-MS has been funded by DG-ECHO under agreement ECHO/SUB/2014/693705 and runs from 1 January 2015 to 31 March 2017.