Description Top
CAS number | 140-88-5 |
UN number | 1917 |
Chemical formula | C5H8O2 |
Standard European Behaviour Classification (SEBC) | Evaporator that dissolves (ED) |
Notable risks | Polymerization. |
A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
1 | R | 3 | 1 | 1 | 2 | 2 | 2 | 2 | CSs | T | ED | 3 |
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. |
Physico-chemical properties Top
Chemical formula | C5H8O2 | ||
Molar mass | 100.13 [g/mol] | ||
State | Liquid at 25°C and 1 atm | ||
Fusion temperature | -72 [°C] | ||
Boiling temperature | 99.5 [°C] | ||
Density |
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Kinematic viscosity |
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Hydrosolubility |
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Vapour pressure |
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Vapour density | 3.4 | ||
Flash point (Pensky-Martens closed cup) | 8 [°C] | ||
Flash point (Cleveland open cup) | 6.7 [°C] | ||
Lower explosivity limit (LEL) | 1.4 [%] | ||
Upper explosivity limit (UEL) | 14 [%] | ||
Vaporization enthalpy |
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Combustion enthalpy | 25700000 [J/Kg] | ||
Combustion efficiency | 96 [%] | ||
Mass flow rate of the combustion surface | 0.09 [Kg/(m²·s)] | ||
Radiative fraction | 23 [%] | ||
Henry's constant | 39.82 [mol/(m³·Pa)] |
Behaviour Top
Log Kow | 1.25 |
Log Koc | 1.62 |
Hydrolysis (Half-life) | Not hydrolysable |
Aqueous photolysis (Half-life) | Not photolysable |
Biodegradation in estuary environment (Half-life) | 150 days |
Biodegradation in marine environment (Half-life) | Not biodegradable |
Standard European Behaviour Classification (SEBC) | Evaporator that dissolves (ED) |
Bioconcentration factor (BCF) | 2.1 |
Ecotoxicity Top
Lowest median lethal concentration (LC50) on algae | 5.5 [mg/l] | ||
Lowest median lethal concentration (LC50) on crustacean | 7.9 [mg/l] | ||
Lowest median lethal concentration (LC50) on fishes | 4.6 [mg/l] | ||
Highest no observed effect concentration (NOEC) on crustacean | 0.19 [mg/l] | ||
Highest no observed effect concentration (NOEC) on fishes | 0.78 [mg/l] | ||
Assessment factor (AF) |
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Predicted No Effect Concentration (PNEC) |
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Hazards Top
Danger
GESAMP Top
A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
1 | R | 3 | 1 | 1 | 2 | 2 | 2 | 2 | CSs | T | ED | 3 |
Rating | Description |
1 | Very low potential to bioaccumulate |
Rating | Description | Criteria [mg/l] |
1 | Very low potential to bioaccumulate | 1 ≤ Log Kow < 2 |
Rating | Description |
NI | No Information |
Rating | Description |
R | Readily biodegradable |
Rating | Description | Criteria [mg/l] |
3 | Moderately toxic | 1 < LC/EC/IC50 ≤ 10 |
Rating | Description | Criteria [mg/l] |
1 | Low | 0.1 < NOEC ≤ 1 |
Rating | Description | Criteria [mg/Kg] |
1 | Slight | 300 < AOTE ≤ 2000 |
Rating | Description | Criteria [mg/Kg] |
2 | Moderate | 200 < ADTE ≤ 1000 |
Rating | Description | Criteria [mg/l] (4 hours exposure) |
2 | Moderate | 2 < AITE ≤ 10 |
Rating | Description | Sign | GHS category |
2 | Irritating | Marked erythema, Obvio | Irritant Category 2 |
Rating | Description | Sign | GHS category |
2 | Irritating | Marked conjunctival hy | Irritant Category 2A |
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 |
Ss | Skin Sensitization | Cause specific skin hypersensitivity or allergy following skin contact | Category 1 for Skin Sensitizers |
Rating | Description |
T | Substances are considered to cause tainting if a statistically significant off-flavour or smell can be detected following exposure of the fish for 24h to 1mg/l or less. |
Rating | Description |
ED | Evaporator that dissolves |
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 |
Danger
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.
HNS-MS has been funded by DG-ECHO under agreement ECHO/SUB/2014/693705 and runs from 1 January 2015 to 31 March 2017.