Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)
Methyl Methacrylate
Description Top
| CAS number | 80-62-6 |
| UN number | 1247 |
| Chemical formula | C5H8O2 |
| Standard European Behaviour Classification (SEBC) | Evaporator that dissolves (ED) |
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 1 | R | 2 | NI | 0 | 0 | 0 | 2 | 2 | Ss | NI | ED | 2 |
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
Methyl Alpha-Methyl Acrylate
Methyl 2-Methyl-2-Propenoate
Methyl 2-Methyl Propenoate
2-Methyl 2-Propenoic Acid, Methyl Ester
2-Methyl Propenoic Acid, Methyl Ester
Methylpropylene-2-Carboxylate
Mma
Methyl Ester
Methyl Methacrylate
Methacrylate De Methyle
Methyl α-Methyl Acrylate
Methyl 2-Methyl-2-Propenoate
Methyl 2-Methyl Propenoate
2-Methyl 2-Propenoic Acid, Methyl Ester
2-Methyl Propenoic Acid, Methyl Ester
Methylpropylene-2-Carboxylate
Mma
Methyl Ester
Methyl Methacrylate
Methacrylate De Methyle
Methyl α-Methyl Acrylate
Physico-chemical properties Top
| Chemical formula | C5H8O2 | |||||
| Molar mass | 100.12 [g/mol] | |||||
| State | Liquid at 25°C and 1 atm | |||||
| Fusion temperature | -48 [°C] | |||||
| Boiling temperature | 101 [°C] | |||||
| Density |
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| Surface tension |
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| Interfacial tension |
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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) | 2 [°C] | |||||
| Flash point (Cleveland open cup) | 10 [°C] | |||||
| Lower explosivity limit (LEL) | 1.7 [%] | |||||
| Upper explosivity limit (UEL) | 12.5 [%] | |||||
| Vaporization enthalpy |
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| Combustion enthalpy | 25400000 [J/Kg] | |||||
| Specific heat capacity | 1910 [J/(Kg·K)] | |||||
| Combustion efficiency | 96 [%] | |||||
| Mass flow rate of the combustion surface | 0.06 [Kg/(m²·s)] | |||||
| Radiative fraction | 23 [%] | |||||
| Henry's constant | 26.3 [mol/(m³·Pa)] |
Behaviour Top
| Log Kow | 1.38 |
| Log Koc | 2.11 |
| Hydrolysis (Half-life) | Not hydrolysable |
| Aqueous photolysis (Half-life) | Not photolysable |
| Biodegradation in estuary environment (Half-life) | 10 days |
| Standard European Behaviour Classification (SEBC) | Evaporator that dissolves (ED) |
| Bioconcentration factor (BCF) | 6.2 |
Ecotoxicity Top
| Lowest median lethal concentration (LC50) on algae | > 110 [mg/l] | ||
| Lowest median lethal concentration (LC50) on crustacean | 69 [mg/l] | ||
| Lowest median lethal concentration (LC50) on fishes | > 79 [mg/l] | ||
| Highest no observed effect concentration (NOEC) on algae | 49 [mg/l] | ||
| Highest no observed effect concentration (NOEC) on crustacean | 37 [mg/l] | ||
| Highest no observed effect concentration (NOEC) on fishes | 40 [mg/l] | ||
| Assessment factor (AF) |
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| Predicted No Effect Concentration (PNEC) |
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Hazards Top
Danger
| IDLH | 1000 [ppm] |
Hazards statements
Physical
H225
Highly flammable liquid and vapour.
Health
H315
Causes skin irritation.
H317
May cause an allergic skin reaction.
H335
May cause respiratory irritation.
Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P302 + P352
IF ON SKIN: Wash with plenty of soap and water.
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 |
| 1 | R | 2 | NI | 0 | 0 | 0 | 2 | 2 | Ss | NI | ED | 2 |
A1: Bioaccumulation
| Rating | Description |
| 1 | Very low potential to bioaccumulate |
A1a:
| Rating | Description | Criteria [mg/l] |
| 1 | Very low potential to bioaccumulate | 1 ≤ Log Kow < 2 |
A1b:
| Rating | Description |
| NI | No Information |
A2: Biodegradation
| Rating | Description |
| R | Readily biodegradable |
B1: Acute aquatic toxicity
| Rating | Description | Criteria [mg/l] |
| 2 | Slightly toxic | 10 < LC/EC/IC50 ≤ 100 |
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 | 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 |
| Ss | Skin Sensitization | Cause specific skin hypersensitivity or allergy following skin contact | Category 1 for Skin Sensitizers |
E1: Tainting of seafood
| Rating | Description |
| NI | No Information |
E2: Behaviour of chemicals in the marine environment
| Rating | Description |
| ED | Evaporator that dissolves |
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.
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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.