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

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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


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
940 [Kg/m³] at a temperature of 20°C
957.4 [Kg/m³] at a temperature of 5°C
953.4 [Kg/m³] at a temperature of 10°C
943.8 [Kg/m³] at a temperature of 20°C
Surface tension
28 [mN/m] at a temperature of 20°C
27.77 [mN/m] at a temperature of 5.1°C
27.1 [mN/m] at a temperature of 10.9°C
25.99 [mN/m] at a temperature of 19.8°C
Interfacial tension
14.3 [mN/m] at a temperature of 20°C and salinity of 0‰
Kinematic viscosity
0.65 [cSt] at a temperature of 20°C
0.56 [cSt] at a temperature of 25°C
2.1811 [cSt] at a temperature of 5°C
2.1292 [cSt] at a temperature of 10°C
1.9284 [cSt] at a temperature of 20°C
Hydrosolubility
16000 [mg/l] at a temperature of 20°C and salinity of 0‰
13640 [mg/l] at a temperature of 20°C and salinity of 0‰
13000 [mg/l] at a temperature of 20°C and salinity of 5‰
10370 [mg/l] at a temperature of 20°C and salinity of 30‰
Vapour pressure
3870 [Pa] at a temperature of 20°C
5100 [Pa] at a temperature of 25°C
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
359568 [J/Kg] at a temperature of 101°C
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)
1000 on the short-term
500 on the long-term
Predicted No Effect Concentration (PNEC)
69 [µg/l] on the short-term
74 [µg/l] on the long-term


Hazards Top

Flammable
Harmful

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

Flammable
Harmful

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.