Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)
Maleic Anhydride
Description Top
| CAS number | 108-31-6 |
| UN number | 2215 |
| Chemical formula | C4H2O3 |
| Standard European Behaviour Classification (SEBC) | Dissolves (D) |
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 1 | R | 2 | 0 | 1 | 2 | 3 | 3 | 3 | SsSr | NI | D | 3 |
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
Butenedioic Anhydride
2,5-Furandione
Toxilic Anhydride
Maleic Anhydride
2,5-Furandione
Toxilic Anhydride
Maleic Anhydride
Physico-chemical properties Top
| Chemical formula | C4H2O3 | |
| Molar mass | 98.057 [g/mol] | |
| State | Solid at 25°C and 1 atm | |
| Fusion temperature | 52.56 [°C] | |
| Boiling temperature | 202 [°C] | |
| Critical temperature | 721 [°C] | |
| Density |
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| Hydrosolubility |
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| Vapour pressure |
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| Critical pressure | 7280000 [Pa] | |
| Vapour density | 3.38 | |
| Flash point (Pensky-Martens closed cup) | 102 [°C] | |
| Flash point (Cleveland open cup) | 110 [°C] | |
| Lower explosivity limit (LEL) | 1.4 [%] | |
| Upper explosivity limit (UEL) | 7.1 [%] | |
| Henry's constant | 0.398 [mol/(m³·Pa)] |
Behaviour Top
| Log Kow | 1.62 |
| Log Koc | 0 |
| Hydrolysis (Half-life) | 0.00208 day |
| Standard European Behaviour Classification (SEBC) | Dissolves (D) |
| Bioconcentration factor (BCF) | 5 |
Ecotoxicity Top
| Lowest median lethal concentration (LC50) on fishes | 230 [mg/l] | |
| Highest no observed effect concentration (NOEC) on crustacean | 17.5 [mg/l] | |
| Highest no observed effect concentration (NOEC) on fishes | 150 [mg/l] | |
| Assessment factor (AF) |
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| Predicted No Effect Concentration (PNEC) |
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Hazards Top
Danger
Hazards statements
Health
H302
Harmful if swallowed.
H314
Causes severe skin burns and eye damage.
H317
May cause an allergic skin reaction.
H334
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary statements
Prevention
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
P284
Wear respiratory protection.
Response
P303 + P361 + P353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305 + P351 + P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P342 + P311
If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician.
GESAMP Top
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 1 | R | 2 | 0 | 1 | 2 | 3 | 3 | 3 | SsSr | NI | D | 3 |
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 | Criteria [mg/l] |
| 0 | Negligible | NOEC > 1 |
C1: Acute oral toxicity
| Rating | Description | Criteria [mg/Kg] |
| 1 | Slight | 300 < AOTE ≤ 2000 |
C2: Acute dermal toxicity (skin contact)
| Rating | Description | Criteria [mg/Kg] |
| 2 | Moderate | 200 < ADTE ≤ 1000 |
C3: Acute inhalation toxicity
| Rating | Description | Criteria [mg/l] (4 hours exposure) |
| 3 | Moderately high | 0.5 < AITE ≤ 2 |
D1: Skin irritation or corrosion
| Rating | Description | Sign | GHS category |
| 3 | Severely irritating or corrosive | Severe irritation indi | Corrosive Category 1 |
D2: Eye irritation
| Rating | Description | Sign | GHS category |
| 3 | Severely irritating or corrosive | Severe conjunctoblepha | Irritant Category 1 |
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 |
| Sr | Respiratory Sensitization | Cause specific hypersensitivity of the airways, or asthma, following inhalation | Category 1 for Respiratory Sensitizers |
E1: Tainting of seafood
| Rating | Description |
| NI | No Information |
E2: Behaviour of chemicals in the marine environment
| Rating | Description |
| D | Dissolves |
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
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.