Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)
Tetrahydrofuran
Description Top
| CAS number | 109-99-9 |
| UN number | 2056 |
| Chemical formula | C4H8O |
| Standard European Behaviour Classification (SEBC) | Dissolver that evaporates (DE) |
| Abilities | Miscible in water. |
| Notable risks | May form explosive peroxides. |
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 0 | R | 0 | NI | 0 | 0 | 0 | 1 | 2 | NI | DE | 2 |
Marine pollution Classification (MARPOL Annex II)
| Category | Description |
| Z | Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment. |
Alternate names for this chemical
Thf
Diethylneoxide
Tetramethyleneoxide
Tetrahydrofuran
Tetrahydrofurane
Diethylneoxide
Tetramethyleneoxide
Tetrahydrofuran
Tetrahydrofurane
Physico-chemical properties Top
| Chemical formula | C4H8O | ||
| Molar mass | 72.106 [g/mol] | ||
| Critical molar volume | 0.000224 [m³/mol] | ||
| State | Liquid at 25°C and 1 atm | ||
| Fusion temperature | -108.44 [°C] | ||
| Boiling temperature | 65 [°C] | ||
| Critical temperature | 540.5 [°C] | ||
| Density |
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| Surface tension |
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| Kinematic viscosity |
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| Hydrosolubility |
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| Vapour pressure |
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| Critical pressure | 5190000 [Pa] | ||
| Vapour density | 2.5 | ||
| Flash point (Pensky-Martens closed cup) | -14.5 [°C] | ||
| Flash point (Cleveland open cup) | -20 [°C] | ||
| Lower explosivity limit (LEL) | 2 [%] | ||
| Upper explosivity limit (UEL) | 11.8 [%] | ||
| Vaporization enthalpy |
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| Combustion enthalpy | 34880000 [J/Kg] | ||
| Specific heat capacity | 1720 [J/(Kg·K)] | ||
| Henry's constant | 7.09 [mol/(m³·Pa)] |
Behaviour Top
| Log Kow | 0.46 |
| Log Koc | 1.03 |
| Hydrolysis (Half-life) | Not hydrolysable |
| Standard European Behaviour Classification (SEBC) | Dissolver that evaporates (DE) |
| Bioconcentration factor (BCF) | 3 |
Ecotoxicity Top
| Lowest median lethal concentration (LC50) on crustacean | 5930 [mg/l] | |
| Lowest median lethal concentration (LC50) on fishes | 2160 [mg/l] | |
| Highest no observed effect concentration (NOEC) on fishes | 216 [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
H302
Harmful if swallowed.
H319
Causes serious eye irritation.
H335
May cause respiratory irritation.
H351
Suspected of causing cancer.
Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233
Keep container tightly closed.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P370 + P378
In case of fire: Use ... for extinction.
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 |
| 0 | R | 0 | NI | 0 | 0 | 0 | 1 | 2 | NI | DE | 2 |
A1: Bioaccumulation
| Rating | Description |
| 0 | No potential to bioaccumulate |
A1a:
| Rating | Description | Criteria [mg/l] |
| 0 | No potential to bioaccumulate | Log Kow < 1 |
A1b:
| Rating | Description |
| NI | No Information |
A2: Biodegradation
| Rating | Description |
| R | Readily biodegradable |
B1: Acute aquatic toxicity
| Rating | Description | Criteria [mg/l] |
| 0 | Non-toxic | LC/EC/IC50 > 1000 |
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 |
| 1 | Mildly irritating | Mild erythema with or | Mild Irritant Category 3 |
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 |
| No Information |
E1: Tainting of seafood
| Rating | Description |
| NI | No Information |
E2: Behaviour of chemicals in the marine environment
| Rating | Description |
| DE | Dissolver 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.