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

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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


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
883.3 [Kg/m³] at a temperature of 25°C
Surface tension
26.4 [mN/m] at a temperature of 25°C
Kinematic viscosity
0.6 [cSt] at a temperature of 20°C
Hydrosolubility
10000000 [mg/l] at a temperature of 20°C and salinity of 0‰
Vapour pressure
17529 [Pa] at a temperature of 20°C
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
413419 [J/Kg] at a temperature of 65°C
443452 [J/Kg] at a temperature of 25°C
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)
500 on the short-term
Predicted No Effect Concentration (PNEC)
432 [µg/l] on the short-term


Hazards Top

Flammable
Harmful
Health Hazard

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

Flammable
Harmful
Health Hazard

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.