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

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Pentane

Description Top

CAS number 109-66-0
UN number 1265
Chemical formula C5H12
Standard European Behaviour Classification (SEBC) Evaporator (E)
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
3 R 3 NI 0 0 0 1 1 NI E 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
N-Pentane
Pentane


Physico-chemical properties Top

Chemical formula C5H12
Molar mass 72.149 [g/mol]
Critical molar volume 0.000311 [m³/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -129.67 [°C]
Boiling temperature 36.06 [°C]
Critical temperature 469.7 [°C]
Density
626.2 [Kg/m³] at a temperature of 20°C
642.9 [Kg/m³] at a temperature of 5°C
638.4 [Kg/m³] at a temperature of 10°C
627.8 [Kg/m³] at a temperature of 20°C
Surface tension
16 [mN/m] at a temperature of 20°C
15.49 [mN/m] at a temperature of 25°C
17.55 [mN/m] at a temperature of 5.1°C
16.77 [mN/m] at a temperature of 10.2°C
16.43 [mN/m] at a temperature of 16.43°C
Kinematic viscosity
0.35771 [cSt] at a temperature of 25°C
13377 [cSt] at a temperature of 5°C
1.3315 [cSt] at a temperature of 10°C
0.98758 [cSt] at a temperature of 20°C
Hydrosolubility
38 [mg/l] at a temperature of 25°C and salinity of 0‰
28 [mg/l] at a temperature of 25°C and salinity of 35‰
37 [mg/l] at a temperature of 20°C and salinity of 0‰
38 [mg/l] at a temperature of 20°C and salinity of 5‰
27 [mg/l] at a temperature of 20°C and salinity of 30‰
Vapour pressure
57328 [Pa] at a temperature of 20°C
Critical pressure 3370000 [Pa]
Vapour density 2.48
Flash point (Pensky-Martens closed cup) -49 [°C]
Lower explosivity limit (LEL) 1.5 [%]
Upper explosivity limit (UEL) 7.8 [%]
Vaporization enthalpy
357455 [J/Kg] at a temperature of 30.06°C
366190 [J/Kg] at a temperature of 25°C
Combustion enthalpy 48635463 [J/Kg]
Specific heat capacity 2317 [J/(Kg·K)]
Henry's constant 12800 [mol/(m³·Pa)]


Behaviour Top

Log Kow 3.64
Log Koc 1.86
Hydrolysis (Half-life) Not hydrolysable
Aqueous photolysis (Half-life) Not photolysable
Standard European Behaviour Classification (SEBC) Evaporator (E)
Bioconcentration factor (BCF) 80


Ecotoxicity Top

Lowest median lethal concentration (LC50) on crustacean 1.19 [mg/l]
Highest no observed effect concentration (NOEC) on algae 4.549 [mg/l]
Assessment factor (AF)
100 on the short-term
Predicted No Effect Concentration (PNEC)
27 [µg/l] on the short-term


Hazards Top

Flammable
Harmful
Health Hazard
Environmental Hazard

Danger

Hazards statements
Physical
H224
Extremely flammable liquid and vapour.
Health
H304
May be fatal if swallowed and enters airways.
H336
May cause drowsiness or dizziness.
Environmental
H411
Toxic to aquatic life with long lasting effects.

Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233
Keep container tightly closed.
P240
Ground/bond container and receiving equipment.
P241
Use explosion-proof electrical/ventilating/lighting/.../equipment.
P242
Use only non-sparking tools.
P243
Take precautionary measures against static discharge.
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
P271
Use only outdoors or in a well-ventilated area.
P273
Avoid release to the environment.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P312
Call a POISON CENTER or doctor/physician if you feel unwell.
P331
Do NOT induce vomiting.
P391
Collect spillage.
P301 + P310
IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303 + P361 + P353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304 + P340
IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P370 + P378
In case of fire: Use ... for extinction.
Storage
P405
Store locked up.
P403 + P233
Store in a well-ventilated place. Keep container tightly closed.
P403 + P235
Store in a well-ventilated place. Keep cool.
Disposal
P501
Dispose of contents/container to ...


GESAMP Top

More information on GESAMP Hazard Evaluation Procedure

GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
3 R 3 NI 0 0 0 1 1 NI E 2

A1: Bioaccumulation
Rating Description
3 Moderate potential to bioaccumulate
A1a:
Rating Description Criteria [mg/l]
3 Moderate potential to bioaccumulate 3 ≤ Log Kow < 4
A1b:
Rating Description
NI No Information
A2: Biodegradation
Rating Description
R Readily biodegradable
B1: Acute aquatic toxicity
Rating Description Criteria [mg/l]
3 Moderately toxic 1 < LC/EC/IC50 ≤ 10
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
1 Mildly irritating Mild conjunctival hype Irritant Category 2B
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
E Evaporator
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
Environmental 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.

  Consortium

  Contact us

Web: https://www.hns-ms.eu/

Tel : +32 (0)2 773-2102

Mail : hns-ms@naturalsciences.be

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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.