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

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N-Butyl Acetate

Description Top

CAS number 123-86-4
UN number 1123
Chemical formula C6H12O2
Accident occurred Yes
Standard European Behaviour Classification (SEBC) Floater that evaporates and dissolves (FED)
Notable risks Vapours may form an explosive mixture with air.
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
1 R 2 NI 0 0 0 0 1 NI FED 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
Acetic Acid, N-Butyl Ester
1-Acetoxybutane
1-Butyl Acetate
Butyl Acetate
Butyl Ethanoate
Acetate De Butyle
N-Butyl Acetate


Physico-chemical properties Top

Chemical formula C6H12O2
Molar mass 116.2 [g/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -77.9 [°C]
Boiling temperature 126 [°C]
Density
880 [Kg/m³] at a temperature of 20°C
896 [Kg/m³] at a temperature of 5°C
891.6 [Kg/m³] at a temperature of 10°C
881 [Kg/m³] at a temperature of 20°C
Surface tension
24.88 [mN/m] at a temperature of 25°C
25.8 [mN/m] at a temperature of 5.7°C
25.02 [mN/m] at a temperature of 10.6°C
24.83 [mN/m] at a temperature of 18.4°C
Interfacial tension
57 [mN/m] at a temperature of 20°C and salinity of 0‰
Kinematic viscosity
0.83 [cSt] at a temperature of 20°C
0.77 [cSt] at a temperature of 25°C
2.7009 [cSt] at a temperature of 5°C
2.5236 [cSt] at a temperature of 10°C
2.3383 [cSt] at a temperature of 20°C
Hydrosolubility
7000 [mg/l] at a temperature of 20°C and salinity of 0‰
8500 [mg/l] at a temperature of 25°C and salinity of 0‰
7240 [mg/l] at a temperature of 20°C and salinity of 0‰
6970 [mg/l] at a temperature of 20°C and salinity of 5‰
5670 [mg/l] at a temperature of 20°C and salinity of 30‰
Vapour pressure
1160 [Pa] at a temperature of 20°C
1990 [Pa] at a temperature of 25°C
Vapour density 3.7
Flash point (Pensky-Martens closed cup) 22 [°C]
Lower explosivity limit (LEL) 1.3 [%]
Upper explosivity limit (UEL) 7.6 [%]
Vaporization enthalpy
312328 [J/Kg] at a temperature of 126°C
377582 [J/Kg] at a temperature of 25°C
Combustion enthalpy 37700000 [J/Kg]
Specific heat capacity 1961 [J/(Kg·K)]
Combustion efficiency 98 [%]
Mass flow rate of the combustion surface 0.1 [Kg/(m²·s)]
Radiative fraction 23 [%]
Henry's constant 28.8 [mol/(m³·Pa)]


Behaviour Top

Log Kow 1.82
Log Koc 0.35
Hydrolysis (Half-life) 114 days
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) 10 days
Biodegradation in marine environment (Half-life) 10 days
Standard European Behaviour Classification (SEBC) Floater that evaporates and dissolves (FED)
Bioconcentration factor (BCF) 13.1


Ecotoxicity Top

Lowest median lethal concentration (LC50) on algae 2 [mg/l]
Lowest median lethal concentration (LC50) on crustacean 32 [mg/l]
Lowest median lethal concentration (LC50) on fishes 18 [mg/l]
Highest no observed effect concentration (NOEC) on algae 296 [mg/l]
Assessment factor (AF)
1000 on the short-term
10000 on the long-term
Predicted No Effect Concentration (PNEC)
18 [µg/l] on the short-term
1.8 [µg/l] on the long-term


Hazards Top

Flammable
Harmful

Warning

IDLH 1700 [ppm]
Hazards statements
Physical
H226
Flammable liquid and vapour.
Health
H336
May cause drowsiness or dizziness.

Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233
Keep container tightly closed.
P235
Keep cool.
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P312
Call a POISON CENTER or doctor/physician if you feel unwell.
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.


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 0 1 NI FED 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
0 Not irritating No clinical signs and/
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
FED Floater that evaporates and 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

Warning

  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/

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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.