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

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Methyl Isobutyl Ketone

Description Top

CAS number 108-10-1
UN number 1245
Chemical formula C6H12O
Standard European Behaviour Classification (SEBC) Floater that evaporates and dissolves (FED)
Notable risks Reacts with oxidizers.
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
1 R 1 0 1 0 2 2 3 NI FED 3

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
Hexanone
Hexone
Isobutyl Methyl Ketone
Isopropylacetone
4-Methyl-2-Oxopentane
2-Methyl-4-Pentanone
4-Methyl-2-Pentanone
2-Methylpropyl Methyl Ketone
Mibk
Methyl Isobutyl Cetone
Mic
Methyl Isobutyl Ketone


Physico-chemical properties Top

Chemical formula C6H12O
Molar mass 100.16 [g/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -84 [°C]
Boiling temperature 116.2 [°C]
Critical temperature 574.6 [°C]
Density
800 [Kg/m³] at a temperature of 20°C
814.5 [Kg/m³] at a temperature of 5°C
810.2 [Kg/m³] at a temperature of 10°C
803.1 [Kg/m³] at a temperature of 20°C
Surface tension
23.6 [mN/m] at a temperature of 20°C
24.47 [mN/m] at a temperature of 5.1°C
23.73 [mN/m] at a temperature of 11.8°C
23.61 [mN/m] at a temperature of 18.2°C
Kinematic viscosity
0.76 [cSt] at a temperature of 20°C
0.68424 [cSt] at a temperature of 25°C
2.3327 [cSt] at a temperature of 5°C
2.8511 [cSt] at a temperature of 10°C
2.2164 [cSt] at a temperature of 20°C
Hydrosolubility
18000 [mg/l] at a temperature of 20°C and salinity of 0‰
Vapour pressure
2100 [Pa] at a temperature of 20°C
2640 [Pa] at a temperature of 25°C
Critical pressure 3270000 [Pa]
Vapour density 3.3
Flash point (Pensky-Martens closed cup) 13 [°C]
Flash point (Cleveland open cup) 23 [°C]
Lower explosivity limit (LEL) 1.2 [%]
Upper explosivity limit (UEL) 8 [%]
Vaporization enthalpy
342299 [J/Kg] at a temperature of 116.2°C
403037 [J/Kg] at a temperature of 25°C
Combustion enthalpy 34700000 [J/Kg]
Specific heat capacity 2116.9 [J/(Kg·K)]
Combustion efficiency 96 [%]
Mass flow rate of the combustion surface 0.06 [Kg/(m²·s)]
Radiative fraction 23 [%]
Henry's constant 14 [mol/(m³·Pa)]


Behaviour Top

Log Kow 1.38
Log Koc 2.1
Hydrolysis (Half-life) Not hydrolysable
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) 15 days
Biodegradation in marine environment (Half-life) 50 days
Standard European Behaviour Classification (SEBC) Floater that evaporates and dissolves (FED)
Bioconcentration factor (BCF) 6


Ecotoxicity Top

Lowest median lethal concentration (LC50) on algae 2000 [mg/l]
Lowest median lethal concentration (LC50) on crustacean 1230 [mg/l]
Lowest median lethal concentration (LC50) on fishes 505 [mg/l]
Highest no observed effect concentration (NOEC) on crustacean 7.8 [mg/l]
Highest no observed effect concentration (NOEC) on fishes 57 [mg/l]
Assessment factor (AF)
500 on the long-term
Predicted No Effect Concentration (PNEC)
15.6 [µg/l] on the long-term


Hazards Top

Flammable
Harmful

Danger

IDLH 500 [ppm]
Hazards statements
Physical
H225
Highly flammable liquid and vapour.
Health
H319
Causes serious eye irritation.
H332
Harmful if inhaled.
H335
May cause respiratory irritation.

Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P261
Avoid breathing dust/fume/gas/mist/vapours/spray.
Response
P305 + P351 + P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.


GESAMP Top

GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
1 R 1 0 1 0 2 2 3 NI FED 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]
1 Practically non-toxic 100 < LC/EC/IC50 ≤ 1000
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]
0 Negligible ADTE > 2000
C3: Acute inhalation toxicity
Rating Description Criteria [mg/l] (4 hours exposure)
2 Moderate 2 < AITE ≤ 10
D1: Skin irritation or corrosion
Rating Description Sign GHS category
2 Irritating Marked erythema, Obvio Irritant Category 2
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
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
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

Flammable
Harmful

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

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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.