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

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Isobutyl Alcohol

Description Top

CAS number 78-83-1
UN number 1212
Chemical formula C4H10O
Standard European Behaviour Classification (SEBC) Dissolves (D)
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
0 R 1 0 0 0 1 2 3 NI D 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
Alcool Isobutylique
Isobutanol
Isopropyl Carbinol
1-Hydroxymethylpropane
2-Methyl-1-Propanol
Isobutyl Alcohol


Physico-chemical properties Top

Chemical formula C4H10O
Molar mass 74.12 [g/mol]
Critical molar volume 0.000274 [m³/mol]
State Liquid at 25°C and 1 atm
Fusion temperature -108 [°C]
Boiling temperature 108 [°C]
Critical temperature 547.8 [°C]
Density
880 [Kg/m³] at a temperature of 20°C
Kinematic viscosity
5 [cSt] at a temperature of 20°C
4.1532 [cSt] at a temperature of 25°C
Hydrosolubility
98000 [mg/l] at a temperature of 20°C and salinity of 0‰
85000 [mg/l] at a temperature of 25°C and salinity of 0‰
Vapour pressure
1173 [Pa] at a temperature of 20°C
1330 [Pa] at a temperature of 25°C
Critical pressure 4295000 [Pa]
Vapour density 2.4
Flash point (Pensky-Martens closed cup) 28 [°C]
Flash point (Cleveland open cup) 32.2 [°C]
Lower explosivity limit (LEL) 1.7 [%]
Upper explosivity limit (UEL) 10.6 [%]
Vaporization enthalpy
524220 [J/Kg] at a temperature of 108°C
685645 [J/Kg] at a temperature of 25°C
Combustion enthalpy 35900000 [J/Kg]
Specific heat capacity 226.88 [J/(Kg·K)]
Combustion efficiency 98 [%]
Mass flow rate of the combustion surface 0.05 [Kg/(m²·s)]
Radiative fraction 22 [%]
Henry's constant 0.99 [mol/(m³·Pa)]


Behaviour Top

Log Kow 0.76
Log Koc 1.75
Hydrolysis (Half-life) Not hydrolysable
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) Dissolves (D)
Bioconcentration factor (BCF) 1.97


Ecotoxicity Top

Lowest median lethal concentration (LC50) on algae 225 [mg/l]
Lowest median lethal concentration (LC50) on crustacean 1100 [mg/l]
Lowest median lethal concentration (LC50) on fishes 1430 [mg/l]
Highest no observed effect concentration (NOEC) on algae 53 [mg/l]
Highest no observed effect concentration (NOEC) on crustacean 20 [mg/l]
Assessment factor (AF)
1000 on the short-term
10000 on the long-term
Predicted No Effect Concentration (PNEC)
225 [µg/l] on the short-term
22.5 [µg/l] on the long-term


Hazards Top

Flammable
Corrosive
Harmful

Danger

IDLH 1600 [ppm]
Hazards statements
Physical
H226
Flammable liquid and vapour.
Health
H315
Causes skin irritation.
H318
Causes serious eye damage.
H335
May cause respiratory irritation.
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.
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.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P303 + P361 + P353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P370 + P378
In case of fire: Use ... for extinction.
Storage
P403 + P235
Store in a well-ventilated place. Keep cool.
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 1 0 0 0 1 2 3 NI D 3

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]
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]
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)
1 Slight 10 < AITE ≤ 20
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
D 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
Corrosive
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

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.