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

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Formic Acid

Description Top

CAS number 64-18-6
UN number 1779
Chemical formula CH2O2
Standard European Behaviour Classification (SEBC) Dissolves (D)
Abilities Miscible in water.
GESAMP Hazard profile
A1 A2 B1 B2 C1 C2 C3 D1 D2 D3 E1 E2 E3
0 R 2 NI 1 1 2 3C 3 NI D 3

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
Methanoic Acid
Formilic Acid
Aminic Acid
Formic Acid
Acide Formique


Physico-chemical properties Top

Chemical formula CH2O2
Molar mass 46.026 [g/mol]
State Liquid at 25°C and 1 atm
Fusion temperature 8.3 [°C]
Boiling temperature 101 [°C]
Critical temperature 588 [°C]
Density
1220 [Kg/m³] at a temperature of 20°C
Surface tension
34.38 [mN/m] at a temperature of 25°C
Interfacial tension
1.32 [mN/m] at a temperature of 25°C and salinity of 0‰
Kinematic viscosity
1.3172 [cSt] at a temperature of 25°C
Hydrosolubility
1000000 [mg/l] at a temperature of 25°C and salinity of 0‰
Vapour pressure
4666 [Pa] at a temperature of 20°C
Vapour density 1.6
Flash point (Pensky-Martens closed cup) 69 [°C]
Flash point (Cleveland open cup) 50 [°C]
Lower explosivity limit (LEL) 18 [%]
Upper explosivity limit (UEL) 57 [%]
Vaporization enthalpy
492982 [J/Kg] at a temperature of 101°C
436710 [J/Kg] at a temperature of 25°C
Combustion enthalpy 5531656 [J/Kg]
Specific heat capacity 2151 [J/(Kg·K)]
Henry's constant 0.017 [mol/(m³·Pa)]


Behaviour Top

Log Kow -0.22
Log Koc 0
Hydrolysis (Half-life) Not hydrolysable
Aqueous photolysis (Half-life) Not photolysable
Standard European Behaviour Classification (SEBC) Dissolves (D)
Bioconcentration factor (BCF) 3.2


Ecotoxicity Top

Lowest median lethal concentration (LC50) on crustacean 34 [mg/l]
Lowest median lethal concentration (LC50) on fishes 46 [mg/l]
Assessment factor (AF)
500 on the short-term
Predicted No Effect Concentration (PNEC)
200 [µg/l] on the short-term


Hazards Top

Flammable
Corrosive
Toxic

Danger

Hazards statements
Physical
H226
Flammable liquid and vapour.
Health
H302
Harmful if swallowed.
H314
Causes severe skin burns and eye damage.
H331
Toxic if inhaled.

Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
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.
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
0 R 2 NI 1 1 2 3C 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]
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]
1 Slight 300 < AOTE ≤ 2000
C2: Acute dermal toxicity (skin contact)
Rating Description Criteria [mg/Kg]
1 Slight 1000 < 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
3C Corrosive Full-thickness skin ne Corrosive Category 1A
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
Toxic

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.