ACETIC ACID (>80 wt% acid)

UN Number: 2789 - CAS Number: 64-19-7

Also known as: ACIDE ACETIQUE (teneur en acide >80% mass.), AZINZUUR, Ethanoic Acid, Ethylic Acid, Methanecarboxylic Acid, Vinegar, Vinegar Acid, Acetic Acid, Acide Acetique
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List


UN number 2789
CAS number 64-19-7
Formula C2H4O2

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
1051 [Kg/m³] at a temperature of 20°C
Kinematic viscosity (cSt)
1.16 [cSt] at a temperature of 20°C
1 [cSt] at a temperature of 25°C
Molar mass (g/mol) 60.05
Density of gas (kg/m3) 2.709
Solubility (g/L)
1050000 [g/L] at a temperature of 20°C and salinity of 0‰
1050000 [g/L] at a temperature of 25°C and salinity of 0‰
Boiling Point (°C) 118.1
Melting Point (°C) 17
Critical molar volume (m³/mol) 0.000171
Critical temperature (°C) 590.7
Critical pressure (Pa) 5780000
Surface tension (mN/m)
27.59 [mN/m] at a temperature of 20°C
27.1 [mN/m] at a temperature of 25°C
Vapour Pressure (Pa)
1599 [Pa] at a temperature of 20°C
2093 [Pa] at a temperature of 25°C
Ignition Temperature (°C) 485
Flash Point (°C) 40
Flash Point (Pensky-Martens closed cup) (°C) 39.4
Flash Point (Cleveland open cup) (°C) 44.4
Lower explosivity limit (LEL) (volume %) 5.4
Upper explosivity limit (UEL) (volume %) 16
Vapor enthalpy (J/Kg)
394670 [J/Kg] at a temperature of 117.9°C
389010 [J/Kg] at a temperature of 25°C
Combus enthalpy (J/Kg) 13100000
Specific heat capacity (J/(Kg·K)) 2053
Combustion efficiency (%) 98
Mass flow rate of the combustion surface (Kg/(m²·s)) 0.03
Rad fraction (%) 23
Henry's constant (mol/(m³·Pa)) 0.01

Behaviour at sea

Log kow 0.17
Log koc 1.02
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Biodegradation in marine environment (Half-life) (days) 10
Bioconcentration factor (BCF) 1

Additional data

Colour colourless
Odour strong vinegar odour
MARPOL pollution category
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.

Transportation data

Transport mode Bulk,Packaged
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
Family name organic acids

Reactivity data

Water No
Abilities Miscible in water.
Acid(s) Yes
Base(s) Yes
Metal(s) and alloys Yes
Oxidizing agents No
Organic substance Yes
Notable risks Reacts violently with strong oxidants and strong bases.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation in BCF (A1B) 0 - No measurable BCF
Bioaccumulation (A1) 0 - No potential to bioaccumulate
Biodegradation (A2) R - Readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 1 - Practically non-toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 1 - Slight
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 1 - Slight
Skin irritation/corrosivity (D1) 1 - Mildly irritating
Eye irritation/corrosivity (D2) 3 - Severely irritating, with irreversible corneal injury
Interference with coastal amenities (E2) D - Dissolver
Effects on wildlife and bottom habitats (E3) 3 - Is highly acutely toxic; and/or is severely irritant or corrosive to skin or eyes; and/or is carcinogenic, mutagenic or reprotoxic; and/or is a floater or persistent floater with associated health effects

Human toxicity threshold

Corrosive Flammable Flammable liquid
IDHL 1000
Hazard statements
H226 Flammable liquid and vapour.
H314 Causes severe skin burns and eye damage.
Precautionary statements
P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P241 Use explosion-proof electrical/ventilating/lighting/.../equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
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.
P501 Dispose of contents/container to ...
ERPG-2 (ppm) 35
ERPG-3 (ppm) 250


Lowest median lethal concentration (LC50) on algae (mg/l) 20
Lowest median lethal concentration (LC50) on crustacean (mg/l) 18.9
Lowest median lethal concentration (LC50) on fishes (mg/l) 43.8
Highest no observed effect concentration (NOEC) on algae (mg/l) 10.6
Highest no observed effect concentration (NOEC) on crustacean (mg/l) 22.7
Highest no observed effect concentration (NOEC) on fishes (mg/l) 34.3
Assessment factor (AF)
100 on the Short term
100 on the Long term
Predicted No Effect Concentration (PNEC) (µg/l)
189 [µg/l] on the Short term
106 [µg/l] on the Long term
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 132

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 8-04


Emergency procedures


Avoid all sources of ignition (e.g. naked lights, unprotected light bulbs, electric handtools).

Spillage on deck

Wash overboard with copious quantities of water.

Spillage under deck

Collect spillage, where practicable, using absorbent material for liquids, for safe disposal.

Fire on deck

Use water spray.

Fire under deck

Batten down; use ship's fixed fire-fighting installation. Otherwise adopt action as for "On deck".

Special equipment to be carried

Protective clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.
Spray nozzles.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2023-01-30T07:11:30+00:00

Tell us something about you