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

External resources

CAMEO Chemical Database
WISER Substance List

Description

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)

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)

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 %)

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 (%)

Mass flow rate of the combustion surface (Kg/(m²·s))

0.03

Rad fraction (%)

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

IDHL

1000

Hazard statements

Physical

H226	Flammable liquid and vapour.

Health

H314	Causes severe skin burns and eye damage.

Precautionary statements

Prevention

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.

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.

Disposal

P501	Dispose of contents/container to ...

TLV-TWA

ERPG-2 (ppm)

ERPG-3 (ppm)

250

Ecotoxicity

Lowest median lethal concentration (LC50) on algae (mg/l)

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

No incident reports available

Emergency Response Guidebook

Guide number: 132

See the guide or download the emergency response guidebook

At sea emergency guide

Emergency schedule: 8-04

CORROSIVE SUBSTANCES, FLAMMABLE, FLASHPOINT 61°C Closed Cup OR BELOW.

Emergency procedures

Action

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

Corrosive Flammable Flammable liquid

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No decision trees available

No additional data