PROPIONIC ACID solution (with >80% acid)

UN Number: 1848 - CAS Number: 598-78-7

Also known as: ACIDE PROPIONIQUE en solution (avec plus de 80% d'acide), Propanoic Acid, Methylacetic Acid, Ethanecarboxylic Acid, Ethylformic Acid, Carboxyethane, Propionic Acid, Acide Propionique
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List


UN number 1848
CAS number 598-78-7
Formula C3H6O2

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
995 [Kg/m³] at a temperature of 20°C
988.2 [Kg/m³] at a temperature of 25°C
Kinematic viscosity (cSt)
1.03 [cSt] at a temperature of 25°C
Molar mass (g/mol) 74.08
Density of gas (kg/m3) 3.302
Solubility (g/L)
100000 [g/L] at a temperature of 25°C and salinity of 0‰
Boiling Point (°C) 141
Melting Point (°C) -22
Critical molar volume (m³/mol) 0.000233
Critical temperature (°C) 598.5
Critical pressure (Pa) 4670000
Surface tension (mN/m)
26.2 [mN/m] at a temperature of 25°C
Vapour Pressure (Pa)
1291 [Pa] at a temperature of 20°C
470 [Pa] at a temperature of 25°C
Ignition Temperature (°C) 485
Flash Point (°C) 50
Flash Point (Pensky-Martens closed cup) (°C) 52
Flash Point (Cleveland open cup) (°C) 57
Lower explosivity limit (LEL) (volume %) 2.9
Upper explosivity limit (UEL) (volume %) 14.8
Vapor enthalpy (J/Kg)
433861 [J/Kg] at a temperature of 25°C
Combus enthalpy (J/Kg) 20630678
Specific heat capacity (J/(Kg·K)) 2063
Henry's constant (mol/(m³·Pa)) 0.045

Behaviour at sea

Log kow 0.3
Log koc 0.16
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Bioconcentration factor (BCF) 3.2

Additional data

Colour colourless
Odour sharp, rancid odour
MARPOL pollution category
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.

Transportation data

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

Reactivity data

Water No
Acid(s) Yes
Base(s) Yes
Metal(s) and alloys Yes
Oxidizing agents Yes
Reducing agents No
Combustibles No
Organic substance Yes

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
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)) 3 - Moderately high
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 2 - Moderate
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 liquid
Hazard statements
H314 Causes severe skin burns and eye damage.
Precautionary statements
P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
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.
P403 + P235 Store in a well-ventilated place. Keep cool.
TEEL-1 (mg/m3) 10 ppm
TEEL-2 (mg/m3) 15 ppm
TEEL-3 (mg/m3) 350 ppm


Lowest median lethal concentration (LC50) on crustacean (mg/l) 50
Lowest median lethal concentration (LC50) on fishes (mg/l) 51
Highest no observed effect concentration (NOEC) on fishes (mg/l) 188
Assessment factor (AF)
10000 on the Short term
Predicted No Effect Concentration (PNEC) (µg/l)
50 [µg/l] on the Short term
Incident reports

Incident reports

Year Vessel Location Cargo type
1975 - Swedish Coastline Package
Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 153

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 2023-01-30T09:52:04+00:00

Tell us something about you