n-BUTYRIC ACID

UN Number: 2820 - CAS Number: 107-92-6

Also known as: ACIDE BUTYRIQUE, BUTANOIC ACID

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	2820
CAS number	107-92-6

Physical chemical data

Physical State (20°C)

Liquid

Density (kg/m3)

958 [Kg/m³] at a temperature of 20°C

Molar mass (g/mol)

88.1

Density of gas (kg/m3)

3.6

Boiling Point (°C)

164

Vapour Pressure (Pa)

57 [Pa] at a temperature of 20°C

Upper explosivity limit (UEL) (volume %)

Behaviour at sea

Additional data

Colour	colourless
Odour	rancid, butter odour

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	No
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))	2 - Slightly toxic
Chronic aquatic toxicity (B2) (NOEC (mg/l))	0 - Negligible
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	0 - Negligible
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

TEEL-1 (mg/m3)	40 ppm
TEEL-2 (mg/m3)	250 ppm
TEEL-3 (mg/m3)	250 ppm

Ecotoxicity

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 153

See the guide or download the emergency response guidebook

At sea emergency guide

Emergency schedule: 8-05

CORROSIVE SUBSTANCES, COMBUSTIBLE.

Emergency procedures

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.

Remarks by UN no.

FORMIC ACID (UN No. 1779)
THIOGLYCOLIC ACID (UN No. 1940)
BOMBS, SMOKE, NON-EXPLOSIVE (UN No. 2028)
N,N-DIMETHYLCARBAMOYL CHLORIDE (UN No. 2262)
DICYCLOHEXYLAMINE (UN No. 2565)
Turn ship off-wind.

Decision trees

No decision trees available

No additional data