n-BUTANOL

UN Number: 1120 - CAS Number: 71-36-3

Also known as: BUTANOL, 1-BUTANOL, BUTAN-1-OL, n-BUTANOL, 2-BUTYL ALCOHOL, BUTYL ALCOHOL, n-BUTYL ALCOHOL, Normal Primary BUTYL ALCOHOL, BUTYL HYDROXIDE, CC SS 203, N-Butanol, Butyric Alcohol, 1-Hydroxybutane, Propylcarbinol, N-Butyl Alcohol

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	1120
CAS number	71-36-3
Formula	C₄H₁₀O

Physical chemical data

Physical State (20°C)

Liquid

Physical State (25°C)

Liquid

Density (kg/m3)

810 [Kg/m³] at a temperature of 20°C

                                                                
                                                                    821.3 [Kg/m³]
                                                                    at a temperature of
                                                                    5°C

                                                                
                                                                    817.9 [Kg/m³]
                                                                    at a temperature of
                                                                    10°C

                                                                
                                                                    811.6 [Kg/m³]
                                                                    at a temperature of
                                                                    20°C

Kinematic viscosity (cSt)

3.7 [cSt] at a temperature of 20°C

3.1377 [cSt] at a temperature of 25°C

                                                                
                                                                    5.82 [cSt]
                                                                    at a temperature of
                                                                    5°C

                                                                
                                                                    11.97 [cSt]
                                                                    at a temperature of
                                                                    10°C

                                                                
                                                                    4.7807 [cSt]
                                                                    at a temperature of
                                                                    20°C

Molar mass (g/mol)

74.12

Density of gas (kg/m3)

3.29

Solubility (g/L)

77000 [g/L] at a temperature of 20°C and salinity of 0‰

68600 [g/L] at a temperature of 25°C and salinity of 0‰

                                                                
                                                                    72670 [g/L]
                                                                    at a temperature of
                                                                    20°C
                                                                    and salinity of
                                                                    0‰
                                                                
                                                            

                                                                
                                                                    66730 [g/L]
                                                                    at a temperature of
                                                                    20°C
                                                                    and salinity of
                                                                    5‰
                                                                
                                                            

                                                                
                                                                    54260 [g/L]
                                                                    at a temperature of
                                                                    20°C
                                                                    and salinity of
                                                                    30‰
                                                                
                                                            

Boiling Point (°C)

117.7

Melting Point (°C)

-89

Critical molar volume (m³/mol)

0.000274

Critical temperature (°C)

563

Critical pressure (Pa)

4414000

Surface tension (mN/m)

24.6 [mN/m] at a temperature of 20°C

24.93 [mN/m] at a temperature of 25°C

                                                                
                                                                    25.71 [mN/m]
                                                                    at a temperature of
                                                                    3.8°C

                                                                
                                                                    24.9 [mN/m]
                                                                    at a temperature of
                                                                    11.1°C

                                                                
                                                                    24.25 [mN/m]
                                                                    at a temperature of
                                                                    18.4°C

Interfacial tension (mN/m)

50 [mN/m] at a temperature of 25°C and salinity of 0‰

Vapour Pressure (Pa)

626 [Pa] at a temperature of 20°C

893 [Pa] at a temperature of 25°C

Ignition Temperature (°C)

340

Flash Point (°C)

Flash Point (Pensky-Martens closed cup) (°C)

28.9

Flash Point (Cleveland open cup) (°C)

36.1

Lower explosivity limit (LEL) (volume %)

1.4

Upper explosivity limit (UEL) (volume %)

11.2

Vapor enthalpy (J/Kg)

584045 [J/Kg] at a temperature of 117.6°C

706277 [J/Kg] at a temperature of 25°C

Combus enthalpy (J/Kg)

35900000

Specific heat capacity (J/(Kg·K))

2390.7

Combustion efficiency (%)

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

0.05

Rad fraction (%)

Henry's constant (mol/(m³·Pa))

0.89

Behaviour at sea

Log kow	0.88
Log koc	1.85
Aqueous photolysis (Half-life)	4.09
Biodegradation in estuary environment (Half-life) (days)	Not hydrolysable
Biodegradation in marine environment (Half-life) (days)	10
Bioconcentration factor (BCF)	2.72

Additional data

Colour

colourless

Odour

alcohol 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

Package group	III
Cargo group	20
State	liquid
Temperature (°C)	ambient
Pressure (Pa)	ambient
Family name	alcohols, glycols
IMO class	3.3

Reactivity data

Water	No
Acid(s)	Yes
Base(s)	Yes
Metal(s) and alloys	No
Static electricity	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))	2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	2 - Moderate
Skin irritation/corrosivity (D1)	1 - Mildly irritating
Eye irritation/corrosivity (D2)	1 - Mildly irritating
Interference with coastal amenities (E2)	ED - Evaporator/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

8000

Hazard statements

Physical

H226	Flammable liquid and vapour.

Health

H302	Harmful if swallowed.
H315	Causes skin irritation.
H318	Causes serious eye damage.
H335	May cause respiratory irritation.
H336	May cause drowsiness or dizziness.

Precautionary statements

Prevention

P210	Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233	Keep container tightly closed.
P240	Ground/bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/lighting/.../equipment.
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.
P370 + P378	In case of fire: Use ... for extinction.

Storage

P403 + P235

Store in a well-ventilated place. Keep cool.

Disposal

P501	Dispose of contents/container to ...

TLV-TWA

TEEL-1 (mg/m3)

50 ppm

TEEL-2 (mg/m3)

50 ppm

TEEL-3 (mg/m3)

1400 ppm

Ecotoxicity

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

225

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

1328

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

1376

Highest no observed effect concentration (NOEC) on algae (mg/l)

129

Highest no observed effect concentration (NOEC) on crustacean (mg/l)

Assessment factor (AF)

1000 on the Short term

1000 on the Long term

Predicted No Effect Concentration (PNEC) (µg/l)

225 [µg/l] on the Short term

20 [µg/l] on the Long term

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 129

See the guide or download the emergency response guidebook

At sea emergency guide

Emergency schedule: 3-06

1 CLASS 3.1
FLAMMABLE LIQUIDS, FLASHPOINT BELOW -18°C Closed Cup., NOT COVERED BY OTHER SCHEDULES; MISCIBLE WITH WATER*
2 CLASS 3.2
FLAMMABLE LIQUIDS, FLASHPOINT BETWEEN -18°C AND 23°C Closed Cup., NOT COVERED BY OTHER SCHEDULES; MISCIBLE WITH WATER*
3 CLASS 3.3
FLAMMABLE LIQUIDS, FLASHPOINT BETWEEN 23°C AND 61°C Closed Cup., NOT COVERED BY OTHER SCHEDULES; MISCIBLE WITH WATER*

* Includes substances which are partially miscible with water and substances immiscible but reacting with water for which the use of foam may be ineffective.

Emergency procedures

Action

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

Spillage on deck

Wash spillage overboard with copious quantities of water.

Spillage under deck

Provide adequate ventilation. Collect spillage, where practicable, using absorbent material, for safe disposal.

Fire on deck

Use water spray or dry chemical. Do NOT use water jet or foam. If possible remove receptacles likely to be involved or keep them cool with copious quantities of water.

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 gloves and boots.
Self-contained breathing apparatus.
Spray nozzles.

Remarks by UN no.

ETHYLENE GLYCOL MONOETHYL ETHER ACETATE (UN No. 1172)
ETHYLENE GLYCOL MONOMETHYL ETHER ACETATE (UN No. 1189)
Self-contained breathing apparatus not necessary - use goggles for eye protection.

NITROGLYCERIN SOLUTION IN ALCOHOL (UN No. 1204), with not more than 1%
of nitroglycerin.
Water may separate the nitroglycerin from the spillage; this nitroglycerin becomes very sensitive to shock and heat. If spillage under deck, keep it under water and seek advice for safe disposal from the shipper.

NITROMETHANE (UN No. 1261)
In fire, explosion hazard.

2-ETHYLBUTANOL (UN No. 2275)
AMYL BUTYRATES (UN No. 2620)
Self-contained breathing apparatus not necessary - use goggles for eye protection.

NITROGLYCERIN SOLUTION IN ALCOHOL (UN No. 3064), with more than 1% but
not more than 5% nitroglycerin.
Water may separate the nitroglycerin from the spillage; this nitroglycerin becomes very sensitive to shock and heat. If spillage under deck, keep it under water and seek advice for safe disposal from the shipper.

Decision trees

Corrosive Flammable

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No decision trees available

No additional data