METHANOL

UN Number: 1230 - CAS Number: 67-56-1

Also known as: COLONIAL SPIRIT, COLUMBIAN SPIRIT, Methylalcohol, Carbinol, Methanol

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	1230
CAS number	67-56-1
Formula	CH₄O

Physical chemical data

Physical State (20°C)

Liquid

Physical State (25°C)

Liquid

Density (kg/m3)

792 [Kg/m³] at a temperature of 20°C

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

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

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

Kinematic viscosity (cSt)

0.776 [cSt] at a temperature of 20°C

0.68739 [cSt] at a temperature of 25°C

                                                                
                                                                    2.4209 [cSt]
                                                                    at a temperature of
                                                                    5°C

                                                                
                                                                    2.2339 [cSt]
                                                                    at a temperature of
                                                                    10°C

                                                                
                                                                    2.0171 [cSt]
                                                                    at a temperature of
                                                                    20°C

Molar mass (g/mol)

32.04

Density of gas (kg/m3)

1.419

Solubility (g/L)

10000000 [g/L] at a temperature of 20°C and salinity of 0‰

Boiling Point (°C)

64.7

Melting Point (°C)

-98

Critical molar volume (m³/mol)

0.000117

Critical temperature (°C)

512.5

Critical pressure (Pa)

8084000

Surface tension (mN/m)

22.5 [mN/m] at a temperature of 20°C

20.14 [mN/m] at a temperature of 25°C

                                                                
                                                                    23.88 [mN/m]
                                                                    at a temperature of
                                                                    4.1°C

                                                                
                                                                    23.06 [mN/m]
                                                                    at a temperature of
                                                                    10.1°C

                                                                
                                                                    22.67 [mN/m]
                                                                    at a temperature of
                                                                    18.1°C

Vapour Pressure (Pa)

12865 [Pa] at a temperature of 20°C

Ignition Temperature (°C)

455

Flash Point (°C)

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

Flash Point (Cleveland open cup) (°C)

15.6

Lower explosivity limit (LEL) (volume %)

5.5

Upper explosivity limit (UEL) (volume %)

36.5

Vapor enthalpy (J/Kg)

1098870 [J/Kg] at a temperature of 64.6°C

1168154 [J/Kg] at a temperature of 25°C

Combus enthalpy (J/Kg)

22660882

Specific heat capacity (J/(Kg·K))

2531

Henry's constant (mol/(m³·Pa))

0.46

Behaviour at sea

Log kow	-0.77
Log koc	0
Aqueous photolysis (Half-life)	Not photolysable
Biodegradation in estuary environment (Half-life) (days)	Not hydrolysable
Bioconcentration factor (BCF)	10

Additional data

Colour

colourless

Odour

alcohol 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.

Standard behavior classification

Transportation data

Package group	II
Cargo group	20
State	liquid
Temperature (°C)	ambient
Pressure (Pa)	ambient
Family name	alcohols, glycols
IMO class	3.2

Reactivity data

Abilities	Miscible in water.
Acid(s)	Yes
Base(s)	Yes
Static electricity	Yes
Oxidizing agents	Yes
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))	0 - Non-toxic
Chronic aquatic toxicity (B2) (NOEC (mg/l))	0 - Negligible
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	2 - Moderate
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	2 - Moderate
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	2 - Moderate
Skin irritation/corrosivity (D1)	2 - Irritating
Eye irritation/corrosivity (D2)	2 - Irritating
Specific Health Concern (D3)	T - Specific Target Organ Toxicity following single or repeated exposure
Interference with coastal amenities (E2)	DE - Dissolver/Evaporator
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

25000

Hazard statements

Physical

H225	Highly flammable liquid and vapour.

Health

H301	Toxic if swallowed.
H311	Toxic in contact with skin.
H331	Toxic if inhaled.
H370	Causes damage to organs.

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.
P242	Use only non-sparking tools.
P243	Take precautionary measures against static discharge.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P270	Do no eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P280	Wear protective gloves/protective clothing/eye protection/face protection.

Response

P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P302 + P352	IF ON SKIN: Wash with plenty of soap and water.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304 + P340	IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P361	Remove/Take off immediately all contaminated clothing.
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

200

ERPG-1 (ppm)

200

ERPG-2 (ppm)

1000

ERPG-3 (ppm)

5000

Ecotoxicity

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

1700

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

11.5

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

530

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

6.7

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

0.04

Assessment factor (AF)

100 on the Short term

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

2080 [µg/l] on the Short term

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 131

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

Flammable Toxic

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No decision trees available

No additional data