N,N'-DIMETHYLFORMAMIDE

UN Number: 2265 - CAS Number: 68-12-2

Also known as: N,N-DIMETHYLFORMAMIDE, DIMETHYL FORMAMIDE, DMF, DMFA, Dimethylformamide
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 2265
CAS number 68-12-2
Formula C3H7NO

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
950 [Kg/m³] at a temperature of 20°C
944.5 [Kg/m³] at a temperature of 25°C
Kinematic viscosity (cSt)
0.85 [cSt] at a temperature of 25°C
Molar mass (g/mol) 73.09
Density of gas (kg/m3) 3.225
Solubility (g/L)
10000000 [g/L] at a temperature of 20°C and salinity of 0‰
Boiling Point (°C) 153
Melting Point (°C) -61
Critical molar volume (m³/mol) 0.000262
Critical temperature (°C) 649.6
Critical pressure (Pa) 4480000
Surface tension (mN/m)
36.42 [mN/m] at a temperature of 20°C
Vapour Pressure (Pa)
500 [Pa] at a temperature of 20°C
516 [Pa] at a temperature of 25°C
Ignition Temperature (°C) 440
Flash Point (°C) 58
Flash Point (Pensky-Martens closed cup) (°C) 58
Flash Point (Cleveland open cup) (°C) 67
Lower explosivity limit (LEL) (volume %) 2.2
Upper explosivity limit (UEL) (volume %) 15.2
Vapor enthalpy (J/Kg)
641503 [J/Kg] at a temperature of 25°C
Specific heat capacity (J/(Kg·K)) 2060
Henry's constant (mol/(m³·Pa)) 0.00747

Behaviour at sea

Log kow -0.87
Log koc 0
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Bioconcentration factor (BCF) 0.3

Additional data

Colour colourless
Odour weak ammonia 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

Package group III
Cargo group 10
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
Family name amides
IMO class 3.3

Reactivity data

Abilities Miscible in water.
Acid(s) Yes
Base(s) 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 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
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)) 1 - Slight
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 2 - Moderate
Skin irritation/corrosivity (D1) 1 - Mildly irritating
Eye irritation/corrosivity (D2) 2 - Irritating
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

Flammable Harmful Health Hazard
IDHL 3500
Hazard statements
Physical
H226 Flammable liquid and vapour.
Health
H312 Harmful in contact with skin.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
H360 May damage fertility or the unborn child.
Precautionary statements
Prevention
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response
P302 + P352 IF ON SKIN: Wash with plenty of soap and water.
P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P313 IF exposed or concerned: Get medical advice/attention.
TLV-TWA 10
ERPG-2 (ppm) 100
ERPG-3 (ppm) 200

Ecotoxicity

Lowest median lethal concentration (LC50) on algae (mg/l) > 1000
Lowest median lethal concentration (LC50) on crustacean (mg/l) > 100
Lowest median lethal concentration (LC50) on fishes (mg/l) 1430
Highest no observed effect concentration (NOEC) on crustacean (mg/l) 1140
Assessment factor (AF)
50 on the Short term
Predicted No Effect Concentration (PNEC) (µg/l)
22800 [µg/l] on the Short term
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 129

See the guide or download the emergency response guidebook

At sea emergency guide

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

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:22+00:00