DICHLOROMETHANE

UN Number: 1593 - CAS Number: 75-09-2

Also known as: AEROTHANE MM (T), DCM, Dichloromethane, Methylene Dichloride, Methane Dichloride, Methylene Bichloride, Methylene Chloride
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 1593
CAS number 75-09-2
Formula CH2Cl2

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
1322 [Kg/m³] at a temperature of 20°C
Kinematic viscosity (cSt)
0.32 [cSt] at a temperature of 20°C
0.31132 [cSt] at a temperature of 25°C
Molar mass (g/mol) 84.93
Density of gas (kg/m3) 3.741
Solubility (g/L)
20000 [g/L] at a temperature of 20°C and salinity of 0‰
16700 [g/L] at a temperature of 25°C and salinity of 0‰
Boiling Point (°C) 40
Melting Point (°C) -97
Critical temperature (°C) 510
Critical pressure (Pa) 6100000
Surface tension (mN/m)
28.33 [mN/m] at a temperature of 20°C
27.2 [mN/m] at a temperature of 25°C
Vapour Pressure (Pa)
47000 [Pa] at a temperature of 20°C
58200 [Pa] at a temperature of 25°C
Ignition Temperature (°C) 665
Lower explosivity limit (LEL) (volume %) 12
Upper explosivity limit (UEL) (volume %) 19
Vapor enthalpy (J/Kg)
330390 [J/Kg] at a temperature of 40°C
339338 [J/Kg] at a temperature of 25°C
Combus enthalpy (J/Kg) 6050000
Specific heat capacity (J/(Kg·K)) 1191.6
Combustion efficiency (%) 33
Mass flow rate of the combustion surface (Kg/(m²·s)) 0.03
Rad fraction (%) 40
Henry's constant (mol/(m³·Pa)) 206

Behaviour at sea

Log kow 1.3
Log koc 1.4
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Biodegradation in marine environment (Half-life) (days) Not biodegradable
Bioconcentration factor (BCF) 40

Additional data

Colour colourless
Odour sweet, pleasant 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 SD

Transportation data

Package group III
Cargo group 36
State liquid
Family name halogenated hydrocarb
IMO class 6.1

Reactivity data

Notable risks On combustion, forms toxic and corrosive fumes Reacts with alkalis.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 1 - ≥1 and <2
Bioaccumulation in BCF (A1B) 2 - ≥10 and <100
Bioaccumulation (A1) 2 - Low potential to bioaccumulate
Biodegradation (A2) NR - Not 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)) 1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 0 - Negligible
Skin irritation/corrosivity (D1) 2 - Irritating
Eye irritation/corrosivity (D2) 2 - Irritating
Specific Health Concern (D3) C - Carcinogenicity
Interference with coastal amenities (E2) SD - Sinker/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

Health Hazard
IDHL 5000
Hazard statements
Health
H351 Suspected of causing cancer.
Precautionary statements
Prevention
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P281 Use personal protective equipment as required.
Response
P308 + P313 IF exposed or concerned: Get medical advice/attention.
Storage
P405 Store locked up.
Disposal
P501 Dispose of contents/container to ...
TLV-TWA 500
ERPG-1 (ppm) 300
ERPG-2 (ppm) 750
ERPG-3 (ppm) 4000

Ecotoxicity

Lowest median lethal concentration (LC50) on algae (mg/l) 500
Lowest median lethal concentration (LC50) on crustacean (mg/l) 108.5
Lowest median lethal concentration (LC50) on fishes (mg/l) 97
Highest no observed effect concentration (NOEC) on algae (mg/l) 550
Highest no observed effect concentration (NOEC) on fishes (mg/l) 82.5
Assessment factor (AF)
50 on the Short term
50 on the Long term
Predicted No Effect Concentration (PNEC) (µg/l)
1940 [µg/l] on the Short term
1650 [µg/l] on the Long term
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 160

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 6.1-02

TOXIC LIQUIDS, INCLUDING SUBSTANCES WHICH MAY LIQUEFY DURING TRANSPORT, NOT COVERED BY OTHER SCHEDULES.

Emergency procedures

Action

Turn ship off-wind.

Spillage on deck

Collect spillage, where practicable, using absorbent material for safe disposal. Wash remainder 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 copious quantities of water or other media to fight fire. 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 clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.

Remarks by UN no.

• METHYLBROMOACETONE
• METHYL BROMIDE AND ETHYLENE DIBROMIDE MIXTURE, liquid (UN No. 1647)
• TEAR GAS SUBSTANCE, LIQUID, N.O.S. (UN No. 1693)
Spillage may be gaseous.

• CHLOROACETYL CHLORIDE (UN No. 1752)
Water-reactive; use water from as far away as practicable.

• AMMUNITION, TEAR-PRODUCING, NON-EXPLOSIVE, with neither burster nor
expelling charge, non-fuzed.
• METAL CARBONYLS, N.O.S. (UN No. 3281).
Spillage may be gaseous.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:42+00:00