Tetrachloroethylene

Description Top

CAS number	127-18-4
UN number	1897
Chemical formula	C₂Cl₄
Standard European Behaviour Classification (SEBC)	Sinker (S)

GESAMP Hazard profile

A1	A2	B1	B2	C1	C2	C3	D1	D2	D3	E1	E2	E3
2	NR	3	2	0	0	0	2	1	C	NI	S	3

Marine pollution Classification (MARPOL Annex II)

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.

Alternate names for this chemical

Ethylene Tetrachloride
Pce
Perc
Perchlor
Perchlorethylene
Perchloroethylene
Perk
Tetrachloroethene
Tetrachlorethylene
1,1,2,2-Tetrachloroethylene
Tetrachloroethylene

Physico-chemical properties Top

Chemical formula

C₂Cl₄

Molar mass

165.83 [g/mol]

State

Liquid at 25°C and 1 atm

Fusion temperature

-22 [°C]

Boiling temperature

121.2 [°C]

Density

1620 [Kg/m³] at a temperature of 20°C

Surface tension

32.1 [mN/m] at a temperature of 20°C

Interfacial tension

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

Kinematic viscosity

0.54 [cSt] at a temperature of 20°C

0.52 [cSt] at a temperature of 25°C

Hydrosolubility

149 [mg/l] at a temperature of 20°C and salinity of 0‰

209 [mg/l] at a temperature of 25°C and salinity of 0‰

Vapour pressure

1900 [Pa] at a temperature of 20°C

2481 [Pa] at a temperature of 25°C

Vapour density

5.3

Vaporization enthalpy

209105 [J/Kg] at a temperature of 121.2°C

23952 [J/Kg] at a temperature of 25°C

Combustion enthalpy

4440000 [J/Kg]

Specific heat capacity

864.64 [J/(Kg·K)]

Combustion efficiency

50 [%]

Mass flow rate of the combustion surface

0.03 [Kg/(m²·s)]

Radiative fraction

40 [%]

Henry's constant

2114 [mol/(m³·Pa)]

Behaviour Top

Log Kow	2.53
Log Koc	1.98
Hydrolysis (Half-life)	270 days
Aqueous photolysis (Half-life)	Not photolysable
Biodegradation in estuary environment (Half-life)	Not biodegradable
Biodegradation in marine environment (Half-life)	Not biodegradable
Standard European Behaviour Classification (SEBC)	Sinker (S)
Bioconcentration factor (BCF)	103

Ecotoxicity Top

Lowest median lethal concentration (LC₅₀) on algae

3.64 [mg/l]

Lowest median lethal concentration (LC₅₀) on crustacean

8.5 [mg/l]

Lowest median lethal concentration (LC₅₀) on fishes

5 [mg/l]

Highest no observed effect concentration (NOEC) on algae

1.77 [mg/l]

Highest no observed effect concentration (NOEC) on crustacean

0.51 [mg/l]

Highest no observed effect concentration (NOEC) on fishes

1.99 [mg/l]

Assessment factor (AF)

100 on the short-term

100 on the long-term

Predicted No Effect Concentration (PNEC)

36.4 [µg/l] on the short-term

5.1 [µg/l] on the long-term

Hazards Top

Warning

IDLH

150 [ppm]

Hazards statements

Health

H335

May cause respiratory irritation.

Environmental

H411

Toxic to aquatic life with long lasting effects.

Precautionary statements

Prevention

P202

Do not handle until all safety precautions have been read and understood.

P273

Avoid release to the environment.

P281

Use personal protective equipment as required.

Response

P391

Collect spillage.

P308 + P313

IF exposed or concerned: Get medical advice/attention.

Storage

P405

Store locked up.

Disposal

P501

Dispose of contents/container to ...

GESAMP Top

More information on GESAMP Hazard Evaluation Procedure

GESAMP Hazard profile

A1	A2	B1	B2	C1	C2	C3	D1	D2	D3	E1	E2	E3
2	NR	3	2	0	0	0	2	1	C	NI	S	3

A1: Bioaccumulation

Rating	Description
2	Low potential to bioaccumulate

A1a:

Rating	Description	Criteria [mg/l]
3	Moderate potential to bioaccumulate	3 ≤ Log Kow < 4

A1b:

Rating	Description	Criteria
2	Low potential to bioaccumulate	10 ≤ BCF < 100

A2: Biodegradation

Rating	Description
NR	Not readily biodegradable

B1: Acute aquatic toxicity

Rating	Description	Criteria [mg/l]
3	Moderately toxic	1 < LC/EC/IC₅₀ ≤ 10

B2: Chronic aquatic toxicity

Rating	Description	Criteria [mg/l]
2	Moderate	0.01 < NOEC ≤ 0.1

C1: Acute oral toxicity

Rating	Description	Criteria [mg/Kg]
0	Negligible	AOTE > 2000

C2: Acute dermal toxicity (skin contact)

Rating	Description	Criteria [mg/Kg]
0	Negligible	ADTE > 2000

C3: Acute inhalation toxicity

Rating	Description	Criteria [mg/l] (4 hours exposure)
0	Negligible	AITE > 20

D1: Skin irritation or corrosion

Rating	Description	Sign	GHS category
2	Irritating	Marked erythema, Obvio	Irritant Category 2

D2: Eye irritation

Rating	Description	Sign	GHS category
1	Mildly irritating	Mild conjunctival hype	Irritant Category 2B

D3: Long-term health effects

Notation	Hazard endpoint	Description	GHS category
C	Carcinogenicity	Chemicals which have been shown to induce or increase the incidence of cancer	Category 1 for Carcinogens

E1: Tainting of seafood

Rating	Description
NI	No Information

E2: Behaviour of chemicals in the marine environment

Rating	Description
S	Sinker

E3: Interference with the use of coastal amenities

Rating	Interference	Description	Interpretation	Warning
3	Highly objectionable	1 is highly acutely toxic; and/or 2 is severely irritant or corrosive to skin or eyes; and/or 3 is carcinogenic, mutagenic or reprotoxic; and/or 4 is a floater or persistent floater with associated health effects	1 C1 and/or C2 and/or C3 = 4; and/or 2 D1 or D2 = 3, 3A, 3B, or 3C; and/or 3 D3 contains C, M or R; and/or 4 E2 = F or Fp and D3 contains Ss, Sr, T, A, N, or I	Warning issued leading to the closure of amenities

GHS Security Information

Warning

Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)

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Tetrachloroethylene

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