DIPENTENE

UN Number: 2052 - CAS Number: 138-86-3

Also known as: CAJEPUTENE, CINENE
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 2052
CAS number 138-86-3

Physical chemical data

Physical State (20°C) Liquid
Density (kg/m3)
842 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 136.2
Density of gas (kg/m3) 6.321
Boiling Point (°C) 178
Melting Point (°C) -156
Vapour Pressure (Pa)
133 [Pa] at a temperature of 20°C
Ignition Temperature (°C) 237
Flash Point (°C) 45
Lower explosivity limit (LEL) (volume %) 0.7
Upper explosivity limit (UEL) (volume %) 6.1

Behaviour at sea

Persistence (days) 0.8

Additional data

Colour colourless to light yellow
Odour pleasant, lemon odour
Standard behavior classification D, FD, F

Transportation data

Transport mode Bulk,Packaged
Package group III
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
IMO class 3.3

Reactivity data

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 4 - ≥4 and <5
Bioaccumulation (A1) 4 - High potential to bioaccumulate
Biodegradation (A2) NR - Not readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 0 - Negligible
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) 2 - Irritating
Eye irritation/corrosivity (D2) 2 - Irritating
Specific Health Concern (D3) Ss - Skin Sensitization
Interference with coastal amenities (E2) F - Floating substance, not likely to evaporate or to dissolve quickly
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

Ecotoxicity

Incident reports

Incident reports

Year Vessel Location Cargo type
1985 Ariadne Mogadishu, Somalia Package
Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 128

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 3-07

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

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, foam or dry chemical. Do NOT use water jet. 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.

• 2-ETHYLBUTYL ACETATE (UN No. 1177)
Self-contained breathing apparatus not necessary - use goggles for eye protection.

• ISOPROPYL NITRATE (UN No. 1222)
In fire, explosion hazard.

• PINE OIL (UN No. 1272)
Self-contained breathing apparatus not necessary - use goggles for eye protection.

• ZIRCONIUM SUSPENDED IN A FLAMMABLE LIQUID (UN No. 1308)
Spillage is liable to self-ignition. Use water spray from as many hoses as possible from as far away as practicable.

• normal-PROPYL NITRATE (UN No. 1865)
In fire, explosion hazard.

• CYCLOPENTANOL (UN No. 2244)
• normal-UNDECANE (UN No. 2330)
Self-contained breathing apparatus not necessary - use goggles for eye protection.

• 3-BROMOPROPYNE (UN No. 2345)
In fire, explosion hazard. Fight fire from a protected position.

• TETRAMETHYLSILANE (UN No. 2749)
Possible self-ignition at ambient temperatures.

• ELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. (UN No. 3256), with
flashpoint above 61°C c.c., at or above its flashpoint .
Spilled liquid may be very hot and remain above its flashpoint for some time after spillage.

Decision trees

Decision trees

No decision trees available

No additional data

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