NITROMETHANE

UN Number: 1261

Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 1261

Physical chemical data

Physical State (20°C) Liquid
Density (kg/m3)
1139 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 61.04
Density of gas (kg/m3) 2.709
Boiling Point (°C) 101.4
Melting Point (°C) -29
Vapour Pressure (Pa)
3600 [Pa] at a temperature of 20°C
Ignition Temperature (°C) 415
Flash Point (°C) 36
Lower explosivity limit (LEL) (volume %) 7.3

Behaviour at sea

Additional data

Colour colourless
Odour strong odour

Transportation data

Package group II
Cargo group 43
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
Family name miscell. water solut.
IMO class 3.3

Reactivity data

Water No
Acid(s) Yes
Base(s) No
Metal(s) and alloys No
Oxidizing agents Yes
Reducing agents No
Combustibles No
Organic substance Yes

GESAMP Hazard profile

Human toxicity threshold

IDHL 1000
TLV-TWA 100
TEEL-1 (mg/m3) 60 ppm
TEEL-2 (mg/m3) 750 ppm
TEEL-3 (mg/m3) 750 ppm

Ecotoxicity

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: 3-02

• 1 CLASS 3.1
FLAMMABLE LIQUIDS, FLASHPOINT BELOW -18 °C Closed Cup., TOXIC AND/OR CORROSIVE; MISCIBLE WITH WATER*
• 2 CLASS 3.2
FLAMMABLE LIQUIDS, FLASHPOINT FROM -18°C TO +23°C Closed Cup., TOXIC AND/OR CORROSIVE; MISCIBLE WITH WATER*
• 3 CLASS 3.3
FLAMMABLE LIQUIDS, FLASHPOINT FROM 23°C TO 61°C Closed Cup., TOXIC AND/OR CORROSIVE; 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).
Turn ship off-wind.

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 clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.
Spray nozzles.

Remarks by UN no.

• HYDRAZINE, ANHYDROUS (UN No. 2029)
Possible self-ignition at ambient temperatures.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:45+00:00