MATERIAL Safety Data Sheet (MSDS)
NITROUS OXIDE
N2O
SUPPLIER DETAILS
OTHER PROPERTIES
Supplier Name: Renegade Gas (Pty) Ltd
T/A Supagas (NSW) &
Supagas (QLD)
Head Office Address: 5 Benson Road, Ingleburn, 2565
Telephone: (02) 8788 4444
Fax: (02) 8788 4445
Emergency: 24hr EMERGENCY TELEPHONE
No. 1300 651 106
EMERGENCY SERVICES: DIAL 000
Website: www.supagas.net.au
Strong Oxidising Agent. Will support and enhance
combustion.
May react violently with Organic Materials, combustible
materials and reducing agents.
Above 300C Nitrous Oxide Can thermally decompose
to form corrosive & toxic products. Nitrous Oxide
decomposition liberates heat and is not reversible and leads
to a large pressure increase within the cylinder.
Liquid Nitrous oxide is very cold and its low temperature may
cause metals to become brittle if spilt.
MANUFACTURER’S CODE
INGREDIENTS
UN Number: 1070 Nitrous Oxide, compressed
DG Class: 2.2 Non - flammable gas,
non-toxic gas
Packaging Group: Not applicable
Subsidiary Risk(s): 5.1 Oxidiser
Note: Cylinders of compressed
Nitrous Oxide may be labelled
with an “Oxidising gas” label
instead of class 2.2 and subsidiary risk 5.1 Labels.
Hazchem Code: 2 (S)
EPG No: 2C8
Poisons Schedule: Clasified as Schedule 4 (S4)
Uses: This product is supplied for Scientific Applications .e.g
as an oxidant for detectors
for flame atomic absorption
spectrometers.
PHYSICAL DESCRIPTION & PROPERTIES
Appearance: Colourless gas, slightly soluble
in water
Boiling Point: -88 ∞C
Melting point: -90.8∞C
Vapour Pressure: 5100kPa
Volatiles: 100%
Evaporation Rate: Very Rapid if Cylinder
Valve Open
Odour: Odourless
Vapour Density: 1.5 @ 20∞C (Air=1)
Weight per ml: 1.2 (water =1)
Flash Point: None
Flammability Limits: None
Auto-Ignition Temperature: Not Applicable
MSDS061
Name
CAS No
Proportion
Nitrous Oxide
10024-97-2
> 99.5%
HEALTH EFFECTS
Acute: Swallowed: An unlikely route, unless as a
cryogenic liquid.
Skin: No effects reported from the gas.
Contact with liquefied Nitrous Oxide will cause moderate
to severe frostbite.
Eyes: No effects reported from the gas
Inhaled: Nitrous Oxide is a simple asphyxiant. May replace
oxygen in the atmosphere. Symptoms of approaching
asphyxia include accelerated pulse rate, increase in the rate
and volume of respiration,decreased ability to think clearly,
inattention and loss of muscle coordination. At only 10-14%,
there may be nausea and vomiting, and an inability to move.
Below 6% oxygen, breathing is likely to be in gasps, with risk
of convulsions. Breathing a pure Nitrous Oxide atmosphere
may result in immediate loss of consciousness and death
within a few minutes.
Chronic: Breathing and repeated exposure to high levels
of Nitrous Oxide at atmospheric pressure may lead to
thickening and/or scarring of exposed tissues, including
the lungs.
TLV/TWA: 50ppm
LD50: No data found
If poisoning occurs, contact a doctor or Poisons
Information Centre Ph: 13 11 26
MATERIAL Safety Data Sheet (MSDS)
NITROUS OXIDE continued
Swallowed: Not applicable.
Skin: If skin contact occurs with liquid Nitrous Oxide, remove
contaminated clothing and flush skin thoroughly with water.
Eyes: If in eyes, hold eyes open, flood with water for at least
15 minutes and see a doctor.
Inhaled: Remove from exposure, rest and keep warm.
If unconscious, assist breathing and seek medical
assistance immediately
FIRST AID FACILITIES
Recommended: None
Advice to Doctor: Product is Nitrous Oxide, compressed.
Overexposure to high concentrations of Nitrous Oxide
at elevated pressures may lead to delayed onset of
pulmonary oedema.
Contact Poisons Information Centre if ingested
on 131 126.
EXPOSURE LIMITS
National Occupational Health & Safety Commission
(NOHSC) – (Worksafe Australia)
TLV-TWA: 50ppm
TLV-STEL: None assigned
Engineering Controls: Prevent contact with grease and oils.
Do not use combustible materials for
construction. Always use with a regulator, and pressurise
systems slowly. Secure cylinders at all times. Ensure
adequate ventilation (same as outdoors) at all times. Personal
Protection: Avoid exposure to high concentrations of Nitrous
Oxide during pregnancy.
Personal protection to be selected from those recommended
below, as appropriate to mode of use, quantity handled and
degree of hazard:
Safety Glasses
Safety Shoes
Rubber Gloves
Flammability: Not Flammable. Will support combustion.
Contact with combustible materials
may cause fire. Combustible materials, such as grease and
oils, in contact with
Nitrous Oxide under pressure may cause explosion.
STORAGE AND TRANSPORT
Storage Temperature: Room Temperature
UN Class: 2.2 Compressed gas
Packaging Group: 5.1 Oxidiser
MSDS061
UN Number: 1070 Nitrous Oxide, compressed
EPG No: 2C8
Correct Shipping Name: Nitrous Oxide, compressed
Observe requirements of The Australian Code for the
Transport of Dangerous Goods by Road and Rail. Observe
the requirements of State Dangerous Goods (Storage and
Handling) Regulations.
STORAGE ADVICE
Store cylinders securely in a cool, well-ventilated area, out of
direct sunlight. Keep valves closed, even on empty cylinders.
Keep upright. Keep away from naked flames and other
sources of heat. No Smoking. Keep away from flammable or
combustible material.
Keep away from the oils and grease.
Prevent gas from collecting in enclosed or low-lying places.
Rotate cylinders in storage to ensure that they are not
stored for excessive periods. Protect from physical damage,
particularly valves and regulators. Store away from heavy
traffic and emergency exits
SPILLS AND DISPOSAL
Disposal of small spillage only
CAUTION: Before dealing with spillage take the necessary
protective measures, inform others to keep at a safe distance
and shut off all possible sources of ignition. Extinguish all
naked flames. Switch off all non-flameproof equipment.
Shut off pressure regulator or cylinder valve if safe to do so.
Isolate cylinder if safe to do so.
Relieve system pressure. Disconnect cylinder and remove
to a safe, open area. Allow venting to atmosphere. Inform
cylinder supplier or emergency services as appropriate. Do
not attempt to repair damaged valve or regulators.
FIRE/EXPLOSION HAZARD
Not flammable. Will violently support combustion. Contact
with combustible materials may cause fire. Combustible
materials, such as grease and oils, in contact with Nitrous
Oxide under pressure may cause explosion.
Compressed gas: exposure to high temperatures, as in a fire,
may lead to explosion. Do not approach cylinders suspected
of being hot. Cool cylinders exposed to fire with water from
a safe location.
MATERIAL Safety Data Sheet (MSDS)
NITROUS OXIDE continued
Above 300C Nitrous Oxide Can thermally decompose
to form corrosive & toxic products. Nitrous Oxide
decomposition liberates heat and is not reversible and leads
to a large pressure increase within the cylinder.
In case of small fire/explosion use: Water
In case of major emergency:
Hazchem Code: 2 (S)
Extinguishant: Water fog or fine water spray
Danger of violent reaction or explosion? Yes
Protective Clothing: Breathing apparatus and protective
gloves for fire only.
Appropriate Measures: Dilute
Evacuate? Yes, if cylinders near, or in path of, fire
OTHER INFORMATION
Prevent leaking gas from entering drains or sewers.
Report Reviewed: 6 June 2014
MSDS061