Entonox
PRODUCT :ENTONOX MSDS NR : HKO-009L-04/2007/1 PAGE 1/2
1 IDENTIFICATION OF THE SUBSTANCE/ 6 ACCIDENTAL RELEASE MEASURES
SAFETY PREPARATION AND OF THE COMPANY
Evacuate area. Ensure adequate air
Personal
DATA ventilation. Eliminate ignition sources.
Entonox
Product name precautions
Wear self contained breathing
50% N2O / 50% O2
Chemical formula
SHEET apparatus when entering area unless
See end of each page
Company
atmosphere is proved to be safe.
identification
Try to stop release.
Environmental
(852) 2661 0920
Emergency phone
Prevent from entering sewers,
precautions
Nos (24 hrs.)
basements and workpits, or any place
where its accumulation can be
2 COMPOSITION / INFORMATION ON
dangerous.
INGREDIENTS
Ventilate area.
Clean up methods
Preparation
Substance/
Preparation
7 HANDLING AND STORAGE
Contains the following components:
Components/
50% Nitrous Oxide, 50 % Oxygen
Impurities Handling and storage
Use no oil or grease.
N2O 10024-97-2
CAS Nr Open valve slowly to avoid pressure shock. Segregate from
flammable gases and other flammable materials in store. Suck
O2 7782-44-7
back of water into the container must be prevented. Do not allow
N2O 50% + 2% v/v
Specifications
backfeed into the container. Use only properly specified equipment
O2 50% + 2% v/v
which is suitable for this product, its supply pressure and
3 HAZARDS IDENTIFICATION temperature. Contact your gas supplier if in doubt. Keep away
from ignition sources (including static discharges). Refer to
Compressed gas
Hazards supplier's container handling instructions.
identification Oxidant. Strongly supports Keep container below 50癈 in a well ventilated place.
combustion. May react violently
with combustible materials.
8 EXPOSURE CONTROLS/PERSONAL
PROTECTION
4 FIRST AID MEASURES
Do not smoke while handling product.
Personal
In low concentrations may cause
Inhalation protection Wear suitable hand, body and head
narcotic effects. Symptoms may protection.
include dizziness, headache, nausea Ensure adequate ventilation.
and loss of co-ordination.
Ingestion is not considered a potential
Ingestion
9 PHYSICAL AND CHEMICAL PROPERTIES
route of exposure.
1.319 (air=1)
Relative density, gas
5 FIRE FIGHTING MEASURES 1.615 kg/m3 at 15oC and 1013 mb
Density of gas
39 mg/l (oxygen)
Solubility mg/l water
Supports combustion
Specific hazards
Colourless gas
Appearance/Colour
Non flammable
Sweetish
Odour
Exposure to fire may cause containers
Gas/vapour heavier than air. May
Other data
to rupture/explode.
accumulate in confined spaces,
particularly at or below ground level.
If involved in a fire the following toxic
Hazardous
and/or corrosive fumes may be
combustion
produced by thermal decomposition:
products 10 STABILITY AND REACTIVITY
Nitric Oxide; Nitrogen Dioxide
All known extinguishants can be used.
Suitable May react violently with combustible
Stability and
materials.
extinguishing media Reactivity
May react violently with reducing
If possible, stop flow of product.
Specific methods
agents.
Move container away and cool with
Violently oxidises organic material.
water from a protected position.
Inform Fire Services Department
None
Special protective
equipment for
fire fighters
HONG KONG OXYGEN & ACETYLENE CO., LTD.
12 CHUN YAT STREET, TSEUNG KWAN O INDUSTRIAL ESTATE, KOWLOON, HONG KONG.
Telephone : (852) 2372 2288
Product Enquiry
Fax : (852) 2372 2508
Entonox
PRODUCT :ENTONOX MSDS NR : HKO-009L-04/2007/1 PAGE 2/2
Compressed Gas, Oxidizing, N.O.S.
Proper shipping
11 TOXICOLOGICAL INFORMATION
name
SAFETY Category 2/Class 1: Compressed
Category
Anaesthetic ?non irritating gas
General
Gases/Permanent Gases
DATA No known toxicological effects from
R8 Contact with combustible material
Risk phrases
this product.
SHEET may cause fire
12 ECOLOGICAL INFORMATION S9 Keep container in well ventilated
Safety phrases
place
No known ecological damage caused
General
S17 Keep away from combustible
by this product.
material
Dangerous Goods Ordinance (Chapter
National legislation
295)
13 DISPOSAL CONSIDERATIONS
Discharge to atmosphere in large
General
16 OTHER INFORMATION
quantities should be avoided.
Do not discharge into any place where
Ensure all national / local regulations are observed.
its accumulation could be dangerous.
Ensure operators understand the hazard of oxygen enrichment.
Contact supplier if guidance is
Before using this product in any new process or experiment, a
required.
thorough material compatibility and safety study should be carried
out.
Always leak check cylinders when first collected, delivered or used
14 TRANSPORT INFORMATION
using an approved leak detection fluid.
Compressed Gas, Oxidizing, N.O.S.
Proper Shipping Details given in this document are believed to be correct at the
Name time of going to press. Whilst proper care has been taken in the
preparation of this document, no liability for injury or damage
3156
UN Nr
resulting from its use can be accepted.
2.2: non flammable compressed gas
Class
5.1: oxidizing agent
Subsidiary risk
Label 2.2: non flammable non toxic gas
Labelling ADR
Label 5.1: fire intensifying risk
Other transport information
Avoid transport on vehicles where the load space is not separated
from the driver's compartment.
Ensure vehicle driver is aware of the potential hazards of the load
and knows what to do in the event of an accident or an emergency.
Before transporting product containers ensure that they are firmly
secured and:
- cylinder valve is closed and not leaking
- valve outlet cap nut or plug (where provided) is correctly
fitted
- valve protection device (where provided) is correctly fitted
- adequate ventilation.
- compliance with applicable regulations.
15 REGULATORY INFORMATION
HONG KONG OXYGEN & ACETYLENE CO., LTD.
12 CHUN YAT STREET, TSEUNG KWAN O INDUSTRIAL ESTATE, KOWLOON, HONG KONG.
Telephone : (852) 2372 2288
Product Enquiry
Fax : (852) 2372 2508