Registration Dossier

Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

General advice : Remove victim to uncontaminated area wearing self contained breathing
apparatus. Keep victim warm and rested. Call a doctor. Apply artificial respiration
if breathing stopped.
Eye contact : Immediately flush eye(s) with plenty of water. In the case of contact with eyes,
rinse immediately with plenty of water and seek medical advice.
Keep eye wide open while rinsing.
Skin contact : Remove contaminated clothing. Drench affected area with water for at least 15
minutes. Wash frost-bitten areas with plenty of water. Do not remove clothing.
Cover wound with sterile dressing.
Ingestion : Ingestion is not considered a potential route of exposure.
Inhalation : Move to fresh air. If breathing has stopped or is labored, give assisted
respirations. Supplemental oxygen may be indicated. If the heart has stopped,
trained personnel should begin cardiopulmonary resuscitation immediately. In
case of shortness of breath, give oxygen. Consult a doctor.

Most important symptoms and effects, both acute and delayed
Symptoms : No data available.
Indication of any immediate medical attention and special treatment needed
Treatment : May cause acute intravascular hemolysis and consequent renal failure. Bronze
pigmentation of the skin may be confused with jaundice. Elevated T-wave
changes on the EKG may reflect release of intracellular potassium into the
plasma. Management of poisoning is dependent on treatment of the hemolytic
episode and its consequences. Hemodialysis, peritoneal dialysis and exchange
transfusions should be considered; consult with a competent nephrologist as
soon as possible.

Fire-fighting measures

Extinguishing media
Suitable extinguishing media : All known extinguishing media can be used.
Extinguishing media which
must not be used for safety
: No data available.
Special hazards arising
from the substance or
: Gas is heavier than air and may collect in low areas or travel along the ground
where there may be an ignition source present. If flames are accidentally
extinguished, explosive re-ignition may occur; therefore, appropriate measures
should be taken(e.g. total evacuation to protect persons from cylinder fragments
and toxic fumes should a rupture occur). Upon exposure to intense heat or flame,
cylinder will vent rapidly and or rupture violently. Combustion by-products may be
toxic. Move away from container and cool with water from a protected position.
Keep adjacent cylinders cool by spraying with large amounts of water until the
fire burns itself out. Do not allow run-off from fire fighting to enter drains or water
courses. If possible, shut off the source of gas and allow the fire to burn itself out.
Extinguish fire only if gas flow can be stopped. Do not extinguish a leaking gas
flame unless absolutely necessary. Spontaneous/explosive re-ignition may
occur. Extinguish any other fire.
Advice for fire-fighters : Use self-contained breathing apparatus.

Accidental release measures

Personal precautions,
protective equipment and
emergency procedures
: Evacuate personnel to safe areas. Remove all sources of ignition. Use
self-contained breathing apparatus or positive pressure air line with mask and
escape pack in areas where concentration is unknown or above the exposure
limits. Never enter a confined space or other area where the flammable gas
concentration is greater the 10% of its lower flammable limit. Wear self-contained
breathing apparatus when entering area unless atmosphere is proved to be safe.
Ventilate the area.
: Should not be released into the environment. Prevent further leakage or spillage
if safe to do so. Prevent from entering sewers, basements and workpits, or any
place where its accumulation can be dangerous.
Methods and material for
containment and cleaning
: Ventilate the area. Approach suspected leak areas with caution. Keep area
evacuated and free from ignition sources until any spilled liquid has evaporated.
(Ground free from frost).
Additional advice : If possible, stop flow of product. Increase ventilation to the release area and
monitor concentrations. If leak is from cylinder or cylinder valve, call the Air
Products emergency telephone number. If the leak is in the user's system, close
the cylinder valve, safely vent the pressure, and purge with an inert gas before
attempting repairs.

Handling and storage

Precautions for safe handling
Carbon steel, stainless steel, Monel, Hastelloy are preferred metals for handling this material. Kel-F and Teflon are
the preferred elastomers. Viton and Nylon are acceptable. Cylinders should be stored upright with valve protection
cap in place and firmly secured to prevent falling or being knocked over. Protect cylinders from physical damage;
do not drag, roll, slide or drop. Do not allow storage area temperature to exceed 50°C (122°F). Only experienced
and properly instructed persons should handle compressed gases/cryogenic liquids. Before using the product,
determine its identity by reading the label. Know and understand the properties and hazards of the product before
use. When doubt exists as to the correct handling procedure for a particular gas, contact the supplier. Do not
remove or deface labels provided by the supplier for the identification of the cylinder contents. When moving
cylinders, even for short distances, use a cart (trolley, hand truck, etc.) designed to transport cylinders. Leave
valve protection caps in place until the container has been secured against either a wall or bench or placed in a
container stand and is ready for use. Use an adjustable strap wrench to remove over-tight or rusted caps. Before
connecting the container, check the complete gas system for suitability, particularly for pressure rating and
materials. Before connecting the container for use, ensure that back feed from the system into the container is
prevented. Ensure the complete gas system is compatible for pressure rating and materials of construction.
Ensure the complete gas system has been checked for leaks before use. Employ suitable pressure regulating
devices on all containers when the gas is being emitted to systems with lower pressure rating than that of the
container. Never insert an object (e.g. wrench, screwdriver, pry bar, etc.) into valve cap openings. Doing so may
damage valve, causing a leak to occur. Open valve slowly. If user experiences any difficulty operating cylinder
valve discontinue use and contact supplier. Close container valve after each use and when empty, even if still
connected to equipment. Never attempt to repair or modify container valves or safety relief devices. Damaged
valves should be reported immediately to the supplier. Close valve after each use and when empty. Replace outlet
caps or plugs and container caps as soon as container is disconnected from equipment. Do not subject containers
to abnormal mechanical shocks which may cause damage to their valve or safety devices. Never attempt to lift a
cylinder by its valve protection cap or guard. Do not use containers as rollers or supports or for any other purpose
than to contain the gas as supplied. Never strike an arc on a compressed gas cylinder or make a cylinder a part of
an electrical circuit. Do not smoke while handling product or cylinders. Never re-compress a gas or a gas mixture
without first consulting the supplier. Never attempt to transfer gases from one cylinder/container to another.
Always use backflow protective device in piping. Purge air from system before introducing gas. Installation of a
cross purge assembly between the cylinder and the regulator is recommended. When returning cylinder install
valve outlet cap or plug leak tight. Never use direct flame or electrical heating devices to raise the pressure of a
container. Containers should not be subjected to temperatures above 50°C (122°F). Prolonged periods of cold
temperature below -30°C (-20°F) should be avoided. Never attempt to increase liquid withdrawal rate by
pressurizing the container without first checking with the supplier. Never permit liquefied gas to become trapped in
parts of the system as this may result in hydraulic rupture. Ensure equipment is adequately earthed.

Conditions for safe storage, including any incompatibilities
Containers should be stored in a purpose build compound which should be well ventilated, preferably in the open
air. Full containers should be stored so that oldest s tock is used first. Observe all regulations and local
requirements regarding storage of containers. Stored containers should be periodically checked for general
condition and leakage. Local codes may have special requirements for toxic gas storage. Protect containers
stored in the open against rusting and extremes of weather. Containers should not be stored in conditions likely to
encourage corrosion. Containers should be stored in the vertical position and properly secured to prevent toppling.
The container valves should be tightly closed and where appropriate valve outlets should be capped or plugged.
Container valve guards or caps should be in place. Keep containers tightly closed in a cool, well-ventilated place.
Store containers in location free from fire risk and away from sources of heat and ignition. Full and empty cylinders
should be segregated. Do not allow storage temperature to exceed 50°C (122°F). Smoking should be prohi bited
within storage areas or while handling product or containers. Display "No Smoking or Open Flames" signs in the
storage areas. The amounts of flammable or toxic gases in storage should be kept to a minimum. Return empty
containers in a timely manner.

Technical measures/Precautions
Containers should be segregated in the storage area according to the various categories (e.g. flammable, toxic,
etc.) and in accordance whit local regulations. Provide sufficient air exchange and/or exhaust in work rooms.

Contaminated packaging:
Return cylinder to supplier.

Transport information

Land transport (ADR/RID)

UN number:
Shippingopen allclose all
Classification code:
2.3 (2.1)
SpecialProvisionsopen allclose all
Shippingopen allclose all
Remarksopen allclose all

Marine transport (IMDG)

UN number:
Proper shipping name and description:
Marine pollutant
Remarksopen allclose all

Air transport ICAO/IATA

Air transport forbidden

Additional transport information

Additional 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. The transportation information is not intended to convey all specific regulatory data relating to this
material. For complete transportation information, contact an Air Products customer service representative.

Exposure controls / personal protection

Engineering measures

Handle product only in closed system or provide appropriate exhaust ventilation at machinery.
Provide natural or explosion-proof ventilation adequate to ensure concentrations are kept below exposure limits.

Personal protective equipment

Respiratory protection:
Keep self contained breathing apparatus readily available for emergency use.
Use self-contained breathing apparatus or positive pressure air line with mask and escape pack in areas where concentration is unknown or above the exposure limits. Users of breathing apparatus must be trained.

Hand protection:
Sturdy work gloves are recommended for handling cylinders.
The breakthrough time of the selected glove(s) must be greater than the intended use period.

Eye protection:
Safety glasses recommended when handling cylinders.
A full faceshield should be worn in addition to safety glasses when connecting, disconnecting or opening cylinders.

Skin and body protection:
Cold temperatures may cause embrittlement of protective material resulting in
breakage and exposure. Contact with cold evaporating liquid on gloves or suit may cause cryogenic burns or frostbite.
Safety shoes are recommended when handling cylinders.

Wear as appropriate:
Flame retardant protective clothing.

Special instructions for protection and hygiene:
Provide good ventilation and/or local exhaust to prevent accumulation of
concentrations above exposure limits. Ensure adequate ventilation, especially in
confined areas.

Stability and reactivity

Stable under normal conditions.

Disposal considerations

Destruction via incineration followed by scrubbing is the most commonly used
method. In accordance with local and national regulations. Contact supplier if
guidance is required. Return unused product in original cylinder to supplier. Must
not be discharged to atmosphere.