MATERIAL SAFETY DATA SHEET (MSDS)

AMMONIA
(Please ensure that this MSDS is received by the appropriate person)
DATE: September 2015 Version 3
Ref. No.: MS025 Labelling Elements:
1 PRODUCT AND COMPANY IDENTIFICATION Hazard Pictograms

Product Name Ammonia

Chemical Formula NH3
Trade name Ammonia
Colour coding Silver body with a Red(A.11) circle below
the valve, and a yellow band immediately
below the red circle
Valve CGA240-3/8 inch – 18 NGT right hand
female
Company Identification African Oxygen Limited

23 Webber Street
Johannesburg, 2001
Tel. No: (011) 490-0400
Fax No: (011) 490-0506
EMERGENCY NUMBER 0860111185 or (011) 873 4382

(24 hours)
Signal Word: Danger
2 COMPOSITION/INFORMATION ON INGREDIENTS
Chemical Name Ammonia Hazard Statements:
H221: Flammable gas
Chemical family Corrosive, caustic, reactive gas
Synonyms Anhydrous ammonia, R717 H331: Toxic if inhaled
CAS No. 7664-41-7 H314: Causes severe skin burns and eye damage
UN No. 1005 H400: Very toxic to aquatic life
ERG No. 125
Hazchem Warning Corrosive toxic gas
Precautionary Statements:
3 HAZARDS IDENTIFICATION (SEE FIRST AID MEASURES SECTION FOR TREATMENTS)
P260: Do not breathe gas/vapours
Main Hazards Irritating or corrosive to exposed tissues. Inhalation of
vapours may result in pulmonary oedema and P262: Do not get in eyes, on skin, or on clothing
chemical pneumonitis. Contact with liquid product P264: Wash hands thoroughly after handling
may cause frostbite or freeze burns, in exposed P271: Use only outdoors or in a well ventilates area
tissues. All cylinders are portable gas containers and P273: Avoid release to the environment
must be regarded as pressure vessels at all times. P391: Collect spillage
Adverse Health Effects. Inhalation of high concentrations produces P284: Wear respiratory protection
violent coughing due to the local action on the P304+P340: IF INHALED: remove to fresh air and keep at rest in a
respiratory tract. If rapid escape is not possible,
position comfortable for breathing
severe lung irritation, pulmonary oedema and death
P310: Immediately call a POISON CENTRE or doctor/physician
can result. Lower concentrations cause eye irritation,
laryngitis and bronchitis. P320: Specific treatment is urgent (see first aid measures section)
P301+P330+P331: IF SWALLOWED: Rinse mouth. Do not induce
Biological Hazards. Because of its alkaline properties, long-term
exposure to flora can cause damage. Aquatic fauna vomiting
can also be affected should the pH of their P303+P361+P353: IF ON SKIN (or hair): Immediately remove or take
environment change due to long-term exposure to off all contaminated clothing. Immediately rinse skin
high concentrations of ammonia. with water/shower
P363: Wash contaminated clothing before re-use.
Vapour Inhalation. Ammonia acts principally on the upper
respiratory tract, where it exerts an alkaline, caustic P305+P351+P338: IF IN EYES: Rinse cautiously with water for
action. It produces respiratory reflexes such as several minutes. Remove contact lenses, if present
coughing and arrest of respiration. It affects the and easy to do so. Continue rinsing.
conjunctiva and cornea immediately. Inhalation P377: Leaking gas fire: Do not extinguish, unless leak can be stopped
causes acute inflammation of the respiratory organs, safely.
coughing, oedema of the lungs, chronic bronchial P401: Store in accordance with national regulations
catarrh, secretion of saliva and retention of urine. P403+233: Store in a well ventilated place and keep container tightly
Eye Contact Exposure to high gas concentrations may cause closed
temporary blindness and severe eye damage. P405: Store locked up
Direct contact of the eyes with liquid anhydrous P501: Do not dispose contents/container to storm water drains, treat
ammonia will produce serious eye burns. as hazardous waste.
Skin Contact Liquid anhydrous ammonia produces skin burns on
contact.
Ingestion Swallowing of the liquid results in severe corrosive
action of the mouth, throat, and stomach.

AFROX is a member of The Linde Group Page 1 of 4

The Stripe Symbol and the word “AFROX” are AFROX Group Trademarks.
 MATERIAL SAFETY DATA SHEET (MSDS)
AMMONIA
(Please ensure that this MSDS is received by the appropriate person)
patient can swallow, encourage him to
4 FIRST AID MEASURES drink large quantities of 0,5% citric acid
Prompt medical attention is mandatory in all cases of overexposure. solution or lemonade. Never give
Rescue personnel should be equipped with self-contained breathing anything by mouth to an unconscious
apparatus. Any conscious person who has inhaled ammonia causing person.
irritation should be assisted to an uncontaminated area and inhale Ingestion If liquid anhydrous ammonia has been
fresh air. A person overcome by ammonia should immediately be swallowed, call a physician immediately.
carried to an uncontaminated area. If breathing has ceased, artificial If the patient is conscious and able, he
respiration must be started immediately, preferably by trained should drink large amounts of water to
personnel. If breathing is weak or has been restored by artificial dilute the chemical. Do not induce
respiration, oxygen may be administered. Summon a physician vomiting if the patient is in shock,
immediately for anyone who has been burned or overcome by extreme pain or is unconscious. If
ammonia. Until a physician arrives, and after having accomplished a vomiting begins, place the patient face
thorough removal of ammonia as possible, keep the patient warm and down with head lower than hips; this
quiet, and take such specific action as may be indicated. prevents vomit from entering the lungs
Eye Contact Persons with potential exposure to ammonia should not and causing further injury
wear contact lenses. Call a physician at once. 5 FIRE FIGHTING MEASURES
Immediately begin irrigation of the eyes with copious
amounts of clean water while holding the eyelids apart. Extinguishing media. Fog-water spray. (In the absence of fog
Continue irrigation for 15 minutes. Repeat this procedure equipment, a fine spray of water may
every 10 minutes for an hour, each time irrigating for a be used.) Use media suitable for
period of 5 minutes. If readily available, a 5% boric acid surrounding fire. Although ammonia
solution may be used instead of water, but irrigation must does not represent a serious
not be delayed while such a solution is sought or flammability hazard, mixtures of air and
prepared. Prompt and thorough irrigation is of primary ammonia containing from 15% to 28%
importance. Any standard anaesthetic solution for ammonia vapour by volume will ignite
ophthalmic use ordered by the physician may be instilled when sparked, or exposed to
for control of severe pain, but only after the 15 minute temperatures exceeding 651°C.
period of irrigation has been completed. Continuous cold
Specific Hazards High levels of ammonia can produce
boric acid compresses should be used for cases of
corrosive effects on tissues and can
severe injury, in addition to irrigation.
cause laryngeal and bronchial spasm
No oils or ointments should be instilled until after the and oedema so as to obstruct breathing.
eye has been examined by a qualified physician, and
then only as prescribed by him. Ulcers of the cornea Emergency Actions. Rescue personnel should be equipped
should be treated by an ophthalmologist. with self-contained breathing apparatus.
Skin Contact If skin contact is extensive and emergency showers If possible, stop the flow of gas. Since
available, the victim should get under the emergency
ammonia is soluble in water, it is the
best extinguishing media - not only in
shower immediately. Contaminated clothing and shoes
extinguishing the fire, but also absorbing
should be removed under the shower. In other cases, the
the escaped ammonia gas. Evacuate the
affected areas should be washed thoroughly with large
area. All cylinders should be removed
amounts of running water for at least 15 minutes. Do not
from the vicinity of the fire. Cylinders that
apply salves or ointments or cover burns with dressing;
cannot be removed should be cooled
however, protect the injured area with a clean cloth prior
with water from a safe distance.
to medical care. Do not attempt to neutralise the
Cylinders which have been exposed to
ammonia. Subsequent medical treatment is otherwise
excessive heat should be clearly
the same as for thermal burns
. identified and returned to the supplier.
Inhalation The conscious person who has inhaled a concentration of CONTACT THE NEAREST AFROX
ammonia which causes irritation effects should go to an BRANCH.
uncontaminated area and inhale fresh air or oxygen. Eye,
nose and throat irritation should be treated as described Protective Clothing. Self-contained breathing apparatus.
below for more serious exposures. However, if the Safety gloves, Goggles and shoes, or
exposure has been to minor concentrations for a limited boots, should be worn when handling
time, usually no treatment will be required. A worker cylinders.
overcome by ammonia must be carried to an Environmental precautions. As the gas is lighter than air, ensure that it
uncontaminated atmosphere and, if breathing is laboured
is not trapped in confined spaces. Knock
or has ceased, given artificial respiration (back-pressure,
down pockets of gas with fog-water
arm lift, or mouth-to-mouth resuscitation) immediately,
spray, and ventilate the area using
preferably by trained personnel. When breathing has
forced-draft if necessary. Prevent from
been restored, 100% oxygen is administered, but not for
entering sewers and drains.
more than 1 hour of continuous treatment at one time.
Oxygen therapy may be interrupted after 1 hour, and
reinstituted as the clinical condition indicates. Observe
for laryngeal spasm and perform tracheotomy if
indicated. In case of severe exposure, the patient should
breathe 100% oxygen under positive exhalation pressure
(4cm) for one-half hour periods every hour. Treatment
may be continued in this way until symptoms subside or 6 ACCIDENTAL RELEASE MEASURES
other clinical indications for interruption appear. Personal Precautions. Personnel working with anhydrous ammonia
should be thoroughly familiar with safety precautions for handling
Contact with nose & throat. Irrigate the nose and mouth
a gas corrosive to human tissue as well as measures
continuously for 15 minutes. If the
AFROX is a member of The Linde Group Page 2 of 4
The Stripe Symbol and the word “AFROX” are AFROX Group Trademarks.
 MATERIAL SAFETY DATA SHEET (MSDS)

AMMONIA
(Please ensure that this MSDS is received by the appropriate person)
for handling emergencies. A gas mask must be worn when
breaking and making connections, or pressuring a system. Self- 10 STABILITY AND REACTIVITY
contained breathing apparatus should be available both up and Conditions to avoid. Heating of cylinders, as the increase in pressure
down wind.
Environmental Precautions. Because of its high alkalinity and solubility bears a direct relationship to increase in temperature. When the
gas is exposed to temperatures in the range 449°C at
in water, ammonia can alter the pH balances of surface water, soil 101,325kPa, dissociation will occur, with the release of nitrogen
and plants. Should they be exposed to high concentrations for any and hydrogen. The hydrogen could then form explosive gas/air
length of time, these changes in pH could be detrimental to both mixtures. Never use cylinders as rollers or supports, or for any
flora and fauna. other purpose than the storage of ammonia.
Small spills. Only personnel trained for, and designated to handle Incompatible Materials. Most common metals are not affected by dry
emergencies, should attempt to stop a leak. Respiratory
equipment of a type suitable for ammonia must be worn. All ammonia. However, when combined with water vapour,
persons not so equipped must leave the affected area until the ammonia will attack copper, zinc, or alloys containing copper as
leak has been stopped. If ammonia vapour is released, the a major alloying element. Therefore, these materials should not
irritating effect of the vapour will typically force personnel to be used in contact with ammonia.
leave the area before they have been exposed to dangerous Hazardous Decomposition Products See above, Conditions to Avoid
concentrations. Knock down small amounts of ammonia using a 11 TOXICOLOGICAL INFORMATION
fog-water spray.Prevent from entering sewers or drains.
Ventilate the area using forced-draught ventilation if necessary. Acute Toxicity Ammonia is not a systemic poison
Large spills Evacuate all unprotected personnel to upwind areas. Skin & eye contact Severe irritant
Disperse leaks with water spray or fog to lower concentration of Chronic Toxicity Chronic irritation to the eyes, nose, and upper
ammonia gas. Neutralise contaminated area with a dilute acid, respiratory tract may result from repeated exposure
and deluge with plenty of water. Rotate a leaking cylinder to to the vapours.
allow gas instead of liquid to escape. Keep area isolated until all Carcinogenicity: No known effect.
gas has been dispersed. Evaporation is very rapid causing ice to
Mutagenicity: Genetic mutations observed in bacterial and
form on leaking cylinders
mammalian test systems.
7 HANDLING AND STORAGE Reproductive Hazards: No known effect
Always store full cylinders in upright position. Avoid dragging, rolling or National Legislation: None
sliding cylinders. Use trolleys for handling. Cylinders should be stored in (For further information see Section 3. Adverse Health Effects).
a well ventilated area on a hard dry surface. Ventilation inlets should be
12 ECOLOGICAL INFORMATION
at ceiling and floor level. Cylinders must be used on a "first in - first out"
basis. Keep cylinders away from sources of heat. Keep away from Ammonia gas can cause damage to the ecology due to its high alkalinity
children. and affinity for water. pH changes can occur in the immediate environs
of a spill which could affect both flora and fauna
8 EXPOSURE CONTROLS/PERSONAL PROTECTION
13 DISPOSAL CONSIDERATIONS
Occupational Exposure Hazards. Inhalation of high concentrations Disposal Methods. Ammonia may be disposed of by discharge into
produces violent coughing due to local action on the respiratory tract. If water of sufficient volume to absorb it. Disposal of
rapid escape is not possible, severe lung irritation, pulmonary oedema the resultant ammonium hydroxide, including and
and death can result. Lower concentrations cause eye irritation, laryngitis subsequent neutralisation products, must be
and bronchitis. Exposure to high gas concentrations may cause done in an environmentally safe manner that, for
temporary blindness and severe eye damage. Direct contact of the eyes example, will not be harmful to aquatic life. Large
with liquid anhydrous ammonia will produce serious eye burns. Liquid amounts should only be handled by the gas
anhydrous ammonia produces skin burns on contact. supplier.
TLV 25ppm 14 TRANSPORT INFORMATION
STEL 35ppm
Engineering control measures. Engineering control measures are ROAD TRANSPORTATION
preferred to reduce exposures. General methods include mechanical UN No. 1005
ventilation, process or personal enclosure, and control of process Class 2.3 Toxic gas
conditions. Administrative controls and personal protective equipment may Subsidiary risk Corrosive, inhalation hazard
also be required. Use a suitable flameproof ventilation system separate ERG No 125
from other exhaust ventilation systems. Exhaust direct to outside and Hazchem warning Toxic gas
supply sufficient replacement air to make up for air removed by exhaust SEA TRANSPORTATION 1005
system. IMDG
Personal Eyes - Chemical goggles class 2.3
Label Toxic gas
protection Hands - Rubber gloves AIR TRANSPORTATION
Skin - rubber or plastic apron ICAO/IATA Code 1005
Class 2.3
9 PHYSICAL AND CHEMICAL PROPERTIES
Subsidiary risk Toxic, corrosive gas
PHYSICAL DATA Packaging group
Chemical Symbol NH3 - Cargo 200
Molecular Weight 17,031 - Passenger Forbidden
Specific Volume @ 20°C & 101,325 kPa 1405,6 ml/g Maximum quantity allowed
Boiling point @ 101,325 kPa -33,4°C - Cargo 25kg
Relative density (Air = 1) @ 101,325 kPa 0,599 - Passenger Forbidden
Flammability levels in air 16 - 25% (by vol.) 15 REGULATORY INFORMATION
Autoignition temperature 651°C GHS Hazard class: Flam gas 2
Colour None
Taste Alkaline Acute tox 3
Odour Pungent (Inhalation)
AFROX is a member of The Linde Group Page 3 of 4
The Stripe Symbol and the word “AFROX” are AFROX Group Trademarks.
 MATERIAL SAFETY DATA SHEET (MSDS)
AMMONIA
(Please ensure that this MSDS is received by the appropriate person)
Skin corr 1B
Acute aquatic 1

National Legislation OHSact and Regulations (85 of 1993)

Refer to SANS 10234 and SANS 1034 Supplement for explanation of
the above
16 OTHER INFORMATION

Bibliography
Compressed Gas Association, Arlington, Virginia
Handbook of Compressed Gases - 3rd Edition
Matheson. Matheson Gas Data Book - 6th Edition
SANS 10265 - Labelling of Dangerous Substances
17 EXCLUSION OF LIABILITY
Information contained in this publication is accurate at the date of
publication. The company does not accept liability arising from the
use of this information, or the use, application, adaptation or
process of any products described herein.

AFROX is a member of The Linde Group Page 4 of 4

The Stripe Symbol and the word “AFROX” are AFROX Group Trademarks.