BHDRR - Anhydrous Ammonia

Product Identification

Product ID:Anhydrous Ammonia
MSDS Date:12/01/85
Kit Part:=== Responsible Party ===
Company Name:Hill Brothers Chemical Co.
Address:1675 No. Main Street
Info Phone Num:714-998-8800
Chemtrec Ind/Phone:800-424-9300

Hill Brothers Chemical Co.

Telephone: CHEMTREC 800-424-9300



CAS: 7664-41-7

Fraction By Weight: 100%

OSHA PEL 50 ppm 18 mg/m³

ACGIH TLV: 25 ppm 9 mg/m³


Routes of Entry: Inhalation:Yes Skin:Yes Ingestion:Yes
Reports of Carcinogenicity:NTP:No IARC:No OSHA:Yes
Health Hazards Acute and Chronic:Ingestion: This material is a gas
under normal atmospheric conditions and ingestion is unlikely.
Ingestion of liquid ammonia may result in severe irritation or
ulceration of the mouth, throat and digestive tract which may be
displayed by nausea, vomiting, diarrhea and, in severe cases,
collapse, shock and death., Inhalation: Irritation to the mucous
membranes of the nose, throat and lungs is noticeable at 100 ppm.
Concentrations above 400 ppm will cause throat irritation and may
destroy mucous surfaces upon prolonged contact. High concentrations
can cause pulmonary edema. Breathing air containing concentrations
greater than 5,000 ppm may cause sudden death from spasm or
inflammation of the larynx., Skin: Liquid Ammonia produces severe
skin burns on contact. Ammonia gas may cause skin irritation,
especially if skin is moist. The liquid can cause skin damage
resulting from combined freezing and corrosive action on the skin.
Atmospheric concentrations above 30,000 ppm will burn and blister
skin after a few seconds of exposure., Eyes: Exposure to high gas
concentrations may cause temporary blindness and severe eye damage.
Direct contact of the eyes with liquid ammonia will produce serious
eye burns. NFPA Rating: Health - 3; Fire - 1; Reactivity - 0
0=Insignificant 1=Slight 2=Moderate 3=High 4=Extreme
Effects of Overexposure:Can cause burning of the eyes, conjunctivitis,
skin irritation, swelling of the eyelids and lips, dry red mouth
and tongue, burning in the throat, and coughing, and in more severe
cases of exposure, difficulty in breathing, signs and symptoms of
lung congestion, and, ultimately, death from respiratory failure
due to pulmonary edema may occur., Effects of Overexposure: Can
cause irritation and burns of the skin and mucous membranes.
Headache, salivation, nausea, and vomiting. Difficult or labored
breathing and cough with bloody mucous discharge. Can cause
bronchitis, laryngitis, hemoptysis, and pulmonary edema or
pneumonitis. Death may result. Can cause ulceration of the
conjunctiva and cornea, and corneal and lenticular opacities.
Damage to the eyes may be permanent.
Medical Cond Aggravated by Exposure:Ammonia is a respiratory irritant.
Persons with impaired pulmonary function may be at an increased
risk from exposure. Also pre-existing skin disorders may be
aggravated by exposure.

First Aid

First Aid:Ingestion: If this gas is swallowed in liquid form, keep
respiratory obstruction develop, immediately transport to medical
facility. Do not induce vomiting. Never give fluids or induce
vomiting if patient is unconscious or having convulsions.
Inhalation: Remove victim to fresh air. Give oxygen if breathing is
difficult. If breathing has stopped, start artificial respiration.
OBTAIN IMMEDIATE MEDICAL ATTENTION.Skin: Apply water immediately to
exposed areas of skin and continue for at least 30 minutes. Remove
contaminated clothing, shoes, and constrictive clothing while
continuing to apply water, being careful not to tear the skin. If
skin surface is damaged, apply a clean dressing. If skin surface is
not damaged, cleanse the affected area(s) thoroughly with mild soap
and water. Do not apply salves or ointments to affected areas.
air. Immediately flush with plenty of water for at least 30 minutes
with the eyelids held apart. OBTAIN IMMEDIATE MEDICAL ATTENTION.

Fire Fighting

Autoignition Temp:651° C; 1204°F
Lower Limits:16% by Volume
Upper Limits:25% by Volume
Extinguishing Media:Use water Spray or Water Fog, Carbon Dioxide, Polar
or Alcohol Foam, Dry Chemical. Halon may decompose into toxic
materials. Carbon dioxide can displace oxygen. Use caution when
applying halon or carbon dioxide in confined spaces.
Fire Fighting Procedures:Stop flow of gas. Use water fog to keep
fire-exposed containers cool and to protect personnel effecting the
shut-off. Wear self-contained breathing apparatus (SCBA) and
encapsulating chemical protective clothing. Approach fire upwind
and evacuate area downwind. Emergency responders in the danger area
should wear bunker gear and self-contained breathing apparatus for
fires beyond the incipient stage (29CFR 1910.156). In addition,
wear other appropriate protective equipment as conditions warrant
(See Section VIII). Isolate damage area, keep unauthorized
personnel out. Stop spill/release if it can be done with minimal
risk. If this cannot be done, allow fire to burn. Move undamaged
containers from danger area if it can be done with minimal risk.
Stay away from ends of container. Water spray may be useful in
minimizing or dispersing vapors. Cool equipment exposed to fire
with water, if it can be done with minimal risk.
Unusual Fire/Explosion Hazard:Gas may ignite at vapor concentrations
between 16% and 25% in air. However, ammonia-air mixtures are
difficult to ignite and burn with little vigor. In the absence of
oxygen enrichment, the risk of initiating an accidental fire or
explosion is low. Do not allow ammonia vapors to accumulate in
confined areas where ignition may occur. Intense heating
particularly in contact with hot metallic surfaces may cause
decomposition of ammonia generating hydrogen, a flammable gas.

Accidental Release

Spill Release Procedures:Steps To Be Taken In Case Material Is Released
Or Spilled: Isolate and evacuate the leak or spill area immediately
for at least 150 feet in all directions. For larger spills, isolate
at least 300 feet in all directions and then evacuate area downwind
at least 0.4 miles in width and at least 0.8 miles in length. Keep
area isolated until gas has dispersed. Note that although ammonia
gas is lighter than air, sudden release may generate an aerosol of
liquefied ammonia which may cling to the ground for long distances.
May ignite. Keep all sources of ignition away from spill/release.
Do not apply water onto leaking tank. Stop the flow of gas or
liquid. Wear full protective clothing and self-contained breathing
apparatus. Use water to protect personnel effecting the shut-off.
Approach from upwind. Dike liquid spills to contain liquid.
Evacuate the area immediately. Eliminate all open flames in
vicinity of indoor spills or released vapor. Water fog can be used
to cleanse atmosphere of ammonia vapor. Downwind areas can be
protected by water fog nozzles positioned downwind.
Neutralizing Agent:


Handling and Storage Precautions:Contents under pressure. The use of
explosion-proof equipment is recommended and may be required (see
appropriate fire codes). Do not enter confined spaces such as tanks
or pits without following proper entry procedures such as ASTM
D-4276. Protect against physical damage. Outside shaded area or
detached storage is preferred. Inside storage should be in a cool,
dry, well ventilated, noncombustible location, away from all
possible sources of ignition. Separate from other chemicals,
particularly oxidizing gases, chlorine, bromine, iodine, and acids.
Avoid ingestion, inhalation, and contact with skin or eyes.
Other Precautions:

Exposure Controls

Respiratory Protection:Unless ventilation is adequate to keep
concentration below permissible exposure limit (PEL), wear NIOSH
approved ammonia chemical cartridge or canister full facepiece
chin-style respirators with an air-purification factor (APF=50). In
emergency or planned entry into unknown concentrations, use
self-contained breathing apparatus (SCBA) or any supplied-air full
facepiece chin-style respirators.
Ventilation:Local exhaust is essential. Spark-proof fans desirable with
mechanical ventilation. Ducts should be located at ceiling level
and lead upwards to the outside.
Eye Protection:Gas-tight chemical safety goggles must be worn if there
is a likelihood of exposure. Persons subject to ammonia exposure
must not wear contact lenses.
Other Protective Equipment: Rubber or synthetic chemical gloves and
boots should be worn as well as cotton clothing and underwear.
Rubber or synthetic chemical coats or aprons should be available,
an encapsulating chemical protective clothing garment is desirable
for heavy exposures. Eyewash fountain and safety shower should be
available in work area. The use of long sleeved clothing closed at
the neck is advised. Change if clothing becomes contaminated.
Supplemental Safety and Health

Chemical Properties

Boiling Pt:B.P. Text:-33.4° C; -28°F
Melt/Freeze Pt:M.P/F.P Text:Melting Point/Range: -77.7° C; -107.9°F
Vapor Pres:Vapor Density:0.6 (gas), <1 (aerosol)
Spec Gravity:0.68 @ -33.4° C; -28°F
pH:11.6 for 1.0 [email protected]°F
Solubility in Water:100%
Appearance and Odor:Colorless gas or liquid with extremely pungent odor
Physical State: Compressed Gas
Percent Volatiles by Volume:100%
Corrosion Rate:


Stability Indicator/Materials to Avoid:Stable
Avoid contact with oxidizing gases, chlorine, bromine, mineral
hypochlorite, iodine, halogens, calcium, and strong acids. Avoid
contact with copper, silver, zinc, and alloys of same. Mercury,
silver oxide can form explosive compounds.
Stability Condition to Avoid:Avoid all possible sources of ignition.
Heat will increase pressure in the storage tank.
Hazardous Decomposition Products:Combustion will generate oxides of
nitrogen. Intense heating of the gas, particularly in contact with
hot metallic surfaces, may cause decomposition of ammonia to
hydrogen and nitrogen.
Conditions to Avoid Polymerization:


Waste Disposal Methods:Consult Federal, State, or Local Authorities for
proper disposal procedures. If possible, allow spilled liquid
ammonia to evaporate, as it is too volatile to absorb. Diking will
contain the liquid and allow it to stabilize. Keep unprotected
personnel away from area until it is free of ammonia. Do not apply
water directly to ammonia liquid as this will cause boiling and


Toxicological Information:Oral LD50350 mg/kgRatATSDR 199196
mg/kgMouseEPA 1989

Other Information

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.


Ecological:Inhalation LC5019,770 ppmF RatEPA 198914,140 ppmM RatEPA
198917,401 ppmRatATSDR 1991


Transport Information:DOT Proper Shipping Name: Ammonia Anhydrous
Liquefied DOT Hazard Class/ I.D. No.: 2.2, UN1005


Federal Regulatory Information:Reportable Quantity: 100 Pounds (45.4
Kilograms) (19.43 Gals) Additional Description Requirement:
Inhalation Hazard According to the (UFC) Uniform Fire Code
Standard 79-3 (2000), the degree of Hazard is 3-3-0 in a confined
space. IDLH Value*: 300 ppm * The Immediately Dangerous to Life
and Health Value
State Regulatory Information: