MATERIAL SAFETY DATA SHEET
Company Information
Company Information: TULSTAR PRODUCTS, INC.
5510 S. Lewis Ave.
Tulsa, OK 74105
Phone Number: (918) 749-9060
Fax Number: (918) 747-1444
Email Address: tulstar@tulstar.com
Emergency Phone Number: CHEMTREC 800-424-9300 (24 hours)
Identity Information
Product Name: R 404a
Product Use: Refrigerant. High performance replacement for R22 and R502.
Ingredients Information
Ingredient Name CAS Number Weight %
Pentafluoroethane (HFC 125) 354-33-6 44
1,1,1-Trifluoroethane (HFC 143a) 420-46-2 52
1,1,1,2-Tetrafluoroethane (HFC 134a) 811-97-2 4
Physical/Chemical Characteristics
Appearance: Clear, colorless liquid and vapor
Odor: Faint ethereal odor
Boiling Point: -54癋,-47.8癈
Freezing Point: Not determined
Vapor Pressure (MM Hg/70 F): 182.9
Vapor Density (Air=l): 3.43
Specific Gravity: 1.08
Physical State: Gas at ambient temperatures
Molecular Weight: 120
Chemical Formula: CF3CHF2; CH3CF3; CH2FCF3
Solubility in Water (weight %): Unknown
pH: Neutral
Evaporation Rate: >1
% Volatiles: 100
Flash Point: Not applicable
Fire Fighting Measures
Flammable Properties:
Flash Point- Gas, not applicable per DOT regulations
Flash Point Method- Not applicable
Autoignition Temperature- <750癈
Upper Flame Limit- None. Based on ASHRAE Standard 34 with match ignition
Lower Flame Limit- None. Based on ASHRAE Standard 34 with match ignition
Flame Propagation Rate- Not applicable
OSHA Flammability Class- Not applicable
Extinguishing Media: Use any standard agent ?choose the one most appropriate for type of
surrounding fire (material itself is not flammable).
Unusual Fire & Explosion Hazards: R 404a is not flammable at ambient temperatures and atmospheric pressure.
However, this material will become combustible when mixed with air under
pressure and exposed to strong ignition sources. Contact with certain reactive
metals may result in formation of explosive or exothermic reactions under
specific conditions (e.g. very high temperatures and/or appropriate pressures).
Special Fire Fighting Precautions: Firefighters should wear self-contained, NIOSH-approved breathing apparatus
for protection against possible toxic decomposition products. Proper eye and
skin protection should be provided. Use water spray to keep fire-exposed
containers cool.
Reactivity Data
Stability: Yes
Cond To Avoid (Stability): Do not mix with oxygen or air above atmospheric pressure. Any source of high
temperature, such as lighted cigarettes, flames, hot spots or welding may yield toxic
and/or corrosive decomposition products.
Incompatibilities: (Under specific conditions: e.g. very high temperatures and/or appropriate pressures) ?br>
Freshly abraded aluminum surfaces (may cause strong exothermic reaction). Chemically
active metals: potassium, calcium, powdered aluminum, magnesium and zinc.
Hazardous Decomp Products: Halogens, halogen acids and possibly carbonyl halides.
Hazardous Poly Occur: Will not occur.
Hazards Identification
EMERGENCY OVERVIEW: Colorless, volatile liquid with ethereal and faint sweetish odor. Nonflammable material.
Overexposure may cause dizziness and loss of concentration. At higher levels, CNS
depression and cardiac arrhythmia may result from exposure. Vapors displace air and
can cause asphyxiation in confined spaces. At higher temperatures, (>250癈),
decomposition products may include Hydrofluoric Acid (HF) and carbonyl halides such
as phosgene.
Potential Health Hazards:
Skin- Irritation would result from a defatting action on tissue. Liquid contact could cause frostbite.
Eyes- Liquid contact can cause severe irritation and frostbite. Mist may irritate.
Inhalation- R 404a is low in acute toxicity in animals. When oxygen levels in air are reduced to 12 ?14% by
displacement, symptoms of asphyxiation, loss of coordination, increased pulse rate and deeper
respiration will occur. At high levels, cardiac arrhythmia may occur.
Ingestion: Ingestion is unlikely because of the low boiling point of the material. Should it occur, discomfort
in the gastrointestinal tract from rapid evaporation of the material and consequent evolution of gas
would result. Some effects of inhalation and skin exposure would be expected.
Delayed Effects: None known
Accidental Release Measures
In Case of Spill or Other Releases: (Always wear recommended personal protective equipment.) Evacuate unprotected
personnel. Protected personnel should remove ignition sources and shut off leak, if
without risk, and provide ventilation. Unprotected personnel should not return until air
has been tested and determined safe, including low-lying areas. Spills and releases may
have to be reported to Federal and/or local authorities.
Handling & Storage
Normal Handling: Avoid breathing vapors and liquid contact with eyes, skin or clothing. Do not puncture or drop
cylinders, expose them to open flame or excessive heat. Use authorized cylinders only. Follow
standard safety precautions for handling and use of compress gas cylinders. R 404a should not be
mixed with air above atmospheric pressure for leak testing or any other purpose.
Storage: Store in a cool, well-ventilated area of low fire risk and out of direct sunlight. Protect cylinder and
its fittings from physical damage. Storage in subsurface locations should be avoided. Close valve
tightly after use and when empty. If container temperature exceeds boiling point, cool the
container before opening.
Control Measures
Engineering Controls: Provide local ventilation at filling zones and areas where leakage is probable. Mechanical
(general) ventilation may be adequate for other operating and storage areas.
Personal Protective Equipment:
Skin Protection- Skin contact with refrigerant may cause frostbite. General work clothing and gloves (leather)
should provide adequate protection. If prolonged contact with the liquid or gas in anticipated,
insulated gloves constructed of PVA, neoprene or butyl rubber should be used. Any contaminated
clothing should be promptly removed and washed before reuse.
Eye Protection- For normal conditions, wear safety glasses. Where there is reasonable probability of liquid
contact, wear splash-proof goggles.
Respiratory Protection- None generally required for adequately ventilated work situations. For accidental release
or non-ventilated situations, or release into confined space, where the concentration may
be above FEL of 1000 ppm, use a self-contained, NIOSH-approved breathing apparatus
or supplied air respirator. For escape: use the former or a NIOSH-approved gas mask
with organic vapor canister.
Additional Recommendations- Where contact with liquid is likely, such as in a spill or leak, impervious boots
and clothing should be worn. High does-level warning signs are recommended
for areas of principle exposure. Provide eyewash stations and quick-drench
shower facilities at convenient locations. For tank cleaning operations, see
OSHA regulations, 29 CFR 1910.132 and 29 CFR 1910.133.
Exposure Guidelines:
Ingredient Name ACGIH TLV OSHA PEL OTHER LIMIT
Pentafluoroethane None None *1000 ppm TWA (8hr)
1,1,1-Trifluoroethane None None *1000 ppm TWA (8hr)
1,1,1,2-Tetrafluoroethane None None *1000 ppm TWA (8hr)
* Workplace Environmental Exposure Level (AIHA)
Other exposure limits for potential decomposition products- Hydrogen Fluoride: ACGIH TLV- 3 ppm ceiling
First Aid Measures
Skin: Promptly flush skin with water until all chemical is removed. If there is evidence of frostbite, bathe (do not rub)
with lukewarm (not hot) water. If water is not available, cover with a clean, soft cloth or similar covering. Get
medical attention if symptoms persist.
Eyes: Immediately flush eyes with large amounts of water for at least 15 minutes, (in case of frostbite water should be
lukewarm, not hot) lifting eyelids occasionally to facilitate irrigation. Get medical attention if symptoms persist.
Inhalation: Immediately remove patient to fresh air. If breathing has stopped, give artificial respiration. Use oxygen
as required, provided a qualified operator is available. Do not give epinephrine (adrenaline). Get medical
attention immediately.
Ingestion: Ingestion is unlikely because of the physical properties and is not expected to be hazardous. Do not induce
vomiting unless instructed to do so by a physician.
Advice to Physician: Because of possible disturbances of cardiac rhythm, catecholamine drugs such as epinephrine,
should be used with special caution and only in situations of emergency life support. Treatment of
overexposure should be directed at the control of symptoms and the clinical conditions.
Toxicological Information
Immediate (Acute) Effects:
HFC 125- LC50 = 4 hr (rat) > 800,000 ppm
Cardiac Sensitization threshold (dog) 75,000 ppm
HFC 143a- LC50 = 4 hr (rat) > 540,000 ppm
Cardiac Sensitization threshold (dog) > 250,00 ppm
HFC 134a- LC50 = 4 hr (rat) > 500,00 ppm
Cardiac Sensitization threshold (dog) > 80,000 ppm
Delayed (Subchronic & Chronic) Effects:
HFC 125- Teratogenic NOEL (rat & rabbit) 50.000 ppm
Subchronic inhalation (rat) NOEL =50.000 ppm
Chronic NOEL 10,000 ppm
HFC 143a- Teratogenic NOEL (rat & rabbit) 50.000 ppm
Subchronic inhalation (rat) NOEL =50.000 ppm
HFC 134a- Teratogenic NOEL (rat & rabbit) 40.000 ppm
Subchronic inhalation (rat) NOEL 50.000 ppm
Chronic NOEL 10,000 ppm
Other Data: HCF 125, HCF 134a are not active in four genetic studies.
HCF 143a is not active in two genetic studies.
Ecological Information
Degradability (BOD): R 404a is a gas at room temperature; therefore, it is unlikely to remain in water.
Octanol Water Partition Coefficient: Unknown for mixture.
Disposal Considerations
RCRA:
Is the unused product a RCRA hazardous waste if discarded? Not a hazardous waste
If yes, the RCRA ID number is: Not applicable
Other Disposal Considerations: Disposal must comply with federal, state, and local disposal or discharge laws. R 404a is
subject to U.S. Environmental Protection Agency Clean Air Act Regulations Section 608
in 40 CFR Part 82 regarding refrigerant recycling. The information offered here is for the
product shipped. Use and/or alterations to the product such as mixing with other
materials may significantly change the characteristics of the material and alter the RCRA
classification and the proper disposal method.
Transport Information
US DOT Hazard Class:
US DOT Proper Shipping Name: Refrigerant gas R 404a
US DOT Hazard Class: 2.2
US DOT Packing Group: Not applicable
US DOT ID Number: UN 3337
Regulatory Information
Toxic Substances Control Act (TSCA):
TSCA Inventory Status- Components listed on the TSCA inventory
Other TSCA Issues- None
SARA Title III/CERCLA:
"Reportable Quantities" (RQs) and/or "Threshold Planning Quantities" (TPDs) exist for the following ingredients.
Ingredient Name SARA/CERCLA RQ (lb.) SARA EHS TPQ (lb.)
No ingredients listed in this section
Spills or released resulting in the loss of any ingredient at or above its RQ requires immediate notification to the
Nation Response Center 800-424-8802 and to your Local Emergency Planning Committee.
Section 311 Hazard Class: Immediate Pressure
SARA 313 Toxic Chemicals: The following ingredients are SARA 313 "Toxic Chemicals".
Ingredient Name Comment
No ingredients listed in this section.
State Right-to-Know: In addition to the ingredients found, the following are listed for state-to-know purposes.
Ingredient Name Weight % Comment
No ingredient listed in this section
Additional Regulatory Information: R 404a is subject to U.S. Environmental Protection Agency Clean Air Act Regulations at
40 CFR Part 82.
Warning- Contains pentafluoroethane (HFC 125), 1,1,1,-trifluoroethane, tetrafluoroethane, greenhouse gases
which may contribute to global warming. Do not vent to the atmosphere. To comply
with provisions of the U.S. Clean Air Act, any residual must be recovered.
WHMIS Classification (Canada): This product has been evaluated in accordance with the hazard criteria of the CPR and
the MSDS contains all the information required by the CPR.
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