Appendix
The data in this manual are not binding and may be changed by the manufacturer without notice. Reproduction of this manual, even partial, is strictly prohibited.
REFRIGERANTS SAFETY DATASHEET
Designation: R410A (50% Difluoromethane (R32); 50% Pentafluoroethane (R125).
INDICATION OF HAZARDS
Main hazards: Asphyxia.
Specific hazards: Rapid evaporation can cause frost burns.
FIRST AID PROCEDURES
General information: Do not attempt to administer liquids or solids to persons who have lost consciousness.
Inhalation: take the affected person out to the open air. Use oxygen or artificial respiration if
necessary.
Do not administer adrenaline or similar substances.
Contact with the eyes: Wash thoroughly with plenty of clean water for at least 15 minutes and seek medical
assistance.
Contact with the skin: Wash immediately in plenty of clean water.
Immediately remove all contaminated clothing.
FIRE PROTECTION MEASURES
Extinguishing media: Any.
Specific hazards: Pressure rise.
Specific methods: Cool containers with water spray.
MEASURES IN THE EVENT OF ACCIDENTAL ESCAPE
Individual precautions: Evacuate personnel to safe muster points.
Provide adequate ventilation.
Use personal protective equipment.
Environmental precautions: Evaporates.
Methods of cleaning: Evaporates.
HANDLING AND STORAGE
Handling
technical measures/precautions: Ensure the presence of sufficient ventilation and/or air extraction means in the
workplace.
recommendations for safe use: Do not breath fumes or aerosol.
Storage Close hermetically and store in a cool, dry and well-ventilated place.
Store in the original containers. Incompatible products: explosive materials,
inflammable materials, organic peroxide.
CONTROL OF INDIVIDUAL EXPOSURE/PROTECTION
Control parameters:
AEL (8-h and 12-h TWA) = 1000 ml/m
3
for each of the two components.
Respiratory protection: For first aid rescue and for maintenance work carried out inside tanks use a self-
contained respirator.
The vapours are heavier than air and can cause suffocation by replacing the oxygen
available for respiration.
Protection of the eyes: Safety spectacles.
Protection of the hands: Rubber gloves.
Hygiene measures: Do not smoke.
PHYSICAL AND CHEMICAL PROPERTIES
Colour: Colourless.
Odour: Faint.
Boiling point: -52.8 °C at atmospheric press.
Flash point: Non inflammable.
Relative density: 1.08 kg/l at 25 °C.
Solubility in water: Negligible.
STABILITY AND REACTIVITY
Stability: No reactivity if used with the relevant instructions.
Materials to avoid: Highly oxidising materials. Incompatible with magnesium, zinc, sodium, potassium and
aluminium.
Incompatibility is more critical if the metal is present in the form of powder or if
surfaces have been recently unprotected.
Hazardous decomposition by-
products:
These products are halogen compounds, hydrofluoric acid, carbon monoxides (CO,
CO2), carbonyl halides.
TOXICOLOGICAL INFORMATION
Acute toxicity: (R32) LC50/inhalation/4 hours/in rat >760 ml/l
(R125) LC50/inhalation/4 hours/in rat >3480 mg/l
Local effects: Concentrations significantly above the TLV can cause narcotic effects.
Inhalation of high concentrations of decomposition products can cause respiratory
insufficiency (pulmonary oedema).
Long term toxicity: No carcinogenic, teratogenic, or mutagenic effects observed in laboratory animals.
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