MSDS

MATERIAL SAFETY DATA SHEET
Genetron
®
AZ-20 (R-410A)
MSDS Number: GTRN-0004 Page 4 of
7
Current Issue Date: December, 2005
EYE PROTECTION:
For normal conditions, wear safety glasses. Where there is reasonable probability of liquid contact, wear chemical safety
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 the PEL of 1,000 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 dose-
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
Difluoromethane
Pentafluoroethane
None
None
None
None
*1000 ppm TWA
(8hr)
**1000 ppm TWA
(8hr)
* = Limit established by AlliedSignal.
** = Workplace Environmental Exposure Level (AIHA).
*** = Biological Exposure Index (ACGIH).
OTHER EXPOSURE LIMITS FOR POTENTIAL DECOMPOSITION PRODUCTS:
Hydrogen Fluoride: ACGIH TLV: 2 ppm ceiling, 0.5ppm TLV-TWA
9. PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE: Clear, colorless liquid and vapor
PHYSICAL STATE:
Gas at ambient temperatures
MOLECULAR WEIGHT:
72.6
CHEMICAL FORMULA:
CH
2
F
2
CHF
2
CF
3
ODOR:
Faint ethereal odor
SPECIFIC GRAVITY (water = 1.0):
1.08 @ 21.1°C (70°F)
SOLUBILITY IN WATER (weight %):
Unknown
pH:
Neutral
BOILING POINT:
-48.5°C (-55.4°F)
FREEZING POINT:
Not Determined
VAPOR PRESSURE:
215.3 psia @ 70°F
490.2 psia @ 130°F
VAPOR DENSITY (air = 1.0):
3.0
EVAPORATION RATE:
>1 COMPARED TO: CCl
4
= 1