21. GASES & REFRIGERANTS

OXYGEN

OXYGEN (O2) is a gas heavier than air, colorless, odorless and taste free.

ARGON
ARGON (Ar) is a slightly heavier than air, colorless and odor free gas.

ACETYLENE

ACETYLENE (C2H2) is a slightly lighter than air, flammable, colorless gas, with a distinct garlic–like odor.

21.5 GAS FREON R-404A
21.6 GAS FREON R-407C

NITROGEN (99, 9%)

NITROGEN (N2) is a colorless, tasteless, and an odorless inert gas, slightly lighter than air; it is used for purging tanks and pipelines and for the removal of moisture from refrigeration systems.

21.7 GAS FREON R-410A
21.8 GAS FREON R-417A

ARGON - CO2 MIXTURES

ARGON - CO2 mixtures are very useful in MIG/MAG welding as shielding gases.

NITROGEN (99.999%)

NITROGEN (N2) is a colorless, tasteless, and an odorless inert gas, slightly lighter than air; it is used for purging tanks and pipelines and for the removal of moisture from refrigeration systems.

21.9 GAS FREON R-422D
21.10 GAS FREON 134A