How do I access the W-9 Form?

You can access the current W9 forms for either Praxair Distribution Inc. or Linde Gases US by clicking the appropriate button below. Praxair Distribution Inc. W-9 Form Linde Gases US W-9 Form

What is Argon?

Argon is colorless, odorless, tasteless and nontoxic. Argon (Ar) is a noble gas that comprises 0.93 % of the earth’s atmosphere. Argon provides an inert and clean environment free from nitrogen and oxygen for annealing and rolling metals and alloys. In the casting industry, argon is used to flush porosity from molten metals to eliminate defects in castings. In the metal fabrication industry, argon is used to create an optimized atmosphere during open arc welding. Argon is frequently blended with carbon dioxide (CO2), hydrogen (H2), Helium (He) or Oxygen (O2) to enhance the arc characteristics or to facilitate stable metal transfer in Gas Metal Arc Welding (GMAW or MIG).

Industrial Argon

Chemimcal Formula	Minimum Purity	Cylinder CGA Outlet	MSDS	CAS Number	UN Number	US DOT Name	US DOT Label	US DOT Class
Ar	99.995%	580 690 (greater than 3,000 psig)	P-4563	7440-37-1	1006	Argon, compressed	Nonflammable gas	2.2 Nonflammable Gas

Cylinder Style	Volume (ft³ / m³)	Pressure at 70^°F (21^°C) (psig/kPa)	Part Number
T	335/9.30	2,640/18,202	AR T
K	248/6.88	2,200/15,168	AR K

Industrial Argon, Cryogenic Liquid

Chemimcal Formula	Minimum Purity	Normal Boiling Point	Liquid Cylinder CGA Outlet	MSDS	CAS Number	UN Number	US DOT Name	US DOT Label	US DOT Class
Ar	99.997%	-302^°F (-185^°C)	295 (liquid)	P-4564	7440-37-1 (R)	1951	Argon, Refrigerated Liquid	Nonflammable Gas	2.2 Nonflammable Gas

Cylinder Style	Volume (ft³)	Pressure at 70^°F (21^°C) (psig)	Part Number
160 Liter	4,460	230	AR LC160-230
200 Liter	4,961	230	AR LC200-230
230 Liter	5,290	230	AR LC230-230
250 Liter	6,080	230	AR LC250-230
450 Liter Microbulk	12,478	350	AR LC450-350
1000 Liter Microbulk	28,225	350	AR LC1000-350
1500 Liter Microbulk	42,950	350	AR LC1500-350