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Ammonia

NH3

DESCRIPTION: Ammonia (NH3) is a colorless, toxic, alkaline, slightly flammable gas with a pungent odor, irritating to eyes, skin and mucous membranes in high concentrations. Shipped as a liquefied gas under its own vapor pressure (111 psig @ 70 °F).

APPLICATION: Ammonia is used as a reactant gas in the deposition of silicon nitride layers. Ammonia is often used in conjunction with dichlorosilane or silane.

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AMMONIA
GRADE ELECTRONIC NITRIDE
Critical Assay 99.999% 99.9995%
Meets SEMI Specification - SEMI C3.12-94
Nitrogen < 5 ppm < 1 ppm
Oxygen < 2 ppm < 1 ppm
Total Hydrocarbons (as CH4) < 1 ppm < 1 ppm
Carbon Monoxide < 1 ppm < 1 ppm
Water < 5 ppm < 1 ppm
Hydrogen < 1 ppm < 1 ppm
Valve Material 316L SS 316L SS
Valve Design Diaphragm Diaphragm
CGA/DISS Connection 660 660/720

 

Molecular Weight:
17.03
Specific Volume:
22.7cf/lb @ NTP
Boiling Point:
-28.2°F @ 1 atm
CAS No.:
7664-41-7
Hazards:
Inhalation, Skin and Eye Contact
Safety Data: LC50 Rat: 7.338 ppm
ACGIH - TLV: 25 ppm
NIOSH IDLH: 300 ppm
NIOSH STEL: 35 ppm
Vapor Pressure Data:
  61.8 psia @ 32°F
125.7 psia @ 70°F

 

AMMONIA          
Cylinder Data/Size A AL B C LB
Internal Volume (liters): 44 30 17 7 0.4
Contents (pounds): 50 30 15 5 0.5
Phase Break @ 70°F (lbs): 0.59 0.39 0.23 0.09 0.01
Pressure @ 70°F (psig): 111 111 111 111 111
RFO Size (inches): 0.010 0.014 0.020 0.030 0.040
Maximum Flow (scf/h): 10.1 19.9 40.5 88.9 162.1
Pressure (psig): 125.7      
DOT Label: Green, Nonflammable Gas UN Number: UN 1005  
DOT Class: 2.2 Cylinder: Aluminum or steel alloy  
Recommended OmniGas® Panels: Purgeable panel for corrosive gases - Model No. 58PA200SVA-H - please inquire
Shelf Life: 2 years

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