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Phosphine 5.0

  

Purity, %

> 99,999
  
  
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Impurities Phosphine 5.0, ppm:
H2O1
O21
N23
CO1
CO21
HC2
AsH32


The percentages indicated in conjuction with purities are mole percents (ideal volume percentages)


Delivery forms: Phosphine 5.0



Capacity, liter

Vapor pressure at 20°C, bar

filling quantity, kg
 
Steel cylinder 2 34,6 0,3
Steel cylinder 10 34,6 1


Conversion factors Phosphine
m³ gas
(15 °C, 1 bar)
Litre
liquid at Ts
kg
11,9351,432
0,51710,74
0,6981,3511



Identification Phosphine 5.0
Cylinder shoulder color: Yellow RAL 1018
Label: Phosphine 5.0
Valve outlet:
W 21.80 x 1/14 LH, DIN 477 No. 1


Properties Phosphine
Under pressure liquified gas, highly flammable, environmentally harmful, caustic, highly toxic, pyrophoric

 highly environmentally caustic highly  
MAK value:0.1 ppm
Chemical symbol:PH3
Molar mass:

33.998 g/mol

Critical temperature:325.05 K (51.9 °C)
Boiling point
at 1,013 bar (Ts):
185.4 K (-87.77 °C)
Relative density at 15°C, 1 bar (dryair = 1): 1.180

Applications Phosphine 5.0
  • doping of silicon per epitaxy, diffusion oder ion implantation. For this purpose mixtures with H2, Ar, He or N2 are preferably used (dopant gas mixtures)
  • doping of Si and SiO2 during deposition (CVD)
  • manufacturing of GaP, GaAsP or InP semiconductors



Mixtures of Phosphine with other gases in defined compositions.



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