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Special Catalysts for Hydrazine Decomposition

Catalysts for hydrazine decomposition have been produced by Heraeus for several decades. Since taking over the technology and production systems of Solvay, Heraeus offers a special Ir catalyst for space applications.
Engines for space probes and satellites must function with special precision and reliability and meet the highest standards of quality. They represent the essential feature of single-fuel thrusters that develop their thrust by the decomposition of hydrazine or hydrogen peroxide.

Catalyst Type H-KC12GA

Chemical composition: Ir/Alumina
Ir-content: approx. 32 %
Form: granular
Monopropellant Thruster
ID-No. ASTM-No. Grain Size (mm)
CAT0 25 - 20 0,71 - 0,85
CAT1 30 - 20 0,60 - 0,85
CAT2 20 - 18 0,85 - 1,00
CAT3 18 - 14 1,00 - 1,40
CAT4 14 - 10 1,40 - 2,00
CAT5 18 - 16 1,00 - 1,18
CAT6 35 - 30 0,50 - 0,60
CAT7 20 - 16 0,85 - 1,18
CAT8 30 - 25 0,60 - 0,71
CAT9 12 - 8 1,70 - 2,36