LMP-103S propellant - ECAPS - SmallSat Catalog - Orbital Transports

LMP-103S Propellant

LMP-103S is an environmentally benign monopropellant based on the energetic material Ammonium DiNitramide (ADN). It offers a ≥30% density impulse improvement as compared to monopropellant hydrazine, while significantly reducing handling risk and costs, resulting in up to 72% cost reductions at launch site[1].

Propellant Blend:

  • ADN: 63%
  • Methanol: 18.4%
  • Ammonia: 4.6%
  • Water: 14%

Key Benefits:

  • Higher Performance vs Hydrazine
    • ISP >6%
    • Density >24%
    • Density Impulse >30%
  • Reduced Personal and Environmental Hazards
  • Simpler and Less Costly Handling an Transport

[1] Henry W. Mulkey, Green Propellant Loading Demonstration at U.S. Range (2016)

Specifications
Chemical Composition:
63.0% ADN, 18.4% Methanol, 4.6% Ammonia and 14.0% Water
Specific Impulse:
~253 s (theoretical)
Density:
1.24 kg/dm^3 (@ 20C)
Stability:
Long-term storable (>20 years, STANAG 4582)
Carcinogenic:
No
SCAPE required for handling:
NO
Freezing Point:
-90C (ADN saturation at -7C)
Normal Operation Temperatures:
10C to 50C
Exhaust gases:
H2O, CO2, N2, H2, CO
Shipping:
Class 1.4S, UN0481 (5L containers permitted on passenger aircraft)
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