MMH

MMH or Monomethylhydrazine (CH3NHNH2) is a storable liquid fuel that found favor in the United States for use in orbital spacecraft engines. Its advantages in comparison to UDMH are higher density and slightly higher performance.

Reference Points

MMH == MonoMethylHydrazine

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Tref Pref SG Cp dHvap Visc Cond Surf
SourceRpsiag/mlBTU/lbm-RBTU/lbmpoiseBTU/hr-ft-Rlbf/in
RocketProps527.714.70.87980.700377.08.449e-030.14421.959e-04
AFRPL-TR-69-149536.414.70.87020.700376.97.750e-030.14311.932e-04
RefProp527.70.70.87560.689384.15.235e-030.14371.942e-04
Aerojet527.714.70.87980.700377.08.454e-030.1442---
Vandenberg527.714.70.8749---391.1---0.1438---

Fluid Properties

MMH == MonoMethylHydrazine

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MolWt Tc Pc SGc Zc Tnbp Tmelt omega
Sourceg/gmoleRpsiag/ml(-)RR(-)
RocketProps46.0721053.71195.00.29620.2634649.5397.40.28680
AFRPL-TR-69-14946.0721053.01195.00.29000.2692649.4397.4---
RefProp46.0721036.81046.20.28470.2438649.0397.50.30081
Aerojet46.0721053.71195.00.29620.2634649.5397.40.28423
Vandenberg46.0721020.61210.90.17000.4801649.2397.40.42500

Vapor Pressure

_images/MMH_Psat.png


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Density

_images/MMH_SG.png


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Heat Capacity

_images/MMH_Cp.png


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Viscosity

_images/MMH_Visc.png


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Heat of Vaporization

_images/MMH_Hvap.png


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Thermal Conductivity

_images/MMH_Cond.png


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Surface Tension

_images/MMH_Surf.png


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