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Properties          Application Areas

Appearance It is available as anhydrous (liquefied gas under pressure) & 40 % , 45 % & 50% solution. Clear, colourless liquid with strong ammonical odour.
Physical Properties
Empirical Formula CH5N
Structural Formula CH3NH2
Molecular Wt. 31.06
  For Anhydrous For 40% Soln. For 45% Soln.
Sp. gravity at 20°C 0.65-0.66 0.89-0.90 0.89-0.90
Boiling point -6.3°C 48°C 44°C
Freezing point below -80°C below -30°C below -30°C
Flash point (closed cup) - below -18°C below -18°C
Solubility in water Soluble Soluble Soluble
Content Unit Anhydrous 40% Solution     45% Solution     50% Solution    
Monomethylamine % 99.50min 40.00min     45.00min     50.00min    
Water % 00.20max 60.00max     55.00max     50.00max    
Ammonia % 00.05max 00.03max     0.03max     0.03max    
Other Amines / NOI % 00.30max 00.20max     00.20max     00.20max    
IMDG Class
MMA (Anhydrous) Class 2
MMA (Solution)    Class 3
UN Code No. MMA (Anhydrous) 1061
MMA (Solution)     1235
CAS No. 74-89-5

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