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Technical Data Sheet
Monomethylamine 50% aqueous solution (MMA50)

Chemical Synonym
  • Methylamine; Methanamine; Aminomethane; Carbinamine; Mercurialin; Methylaminen; Metilamine; Metyloamina; MMA
  • Intermediates

Product Description

Monomethylamine 50% aqueous solution (MMA50) is a versatile building block that is used in a wide variety of applications. We produce a number of MMA derivatives like NMP, metam sodium, MMEA and MDEA.

For other applications we sell the MMA in the free market. We have identified over 70 different applications for MMA, in pharmaceuticals, agrochemicals, surfactants, explosives,…

MMA is available in 2 forms :

  • as anhydrous liquified gas, MMA 100%
  • as aqueous solution, MMA 40, 50 and 60%

We operate our own container fleet for MMA 100%, to guarantee a high quality service.


Boiling point of an aqueous solution of monomethylamine, at atmospheric pressure, as a function of % by weight:

Density of anhydrous monomethylamine in the liquid state, as a function of temperature:

Density of aqueous solutions of monomethylamine, as a function of % by weight:

Heat of vaporization of anhydrous monomethylamine, as a function of temperature:

Specific heat of anhydrous monomethylamine, as a function of temperature:

a. in the vapour state:

b. in the liquid state:

Vapour pressure of anhydrous monomethylamine and aqueous solutions, as a function of temperature:

Typical Properties

PropertyTypical Value, Units
Molecular FormulaCH5N
Molecular Weight31.06 g/mol
Boiling Point38.3 °C (101 °F)
     @ 20°C (68°F)0.867 g/cm3
Vapor Pressure 
     @ 50°C (122°F)210 kPa

  • Bulk
* Packaging in function of transport regulations of the destination country.


Monomethylamine is an extremely flammable and corrosive product which should be stored in a well-ventilated area protected from fire risks (earthed tanks, no smoking, etc).

Delivery from containers and tankers should comply with our procedures which are available on request from our plant.

Both the gaseous product and the solutions are hazardous material. At a high airborne concentration the odour of ammonia predominates and monomethylamine acts as an asphyxiating gas.

At lower concentrations monomethylamine induces severe irritation and damage to the eyes and respiratory tract; skin contact causes burns.

The slightest leak is evident from the characteristic fishy odour, which is detectable at < 100 ppb by volume.

The storage area must be equipped with safety showers and eye baths whose locations should be familiar to the operators.

It is especially recommended that residues be burnt in an incinerator at > 800°C.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

2/28/2018 11:35:39 AM