MethoxyPropyl Amine
MethoxyPropyl Amine is used for several application such as intermediate in the production of floor waxes, water treating chemicals, emulsifiers, in waterbased paints, as corrosion inhibitor, textile additive, in the production of polyamide resins a
MethoxyPropyl Amine is used for several application such as intermediate in the production of floor waxes, water treating chemicals, emulsifiers, in waterbased paints, as corrosion inhibitor, textile additive, in the production of polyamide resins and other products.
Certain physical properties of MOPA are summarized below;
Physical/Chemical Property Result
Molecular weight 89.1
Boiling point, 760 mm Hg, °C 116
Freezing point, °C -76
Vapor pressure, mmHg, 20°C 6
Density, g/ml, 20°C 0.87
Water solubility (%) >10
Flash point, °C 27 pH 11 A
3-Methoxypropylamine is a liquid C3-Aminoether. 3-Methoxypropylamine is used in steam systems as a corrosion inhibitor and to make soaps and emulsions in floor coatings, textile finishes, and paints.
3-Methoxypropylamine (MOPA) is used mainly as a corrosion inhibitor in water treatment systems.
Methoxypropylamine (MOPA) is a clear, colorless slightly viscous liquid with a typical ammonialike odor. It is completely soluble in water.
Dosage
When used in combination with hydrazine or another oxygen corrosion inhibitor, the compositions should contain on an active basis from about 1% to about 99% methoxypropylamine and from about 0.1% to about 50%, preferably about 1% to about 15%, of the oxygen corrosion inhibitor.
The compositions of 3-Methoxypropylamine may be fed to the steam condensate system being treated by conventional liquid feeding means or may be fed to the boiler feedwater or directly to the steam supply lines.
Industrial Usage
Synonyms:1-Amino-3-methoxypropane; 3-Aminopropyl methyl ether; 3-MPA; 3-Methoxy-1-propanamine; 3-Methoxy-n-propylamine; 3-Methyoxypropylamine; Propanolamine methyl ether; gamma-Methoxypropylamine; 1-Propanamine, 3-methoxy-; Propylamine, 3-methoxy-; [ChemIDplus] UN2734
CAS names: 1-Propanamine, 3-methoxy-
IUPAC names
3-methoxypropan-1-amine
3-Methoxypropylamine
3-methoxypropylamine
3-Methoxypropylamine (MOPA)
Methoxypropylamine
MOPA
Trade names
.gamma.-Methoxypropylamine
1-Amino-3-methoxypropane
1-Propanamine, 3-methoxy- (9CI)
3-Aminopropyl methyl ether
3-Methoxy-1-propanamine
3-Methoxy-n-propylamine
3-Methoxypropylamin
3-Methoxypropylamine
Propanolamine methyl ether
Propylamine, 3-methoxy- (6CI, 7CI, 8CI)
Remarks
Advantages of 3-Methoxypropylamine over Cyclohexylamine and Morpholine:
Neutralizing amines such as cyclohexylamine and morpholine have been used but they have several disadvantages.
For example, cyclohexylamine has a high distribution ratio and accordingly, substantial cyclohexylamine escapes the system through the deaerator vent.
Morpholine, on the other hand, has a low basicity value which means that more morpholine is required to attain high pH in the condensate system and it also has a very low distribution ratio which means that substantial amounts are lost via blowdown.
The neutralizing amine 3-Methoxypropylamine overcomes the above-mentioned disadvantages of cyclohexylamine and morpholine.
3-Methoxypropylamine has a very desirable distribution ratio and a fairly high basicity value.
3-Methoxypropylamine may be used alone or in combination with an oxygen corrosion inhibitor such as hydrazine.
In use, concentrations of 0.1 to 1000 mg/l, and preferably 1 to 100 mg/l, should be maintained in the steam condensate system.
When used in combination with hydrazine or another oxygen corrosion inhibitor, the compositions should contain on an active basis from about 1% to about 99% methoxypropylamine and from about 0.1% to about 50%, preferably about 1% to about 15%, of the oxygen corrosion inhibitor.
The compositions of 3-Methoxypropylamine may be fed to the steam condensate system being treated by conventional liquid feeding means or may be fed to the boiler feedwater or directly to the steam supply lines.