Products
Monomethylamine water、Dimethylamine water、Trimethylamine water
These compounds are produced with methanol and ammonia as the raw materials, using the proprietary technologies that we have accumulated over many years.
All three methylamine species are gaseous at normal temperature, have ammonia-like odors, are inflammable, and are readily soluble in water. Mitsubishi Gas Chemical Trading, Inc., sells all three methylamines both in the anhydrous forms and as aqueous solutions.
| Other names | 40%m-MA | 50%d-MA | 30%t-MA |
|---|---|---|---|
| Single chemical substance or composite | Composite | Composite | Composite |
| Chemical formula | (CH3)NH2 | (CH3)2NH | (CH3)3N |
| Cas No. | Monomethylamine: 74-89-5, water: 7732-18-5 | Dimethylamine: 124-40-3, water: 7732-18-5 | Trimethylamine: 75-50-3, water: 7732-18-5 |
| Chemical Substances Control Law No. | (2)-129 | (2)-134 | (2)-140 |
| Industrial Safety and Health Act No. | (2)-129 | (2)-134 | (2)-140 |
Physical properties
| Product name | 40%m-MA | 50%d-MA | 30%t-MA |
|---|---|---|---|
| External appearance | Colorless, transparent liquid | Colorless, transparent liquid | Colorless, transparent liquid |
| Specific gravity | 0.902 (20/4°C) | 0.862 (20/4°C) | 0.916 (20/4°C) |
| Freezing point, melting point | -38°C (-36.4°F) | -46°C (-50.8°F) | 6°C (42.8°F) |
| Flash point, ignition point | Flash point: -10.8°C Ignition point: 430°C (monomethylamine) |
Flash point: -22.3°C Ignition point: 402°C (dimethylamine) |
Flash point: -19.3°C Ignition point: No data |
| Explosive limit | 4.95-20.75 (vol%) | 2.8-14.4 (vol%) | 2.0-11.6 (vol%) |
| Stability, reactivity | Stable under normal conditions. The aqueous solution is a strong base, and reacts violently with acids. It corrodes aluminum, copper and zinc. Decomposes on combustion, releasing nitrogen oxides and other toxic fumes. |
Stable under normal conditions. May form explosive substances when in contact with mercury. Decomposes on combustion, releasing toxic gases. Reacts violently with acids, and corrodes copper, zinc, copper and zinc alloys, and aluminum. Reacts with strong acids, chlorine, and nitrites. Attacks plastic, rubber, and covering materials. |
Decomposes on combustion, releasing nitrous oxide, which is a toxic gas. This is a strong base, reacts violently with acids, and corrodes aluminum, copper and zinc. Reacts violently with oxidizing agents, numerous other compounds, and mercury, forming compounds that are sensitive to shock. Reacts with nitrites and nitric acid, under certain conditions releasing nitrosamine, which is highly toxic. |
Relevant laws and regulations
| Product name | 40%m-MA | 50%d-MA | 30%t-MA |
|---|---|---|---|
| Industrial Safety and Health Act | Ignitable substance, chemical facilities | Ignitable substance, chemical facilities | Inflammable gas, chemical facilities |
| Fire Service Act | Class 4, Petroleum Class I, Water-soluble | Class 4, Petroleum Class I, Water-soluble | Class 4, Petroleum Class I, Water-soluble |
| Poisonous and Deleterious Substances Control Act | － | － | － |
| Ship Safety Act | Ignitable liquid | Ignitable liquid | Ignitable liquid |
| Civil Aeronautics Act | Ignitable liquid | Ignitable liquid | Ignitable liquid |
| Other principal relevant laws and regulations | Noxious liquid substance category C (Act on Prevention of Marine Pollution and Maritime Disasters) | Substances for which export permitted (Export Trade Control Order), noxious liquid substance category C (Act on Prevention of Marine Pollution and Maritime Disasters) | Offensive Odor Control Law (substance with offensive odor) |
Hazard category
40%m-MA
| Category name | Ignitable liquid |
|---|---|
| Hazard | Liquid that can readily be ignited. |
| Harmfulness | Intensely irritating on contact with skin or mucosa, and may cause chemical injuries. Repeated exposure results in symptoms including central nervous system paralysis, headache, anemia, increased blood pressure, and agitation. If high-concentration gas (vapor if 40%) is inhaled, it may cause pulmonary edema. |
50%d-MA
| Category name | Ignitable liquid |
|---|---|
| Hazard | Liquid that can readily be ignited. |
| Harmfulness | Intensely irritating on contact with skin or mucosa, and may cause chemical injuries. Repeated exposure results in symptoms including central nervous system paralysis, headache, anemia, increased blood pressure, and agitation. If high-concentration gas (vapor if 50%) is inhaled, it may cause pulmonary edema. |
30%t-MA
| Category name | Ignitable liquid |
|---|---|
| Hazard | Liquid that can readily be ignited. |
| Harmfulness | Intensely irritating on contact with skin or mucosa, and may cause chemical injuries. Repeated exposure results in symptoms including central nervous system paralysis, headache, anemia, increased blood pressure, and agitation. If high-concentration gas (vapor if 30%) is inhaled, it may cause pulmonary edema. |
GHS Label elements
40%m-MA
50%d-MA
30%t-MA
Principal uses
| 40%m-MA | Vulcanization accelerators, medicines, agricultural chemicals, photography chemicals, dyes |
|---|---|
| 50%d-MA | Textile treatment agents, macromolecular flocculants, surface-active agents |
| 30%t-MA | Resin cross-linking agents, medicines, agricultural chemicals, ion-exchange resins, choline chloride |
Product Specifications
40%m-MA
| Packaging/transport types | Tankers, drums, oil cans |
|---|---|
| Product composition specifications | Monomethylamine (%): 40.0 to 42.0 (gas chromatography, neutralization method) Dimethylamine (%): no higher than 0.1 (gas chromatography) Trimethylamine (%): no higher than 0.1 (gas chromatography) Ammonia (%): no higher than 0.0 (gas chromatography) |
50%d-MA
| Packaging/transport types | Tankers, drums, oil cans |
|---|---|
| Product composition specifications | Monomethylamine (%): no higher than 0.1 (gas chromatography) Dimethylamine (%): 50.0 to 52.0 (gas chromatography, neutralization method) Trimethylamine (%): no higher than 0.1 (gas chromatography) Ammonia (%): no higher than 0.0 (gas chromatography) |
30%t-MA
| Packaging/transport types | Tankers, drums, oil cans |
|---|---|
| Product composition specifications | Monomethylamine (%): no higher than 0.1 (gas chromatography) Dimethylamine (%): no higher than 0.3 (gas chromatography) Trimethylamine (%): 30.0 to 32.0 (gas chromatography, neutralization method) Ammonia (%): no higher than 0.0 (gas chromatography) |