Name | Dimethylamine |
Synonyms | Dimethylamine N-Methylmethylamine N-methylmethanamine dimethylamine,anhydre Dimethylamine anhydrous dimethylamine,anhydrous N-methylmethanamine sulfate DiMethylaMine (~2.0 M in THF) DiMethylaMine, 2M solution in THF, AcroSeal DiMethylaMine, 2.0 M solution in THF, SpcSeal DiMethylaMine, 2.0 M solution in Methanol, SpcSeal DiMethylaMine, 2M solution in Methyl alcohol, AcroSeal |
CAS | 124-40-3 |
EINECS | 204-697-4 |
InChI | InChI=1/C2H7N/c1-3-2;1-5(2,3)4/h3H,1-2H3;(H2,1,2,3,4)/p-2 |
Molecular Formula | C2H7N |
Molar Mass | 45.08 |
Density | 0.89g/mLat 25°C |
Melting Point | −93°C(lit.) |
Boling Point | 7°C(lit.) |
Flash Point | 60°F |
Water Solubility | Miscible with water and most organic solvents. |
Solubility | very soluble in water (163 g/100 g water at 40°C); soluble in ethanol,ethyl ether, and many organic solvents |
Vapor Presure | 16.97 psi ( 55 °C) |
Vapor Density | 1.55 (vs air) |
Appearance | Solution |
Color | Clear slightly yellow |
Odor | Ammonical odour |
Exposure Limit | TLV-TWA 10 ppm (~18 mg/m3) (ACGIH,MSHA, and OSHA); IDLH 2000 ppm(NIOSH). |
Merck | 14,3228 |
BRN | 605257 |
pKa | 10.68(at 25℃) |
Storage Condition | Flammables area |
Stability | Stable. Generally used as a solution in water at concentrations up to around 40%. Extremely flammable in the pure form. Incompatible with strong oxidizing agents. |
Sensitive | Hygroscopic |
Explosive Limit | 14.4% |
Refractive Index | n20/D 1.37 |
Physical and Chemical Properties | Properties colorless flammable gas or liquid, high concentration or compression liquefaction, with a strong unpleasant ammonia odor, very low concentrations of fish oil odor. boiling point 6.9 ℃ relative density 0.654 refractive index 1.347 flash point -17.78 ℃ soluble in water, soluble in ethanol and ether. |
Use | For the production of drugs, dyes, pesticides, leather wool agent, rubber vulcanization accelerator, rocket propellant raw materials |
Risk Codes | R12 - Extremely Flammable R20 - Harmful by inhalation R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R34 - Causes burns R20/22 - Harmful by inhalation and if swallowed. R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R40 - Limited evidence of a carcinogenic effect R19 - May form explosive peroxides |
Safety Description | S3 - Keep in a cool place. S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S29 - Do not empty into drains. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S39 - Wear eye / face protection. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 2924 3/PG 2 |
WGK Germany | 2 |
RTECS | IP8750000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 29211100 |
Hazard Class | 3 |
Packing Group | II |
Toxicity | Acute oral LD50 for guinea pigs 340 mg/kg, mice 316 mg/kg, rats 698 mg/kg, rabbits 240 mg/kg (quoted, RTECS, 1985). |
is a colorless flammable gas or liquid, and has a strong unpleasant ammonia odor at a high concentration or compression liquefaction, and the odor of fish oil at a very low concentration. Soluble in water, soluble in ethanol and ether. Toxic.
methanol and ammonia are mixed in a certain proportion, and under a certain temperature and pressure, the active alumina is used as a catalyst to synthesize a mixture of one, two and three methylamine, and then heat exchange, condensation, deammoniation, extraction, dehydration, separation, dimethyl amine product. For details see monomethylamine.
This product is mainly used as rubber vulcanization accelerator, leather hair removal agent, medicine (antibiotic), pesticide (formamido, chlormeform, borhalon, etc.), textile industry solvent, dye, explosive, propellant and organic intermediates (such as dimethyl hydrazine, N,N Dimethyl Formamide) and other raw materials.