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Dimethylamine(CAS#124-40-3)

Chemical Property:

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

Product Detail

Product Tags

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).

 

Introduction

Dimethylamine is a colorless gas with an ammonia odor. The following is an introduction to the properties, uses, preparation methods and safety information of dimethylamine:Quality:Appearance: colorless gas, soluble in water, can react with inorganic acids and inorganic bases.Odor: Similar to ammonia, it is highly irritating and corrosive.Stability: Relatively stable and not easy to decompose at room temperature.Use:Industrial use: Dimethylamine is mainly used as a solvent and extractant for the synthesis of dyes, resins, softeners and chemical intermediates, among others.Preparation method:Dimethylamine can be prepared by the catalytic reaction of isopropylamine and formaldehyde, and the isopropyl alcohol produced in the reaction is further reacted to form dimethylamine.Another preparation method is through the reaction of ammonia and formaldehyde to produce a condensate containing dimethylamine, which is then hydrolyzed to obtain dimethylamine by dehydration acidification.Safety Information:Dimethylamine is irritating and corrosive, avoiding contact with skin, eyes, and mucous membranes.Avoid inhaling the smell of dimethylamine as it is more irritating.When using dimethylamine, appropriate protective equipment such as gloves, protective glasses and goggles should be worn.A well-ventilated environment should be maintained when storing and handling dimethylamine.


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