Amines
REACH
Lauryldimethylamine
CAS Number
112-18-5
EC Number
203-943-8
Abbreviation
LDMA
What is Lauryldimethylamine?
Lauryldimethylamine (CAS 112-18-5), also known as LDMA, is a long-chain tertiary amine used as a chemical intermediate, emulsifier, and surface-active agent.
Where is Lauryldimethylamine used?
- Personal care: precursor to conditioning surfactants and foam boosters for shampoos, conditioners, and liquid cleansers
- Coatings and adhesives: curing catalyst for epoxy systems and wetting agent to improve substrate adhesion
- Industrial process fluids and metalworking: corrosion inhibitor and emulsification aid
- Sealants and elastomers: stabilizer protecting polymer systems during processing and storage
- Its C12 amine structure serves as a building block for quaternary ammonium compounds, amine oxides, and betaines.
Commercial specifications
- Purity typically 95% or higher, depending on supplier specification
- Bulk quantities in drums and IBC totes
- Documentation commonly provided to support sourcing requirements
Other Names (Synonyms)
N,N-Dimethyl-1-dodecanamine|N,N-Dimethyldodecylamine|Antioxidant DDA|N,N-Dimethyllaurylamine|Barlene 125|N-Dodecyldimethylamine|DDA (antioxidant)|N-Lauryldimethylamine|LDMA
What are the physical properties of Lauryldimethylamine?
Melting Point 22 °C
Boiling Point 145-150 °C @ Press: 20 Torr
Density 0.787 g/mL at 20 °C(lit.)
Flash Point >230 °F
Appearance Liquid
Color Clear
Form Liquid
Water Solubility Negligible
Vapor Pressure <129 mm Hg ( 21 °C)
Refractive Index n 20/D 1.4375(lit.)
Log P 1.3-6.91 at 20℃ and pH7.1-8.8
How is Lauryldimethylamine classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS08· Health Hazard
Hazard Statements
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
H335 May cause respiratory irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Lauryldimethylamine?
HS Code 29211990
UN Number 2735
ADR Class 8
Packing Group II
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 2