Ore flotation collecting
Protonated dodecylammonium ion adsorbs on negatively charged silica and quartz surfaces, making them hydrophobic so air bubbles carry them to the froth layer.
DDA + H⁺ → C₁₂H₂₅NH₃⁺ (collector)
1-Dodecanamine · Laurylamine · ≥ 99% commercial grade, LR and AR grades
Dodecylamine is a primary aliphatic amine derived from the C12 fatty acid chain — a straight twelve-carbon chain with a terminal amino group. It is the workhorse of fatty-amine chemistry: an ore flotation collector, a corrosion inhibitor, an emulsifier intermediate, and a building block for quaternary ammonium compounds, amine oxides and textile auxiliaries. Chelora Amines supplies dodecylamine worldwide to mining, agrochemical, personal care, coatings and specialty chemical industries across Asia, the Middle East, Africa, Europe and the Americas, with a batch-wise COA and SDS on every dispatch.
144.13 + 27.22 + 14.01 = 185.35 g/mol
Dodecylamine, also called laurylamine or 1-dodecanamine, is a straight-chain primary amine derived from lauric acid — the dominant fatty acid in coconut oil. Its C12 chain sits at the intersection of surface activity and reactivity: long enough to anchor to surfaces and self-assemble at interfaces, short enough to remain liquid near room temperature and to dissolve in organic process streams.
At room temperature it is a waxy off-white solid melting at around 27–29 °C, becoming a mobile liquid just above that. It has a characteristic amine odour and is insoluble in water but freely soluble in alcohols, esters, and aromatic and aliphatic solvents. Its flash point is around 104 °C — it is combustible but not classified as flammable.
Dodecylamine is made by reductive amination of dodecanal or by the reduction of dodecanenitrile derived from lauric acid. The primary amine content, colour, and related secondary and tertiary amine levels are the key quality parameters for downstream processes.
| Chemical name | 1-Dodecanamine (Dodecylamine, Laurylamine) |
| Common synonyms | DDA, laurylamine, 1-aminododecane, n-dodecylamine, n-laurylamine |
| CAS number | 124-22-2 |
| EC / EINECS number | 204-690-6 |
| HS / HSN code | 2921 19 (acyclic monoamines and their derivatives; HSN 2921 19 on Indian invoices) |
| Molecular formula | C₁₂H₂₇N (CH₃(CH₂)₁₁NH₂) |
| Molecular weight | 185.35 g/mol |
| Appearance | Off-white to white waxy solid at room temperature; clear liquid above ~29 °C |
| Odour | Characteristic amine odour |
| Melting point | About 27–29 °C |
| Boiling point | About 259 °C at atmospheric pressure |
| Density | About 0.801 g/cm³ at 30 °C (liquid) |
| Solubility in water | Practically insoluble; soluble in common organic solvents |
| Flash point | About 104 °C (closed cup) — combustible liquid |
| UN number | UN 2733, Amines, flammable, corrosive, n.o.s., Class 8, subsidiary risk 3, Packing Group II |
Figures are typical literature values for orientation. Values for the material you order are stated on its Certificate of Analysis and Safety Data Sheet.
A primary amino group and a C12 hydrophobic tail explain what DDA is used for: anchoring to surfaces, reacting at the nitrogen, and assembling at water–oil interfaces.
Protonated dodecylammonium ion adsorbs on negatively charged silica and quartz surfaces, making them hydrophobic so air bubbles carry them to the froth layer.
DDA + H⁺ → C₁₂H₂₅NH₃⁺ (collector)Alkylation of the nitrogen gives dodecyltrimethylammonium, benzalkonium and other quats used as fabric softeners, biocides and phase-transfer catalysts.
RNH₂ + 3 CH₃X → RN⁺(CH₃)₃ X⁻Reacts with fatty acids, acid chlorides and esters to give dodecyl amides — building blocks for waxes, lubricants and release agents.
RNH₂ + R′COOH → R′CONHR + H₂OCondenses with aldehydes and ketones to give imines — intermediates for agrochemicals, corrosion inhibitors and resin curatives.
RNH₂ + R′CHO → RN=CHR′ + H₂OReacts with ethylene oxide to give ethoxylated dodecylamine — a nonionic to cationic surfactant used in emulsification, wetting and antistatic formulations.
RNH₂ + n EO → RN(CH₂CH₂OH)₂The amine anchor binds to metal oxide surfaces while the C12 tail repels water — forming a protective monolayer in oilfield and water-treatment systems.
Fe–OH + RNH₂ → Fe–O–NH₂R (monolayer)Reacts with acetic or other organic acids to form amine salts that are water-dispersible and used as emulsifiers in agrochemical and textile formulations.
RNH₂ + AcOH → RNH₃⁺ AcO⁻The primary amine adds across epoxide rings, cross-linking epoxy resins in coatings, adhesives and encapsulants.
RNH₂ + epoxide → β-hydroxyamine adductProcess notes. Dodecylamine is a corrosive base. It attacks copper and copper alloys; use stainless steel, carbon steel or HDPE. The solid melts near room temperature — drum storage in heated bays or use lined totes. Keep away from strong acids, oxidising agents and nitrosating compounds.
Discuss your processCommercial dodecylamine follows a well-established fatty nitrile route. The chain length is fixed by the feedstock — purified lauric acid or its methyl ester.
Lauric acid from coconut or palm kernel oil is purified to narrow the chain-length distribution.
Ammonia is reacted with lauric acid at high temperature to give dodecanenitrile (lauronitrile).
The nitrile is hydrogenated over a catalyst under pressure, yielding a crude primary amine with minor secondary (didodecylamine) and tertiary (tridodecylamine) components.
Fractional distillation separates primary-rich from secondary- and tertiary-rich cuts. Conditions are tuned to maximise primary amine purity.
DDA is tested for primary amine content, colour and related amines, then drummed under nitrogen to prevent moisture and CO₂ absorption.
The reactivity of dodecylamine depends on how much of it is the primary amine. Secondary (didodecylamine) and tertiary (tridodecylamine) impurities react differently — secondary amines can form nitrosamines in the presence of nitrosating agents, and tertiary amines cannot form amides. For flotation reagents, the amine acetate is made in situ: a high primary content gives sharper performance.
DDA melts at 27–29 °C. In temperate climates it may arrive semi-solid or solid; a heated storage bay or drum heater is needed before use. Once melted it is stable for twelve months in sealed containers under nitrogen. Do not store open-mouthed — the amine absorbs CO₂ and moisture, which can form a surface carbonate layer that slows amine availability.
Tell us the application and we will confirm the grade. Commercial grade covers flotation, corrosion inhibitors and quaternisation; high-purity and laboratory grades suit synthesis and analytical work.
The everyday grade for flotation, corrosion inhibition, quaternisation and emulsifier manufacture.
Tighter limits on secondary and tertiary amines for pharmaceutical and agrochemical intermediates.
Tighter impurity limits for R&D, method development and QC use.
| Parameter | Test method | Typical specification |
|---|---|---|
| Appearance | Visual | Off-white to white waxy solid; clear liquid above melting point |
| Primary amine content | GC or potentiometric titration | ≥ 99.0% w/w |
| Secondary amine (didodecylamine) | GC | ≤ 0.5% w/w |
| Tertiary amine | GC | ≤ 0.2% w/w |
| Colour (APHA) | APHA (liquid at 30 °C) | ≤ 20 |
| Water | Karl Fischer | ≤ 0.3% w/w |
| Density at 30 °C | Densitometer | 0.798 – 0.804 g/cm³ |
Indicative specification for planning. The controlling document is the Certificate of Analysis issued for your batch. If your process needs tighter limits, say so at enquiry stage and we will quote against your specification.
DDA is a multifunctional fatty amine. Its largest outlets are ore flotation and quaternary ammonium compounds, but it appears across mining, water treatment, personal care, agrochemicals and coatings.
The standard cationic collector for silica, quartz and feldspar flotation in potash, iron ore and industrial mineral beneficiation. Typically used as the acetate salt.
Starting material for dodecyltrimethylammonium chloride, benzalkonium-type quats and other QACs used in fabric softeners, biocides and personal care.
Forms protective monolayers on metal surfaces in oilfield, industrial water and cooling-system formulations. Used as both the free amine and as an amine-fatty acid salt.
Condensed with fatty acids or converted to amine acetates to make cationic emulsifiers for herbicide and pesticide formulations.
Ethoxylated dodecylamine and its quaternary derivatives are applied as antistatic agents and fibre-finishing auxiliaries in man-made and natural fibre processing.
Amine-based bitumen emulsifiers and adhesion promoters for asphalt; dodecylamine derivatives improve aggregate–binder adhesion in warm-mix asphalt.
A curing agent for epoxy resins in coatings, adhesives and composites — the primary amine adds across epoxide rings to give a flexible, cross-linked network.
A building block for imines (Schiff bases), amides, polyamides, isocyanates and other specialty intermediates in fine chemical and pharmaceutical manufacturing.
If you are mapping a fatty-amine value chain or looking for a product one step downstream, here is where dodecylamine ends up commercially.
| Derivative | Made by | End use |
|---|---|---|
| Dodecylamine acetate | Neutralisation with acetic acid | Flotation collector for silica and quartz |
| Dodecyltrimethylammonium chloride (DTAC) | Exhaustive methylation of DDA | Biocide, fabric softener, personal care |
| Ethoxylated dodecylamine (PEG-2 laurylamine) | Ethylene oxide addition | Antistatic agent, nonionic emulsifier, textile auxiliary |
| Dodecyl amide | Condensation with fatty acid | Lubricant, release agent, wax additive |
| Dodecyl imine (Schiff base) | Condensation with aldehyde | Corrosion inhibitor, agrochemical intermediate |
| N,N-Didodecylamine | By-product of reductive amination; also made directly | Lubricant additive, phase-transfer catalyst intermediate |
Every container carries the Chelora Amines label with product name, grade, net weight, batch number, manufacturing date, UN number where applicable and hazard pictograms.
UN-approved steel drums suitable for corrosive, combustible solids and liquids. Recommended for most production use.
UN-approved intermediate bulk containers for regular users who melt and transfer material in volume. Earthing points fitted.
500 g to 25 kg packs for laboratory, pilot and qualification work. Grade and batch documented on every label.
Dodecylamine is a waxy solid near room temperature. Share your monthly consumption, the application and your drum-heating or heated-storage capacity, and we will recommend the grade, pack size and delivery schedule that keeps your plant running without excess inventory. Export consignments are packed in UN-specification containers, palletised and stretch-wrapped, and shipped FOB, CIF or CFR through Nhava Sheva and Mundra.
Plan my supplyDodecylamine is a corrosive liquid (when molten) and solid that causes severe skin burns and eye damage and is harmful if inhaled or in contact with skin. The notes below are a summary for planning only — always work to the Safety Data Sheet supplied with your consignment and your own site risk assessment.
| Parameter | Specification | Result |
|---|---|---|
| Appearance | White waxy solid | Complies |
| Primary amine (GC) | ≥ 99.0% | Complies |
| Secondary amine | ≤ 0.5% | Complies |
| Water (KF) | ≤ 0.3% | Complies |
| Colour (APHA) | ≤ 20 | Complies |
Dodecylamine is checked before dispatch and each consignment leaves with the paperwork your QC, stores and accounts teams need on day one.
Five steps for a first order of dodecylamine. Repeat orders follow the same route on a schedule that matches your consumption.
Grade, quantity, pack size, delivery address or destination port, and heated-storage capacity if relevant.
We confirm the grade for your application and quote, usually within 24 hours.
The batch is tested and the COA, SDS and invoice details are prepared.
Labelled packs move by road, or in export packing for overseas buyers.
Material reaches your gate and repeat dispatches are scheduled to your usage.
Dodecylamine is a commodity on a price list. What separates suppliers is grade flexibility, the paperwork and the answer you get when something is not routine.
Dodecylamine sits alongside octadecylamine, oleylamine, and over fifty other amines we stock. Your purchase team raises one enquiry and manages one vendor record instead of several.
Commercial, high-purity synthesis and laboratory grades of dodecylamine are available — so you are not forced to over-specify or accept what the supplier happens to carry.
COA, SDS, correct HSN and HS codes, transport declarations and certificates of origin prepared with the consignment, not chased by your logistics team afterwards.
We pack and label DDA correctly for its phase state. Guidance on drum-heating, transfer and nitrogen blanketing is part of our standard dispatch note at no extra charge.
Once we know your monthly draw we hold and release material on a schedule, so you carry less inventory and avoid spot-market pricing.
Describe the application rather than the product code and we will tell you which grade fits — and say so plainly when oleylamine or octadecylamine would serve you better.
Buyers who order dodecylamine usually source these from the same list. Open any product for its specification, grades and packing, or see the full product range.
Container shipments to buyers on five continents, plus road dispatch inside India. Tell us your country and destination port and we will quote landed terms, transit time and the documentation your customs broker will ask for.
UAE, Saudi Arabia, Oman, Qatar, Kuwait, Egypt, Morocco, Kenya, Nigeria, South Africa and other markets across the continent and Gulf.
Bangladesh, Sri Lanka, Vietnam, Thailand, Indonesia, Malaysia, Singapore, Philippines, South Korea, Japan, Australia and New Zealand.
Germany, Netherlands, Belgium, France, Italy, Spain, Poland, UK, Türkiye, Russia, Ukraine, Kazakhstan and Uzbekistan.
United States, Canada, Mexico, Brazil, Argentina, Chile, Colombia, Peru and the Caribbean, shipped in UN-specification packaging with full DG documentation.
| Incoterms quoted | EXW, FOB, CFR, CIF and DAP, depending on your destination and preference |
| Load ports | Nhava Sheva (JNPT) and Mundra, with Chennai and Kolkata used for eastbound routings |
| Container options | Full container loads, and consolidated LCL shipments for smaller quantities |
| Packing for export | UN-specification drums and IBCs, palletised, strapped and stretch-wrapped, with DG labelling |
| Payment terms | Advance, irrevocable letter of credit or agreed credit terms for established accounts |
| Before first shipment | Company credentials, end-use declaration and any import permit the destination country requires |
Short answers to what purchase, plant and QC teams ask us most. Anything else, ask us directly.
Send the grade, quantity, pack size and your delivery address or destination port. We come back with a price, the documents that go with the batch and a dispatch or shipping plan, usually within 24 hours.