Lauramine Oxide, Myristamine Oxide, C12-14 Alkyl Dimethyl Amine Oxide, Dimethylalkylamine N-oxide, 308062-28-4

C12-14 ALKYL DIMETHYL AMINE OXIDE (C12-14 AO)

1. Chemical Identity and Material Classification

• Chemical Name: Amines, C12-14 (even numbered)-alkyldimethyl, N-oxides

• Synonyms: C12-14 Alkyl Dimethyl Amine Oxide, Lauramine Oxide/Myristamine Oxide blend, C12-14 Amine Oxide, C12-14 AO, Amine Oxide (C12-14), N,N-Dimethylalkylamine N-oxide (C12-14)

• CAS Number: 308062-28-4

• EC Number (EINECS): 931-292-6

• Molecular Formula: R(CH₃)₂N→O (where R = C12H25 and C14H29, even-numbered carbon chains)

• Chemical Class: Amine oxide (non-ionic to cationic surfactant)

• UN Number: Not classified as hazardous for transport (typically)

2. Raw Material Composition

This product is a blend of even-numbered carbon chain alkyl dimethyl amine oxides:

Key feature: Contains only even-numbered carbon chains (C12, C14) – no odd-numbered chains.

3. Physical Properties

3.1 General Physical Properties

3.2 Solution Properties

3.3 pH-Dependent Properties

4. Chemical Properties

4.1 Molecular Structure

General structure: R–N⁺(CH₃)₂–O⁻ (amine oxide)
Where R = C₁₂H₂₅ and C₁₄H₂₉ (even-numbered alkyl chains)

Key feature: The amine oxide group is highly polar and can act as both hydrogen bond acceptor and donor.

4.2 pH-Dependent Protonation Equilibrium

4.3 Stability

4.4 Decomposition

4.5 Incompatibilities

• Strong reducing agents (may reduce amine oxide to tertiary amine)

• Strong mineral acids (low pH causes protonation but not degradation; extreme pH may cause decomposition with heat)

• Strong oxidizing agents (generally compatible but may cause exothermic reaction at high concentrations)

5. Production Method

5.1 Synthesis Route

Reaction: R(CH₃)₂N (tertiary amine) + H₂O₂ → R(CH₃)₂N→O + H₂O

Process:

1. C12-14 alkyl dimethyl tertiary amines are reacted with hydrogen peroxide in aqueous solution

2. Reaction temperature: 50–80°C

3. pH control: 7–9 (typically using chelating agents to prevent metal-catalyzed decomposition)

4. Reaction time: 4–8 hours

5. Excess peroxide is neutralized with reducing agent (e.g., sodium sulfite)

6. Product is filtered and adjusted to final concentration (typically 30% or 50% active)

Typical yield: >95%

5.2 Alternative Method

Reaction with organic peracids (e.g., peracetic acid) – less common.

6. Quality Specifications

6.1 Typical Specifications (30% Aqueous Solution)

6.2 Typical Specifications (Powder/Anhydrous Form)

7. Mechanism of Action (Surfactant)

7.1 Surface Activity

7.2 Foaming Properties

8. Industrial Applications

8.1 Detergents and Cleaning Products (Primary Application)

Benefits:

• Excellent foam boosting and stabilization

• Mild to skin (reduces irritation of anionic surfactants)

• Good lime soap dispersant

• Viscosity builder in certain formulations

• Biodegradable

8.2 Personal Care and Cosmetics

Benefits in personal care:

• Reduces irritation of anionic surfactants (SLS, SLES)

• Enhances foam creaminess and stability

• Provides mild conditioning effect

• pH-tolerant (works across wide pH range)

• Compatible with cationic polymers

8.3 Shampoo Formulations (Example)

8.4 Dishwashing Liquid Formulation (Example)

8.5 Textile Industry

8.6 Oil and Gas Industry

8.7 Paints, Coatings, and Inks

8.8 Metalworking Fluids

8.9 Agricultural Formulations

9. Comparison with Other Amine Oxides

10. Toxicology and Safety

10.1 Acute Toxicity

10.2 Chronic Toxicity

10.3 GHS Classification (Typical)

11. Safety Precautions and Personal Protective Equipment (PPE)

• Hazards:

  • Causes eye irritation (concentrated product)

  • May cause skin irritation

  • Toxic to aquatic life – avoid environmental release

• PPE (recommended):

  • Chemical-resistant gloves (nitrile or neoprene)

  • Safety glasses (EN 166) or chemical goggles

  • Protective clothing (for industrial handling)

• First aid:

  • Eye contact: Rinse with water for 15 minutes; remove contact lenses; seek medical attention if irritation persists

  • Skin contact: Wash with soap and water

  • Inhalation: Move to fresh air (unlikely route)

  • Ingestion: Rinse mouth; do NOT induce vomiting; drink water; seek medical attention if large amount swallowed

12. Environmental Fate

Note: Amine oxides are known to be toxic to aquatic organisms, especially algae. Avoid direct discharge to water bodies.

13. Storage and Handling

13.1 Handling Precautions

13.2 Storage Conditions

Note: Amine oxide solutions may gel upon freezing but return to liquid upon warming with mild agitation.

14. Transport Information

15. Synonyms and Common Names

• English: C12-14 Alkyl Dimethyl Amine Oxide, C12-14 Amine Oxide, Lauramine Oxide / Myristamine Oxide blend, Amine Oxide (C12-14), N,N-Dimethylalkylamine N-oxide (C12-14), C12-14 AO, C12-14 Dimethyl Amine Oxide

• Trade names: Aromox C/12, Barlox 12, Chemoxide CAW, Empigen OB, Mackamine CAO, Schercamox C-AA, Tomamine AO-14-2

• Turkish: C12-14 Alkil Dimetil Amin Oksit

• French: Oxyde d'amine C12-14

• German: C12-14 Alkyl Dimethyl Aminoxid

16. Regulatory Status

17. Why Choose C12-14 Alkyl Dimethyl Amine Oxide?

Limitations:

• Eye irritant – concentrated product requires handling precautions

• Aquatic toxicity – toxic to algae and aquatic invertebrates; avoid environmental release

• May gel upon freezing – requires warming and mixing before use

• Decomposes in strong acids with heat – avoid high-temperature, low-pH conditions

18. Product Grades Available

19. Storage Stability – Freeze-Thaw Behavior

20. Summary Table – Key Specifications at a Glance

This TDS is prepared in compliance with ISO 11014-1 format and is intended for detergent formulators, personal care chemists, cleaning product manufacturers, industrial hygienists, and procurement professionals. Certificates of Analysis (CoA), Safety Data Sheets (SDS), and sample validation reports are available upon request.