Methyl trioctyl ammonium chloride 98%Min Pale yellow to amber viscous liquid RC00096

Manufacturer: Hangzhou Royalchem Co.,LTD.

Website:  www.cnroyalchem.com

Product Name

Primary Name:  Methyl trioctyl ammonium chloride

CAS Registry Number:  5137-55-3

Other Common Names:

Trioctylmethylammonium chloride

[Methyl(trioctyl)ammonium] chloride

Aliquat® 336 (Major commercial brand name)

Adogen® 464 (Commercial brand name)

TO MAC

Chemical Structure & Identity

Molecular Formula:  C₂₅H₅₄ClN (commonly used, though exact isomer mix varies)

Structural Formula:  [CH₃N(C₈H₁₇)₃]⁺ Cl⁻

Type:  Quaternary ammonium salt (quat)

Composition:  Primarily consists of  Methyltrioctylammonium chloride . The "trioctyl" groups are predominantly branched isomers, mainly  trioctyl  (where "octyl" refers to isomers approximating C₈H₁₇, often based on diisobutylene, meaning the chains are branched 2-ethylhexyl or similar). It is a mixture of isomers, not a single defined compound.

Physical & Chemical Properties

Appearance:  Clear, pale yellow to amber viscous liquid (pure compound).  Most commonly supplied and handled as a solution  (e.g., ~90% in methanol, ~85-90% in isopropanol/water, ~50% in water).

Odor:  Characteristic amine-like odor.

Solubility:

Highly soluble  in organic solvents: Dichloromethane, chloroform, toluene, xylene, lower alcohols (methanol, ethanol, isopropanol - often used as carriers).

Practically insoluble  in water  as the pure compound . Forms inverse micelles.

Solutions in water/alcohol mixtures are common.

Density:  ~0.884 g/cm³ (approx. for pure liquid)

Viscosity:  High viscosity liquid.

Hygroscopicity:  Absorbs moisture from the air.

Stability:  Generally stable under normal storage conditions. Avoid strong oxidizing agents and strong acids/bases. Solutions in alcohol are common and stable.

Critical Property:  Acts as a  Phase Transfer Catalyst (PTC)  due to its ability to transfer anions from aqueous phase to organic phase.

Key Applications & Functions

Phase Transfer Catalyst (PTC) (Primary Use):

Enables reactions between reagents dissolved in immiscible phases (organic/aqueous).

Widely used in organic synthesis, especially for:

Nucleophilic substitutions (e.g., alkylations, cyanide displacement, azide displacement, halogen exchange).

Esterifications and hydrolyses.

Oxidations and reductions.

Polymerizations.

Pharmaceutical and fine chemical intermediates synthesis.

Ion Pair Reagent/Extractant:

Used in solvent extraction for metal ions (e.g., precious metals like Au, Pd, Pt; Zn, Cd, Co, Fe complexes) and anionic species from aqueous solutions.

Used in analytical chemistry for ion-pair chromatography.

Surfactant/Emulsifier:

Functions as a cationic surfactant (due to the positive charge on nitrogen).

Used in some emulsion formulations, though less common than other quats for this purpose.

Corrosion Inhibitor:

Used in some industrial formulations to inhibit corrosion, particularly in acidic environments.

Biocide:

Exhibits antimicrobial properties (cationic quat), used in some specialty biocidal applications.

Handling & Safety (Critical Information)

Hazard Statements (GHS - Typical):

H314:  Causes severe skin burns and eye damage.

H302:  Harmful if swallowed.

H315:  Causes skin irritation.

H319:  Causes serious eye irritation.

H410:  Very toxic to aquatic life with long-lasting effects.

Precautionary Statements (GHS - Typical):

P280:  Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331:  IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353:  IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.

P305+P351+P338:  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310:  Immediately call a POISON CENTER or doctor/physician.

P501:  Dispose of contents/container in accordance with local/regional/national/international regulations.

Handling:

Use only in well-ventilated areas (e.g., fume hood).

Avoid contact with skin, eyes, and clothing. Wear appropriate PPE: Chemical-resistant gloves (nitrile, neoprene), safety goggles or face shield, lab coat.

Avoid generating aerosols or mists.

Handle solutions with care (flammable if in alcohol carriers).

Storage:

Store in a cool, dry, well-ventilated place.

Keep container tightly closed to prevent moisture absorption.

Store away from strong oxidizing agents, strong acids, and strong bases.

Store solutions in flammable liquid cabinets if carriers are flammable (e.g., methanol).