PRODUCTS

LAURYL AMINE OXIDE

CAS NUMBER: 308062-28-4

Lauryl amine oxide, also known as dodecyldimethylamine oxide (DDAO), is an amine oxide based zwitterionic surfactant, with a C12 (dodecyl) alkyl tail.
Lauryl amine oxide is one of the most frequently-used surfactants of this type.
Like other amine oxide based surfactants it is antimicrobial, being effective against common bacteria such as S. aureus and E. coli, however it is also non-denaturing and may be used to solubilize proteins.

At high concentrations, Lauryl amine oxide forms liquid crystalline phases.
Despite having only one polar atom that is able to interact with water the oxygen atom (the quaternary nitrogen atom is hidden from intermolecular interactions), DDAO is a strongly hydrophilic surfactant: it forms normal micelles and normal liquid crystalline phases.

High hydrophilicity of this surfactant can be explained by the fact that it forms very strong hydrogen bonds with water: the energy of DDAO – water hydrogen bond is about 50 kJ/mol.Lauryl amine oxide is a clear, pale-yellow, amine oxide liquid derived from coconut.
Coconuts grow on the cocos nucifera, or coconut palm tree.

Coconut palms grow around the world in lowland tropical and subtropical areas where annual precipitation is low.
Widely cultivated, healthy coconut palms produce 50 nuts per year, and the tree can be used to produce everything from food and drink to fibers, building materials, and natural ingredients.
Lauryl amine oxide (LDAO), also known as dodecyldimethylamine oxide (DDAO), is an amine oxide based zwitterionic surfactant, with a C12 (dodecyl) alkyl tail.

Lauryl amine oxide is one of the most frequently-used surfactants of this type.
Like other amine oxide based surfactants it is antimicrobial, being effective against common bacteria such as S. aureus and E. coli, however it is also non-denaturing and may be used to solubilize proteins.
At high concentrations, LDAO forms liquid crystalline phases.

Despite having only one polar atom that is able to interact with water the oxygen atom (the quaternary nitrogen atom is hidden from intermolecular interactions), DDAO is a strongly hydrophilic surfactant: it forms normal micelles and normal liquid crystalline phases.

High hydrophilicity of this surfactant can be explained by the fact that it forms very strong hydrogen bonds with water: the energy of DDAO – water hydrogen bond is about 50 kJ/mol.
Dodecyldimethylamine N-oxide is a tertiary amine oxide resulting from the formal oxidation of the amino group of dodecyldimethylamine.

Lauryl amine oxide has a role as a plant metabolite and a detergent.
Lauryl amine oxide derives from a hydride of a dodecane.
Lauryl Amine Oxide (LAO) is a standard liquid surfactant.
Lauryl amine oxide appears as a clear yellow liquid.

This product is used as a viscosity modifier and foam enhancer for shampoos and shower gels.
Lauryl amine oxide is also applied as a foam enhancer and detergent in hard surface cleaners, sanitizing products, dishwashing liquids, and car wash systems.
In addition, this product is suitable as a water-based nonionic surfactant compatible with anionic and cationic systems.
A 30% aqueous solution of lauryl dimethylamine oxide which is based on a tertiary amine derived from natural alcohols.

Lauryl amine oxide is a strongly hydrophilic surfactant and is a colourless, viscous and foamy water based surfactant with a mild odour.
When mixed with acids, LAO can behave as a cationic surfactant but in neutral or alkaline conditions, it acts as a non-ionic surfactant.
When blended with anionic surfactants, LAO is an excellent foam booster.
Lauryl amine oxide is commonly used in washing up liquids, shampoos, bubble baths, thickened bleach cleaners, vehicle cleaners and a wide range of other cleaners.

Compatible with bleach and hypochlorite.
Lauryl amine oxide is often added to them to produce foaming, allowing hypochlorite solutions to cling to surfaces and increase contact time.

Lauryl amine oxide also allows bleach stable fragrances to be added to hypochlorite to help reduce the odours associated with bleach.In cosmetics and personal-care products, Lauramine and Stearamine Oxides are amine oxides that are used mostly in hair-care products as foam builders and stabilizers, viscosity enhancers, emollients, conditioners, emulsifiers, antistatic agents and wetting agents.

Lauramine and Steramine Oxides are used mainly in hair-care products such as shampoos, hair rinses, tonics and hair-grooming aids.
Lauryl amine oxide is a clear, pale-yellow, amine oxide liquid derived from coconut.

Coconuts grow on the cocos nucifera, or coconut palm tree.
Coconut palms grow around the world in lowland tropical and subtropical areas where annual precipitation is low.
Widely cultivated, healthy coconut palms produce 50 nuts per year, and the tree can be used to produce everything from food to building materials to natural ingredients.

Lauryl amine oxide is a surfactant, meaning it breaks surface tension in liquids, allowing things to become clean.
Lauryl amine oxide is also a foam builder, stabilizer, viscosity enhancer, emollient, and conditioner.
Lauryl amine oxide can be found in personal care products such as shampoo, facial cleansers, body wash, sunscreen, and a variety of other products.

Lauryl amine oxide oxide is a cleaning agent, or "surfactant," that can also be found in a variety of products including shampoos and dishwashing detergents.
We use it in our products to remove dirt and deposits by surrounding dirt particles to loosen them from the surface they're attached to, so they can be rinsed away.

Lauryl Myristyl Amine Oxide surfactant exhibits good tolerance to electrolytes which permits improved performance of formulations containing this surfactant in hard water.
Foaming properties are stable within a wide pH range of 5-12.
Lauryl Amine Oxide is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions.

Lauryl Amine Oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).An estimated BCF of 0.7 was calculated for Lauryl Amine Oxide(SRC), using a water solubility of 190,000 mg/L and a regression-derived equation.

According to a classification scheme, this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
The Koc of Lauryl Amine Oxide is estimated as 5.5(SRC), using a water solubility of 190,000 mg/L and a regression-derived equation.
According to a classification scheme, this estimated Koc value suggests that Lauryl Amine Oxide is expected to have very high mobility in soil.

The Henry's Law constant for Lauryl Amine Oxide is estimated as 6.6X10-11 atm-cu m/mole(SRC) using a fragment constant estimation method. This Henry's Law constant indicates that Lauryl Amine Oxide is expected to be essentially nonvolatile from water surfaces(2).

Lauryl Amine Oxide's Henry's Law constant indicates that volatilization from moist soil surfaces is not likely to occur(SRC). Lauryl Amine Oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method(3).NIOSH (NOES Survey 1981-1983) has statistically estimated that 91,001 workers

(38,251 of these were female) were potentially exposed to Lauryl Amine Oxide in the US. Occupational exposure may occur through dermal contact with this compound at workplaces where Lauryl Amine Oxide is produced or used.
The general population may be exposed to Lauryl Amine Oxide via dermal contact with this compound and consumer products containing Lauryl Amine oxide(SRC).

Lauryl Amine Oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).
Lauryl Amine Oxide, present at 100 mg/L, was 100% removed in 4 weeks as measured by liquid chromatography-mass spectrometry, using an activated sludge inoculum at 30 mg/L in the Japanese MITI test.

An inherent biodegradability test using an activated sludge inoculum at 100 mg/L and Lauryl Amine Oxide at 30 mg/L showed the compound to reach 88% of its theoretical total organic carbon in 4 weeks.
The rate constant for the vapor-phase reaction of Lauryl Amine Oxide with photochemically-produced hydroxyl radicals has been estimated as 2.7X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method.

This corresponds to an atmospheric half-life of about 14.1 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm.
The general population may be exposed to Lauryl Amine Oxide via dermal contact with this compound in consumer products containing

Lauryl Amine Oxide.Lauryl Amine Oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap, as a foam stabilizer, and textile antistatic agent may result in its release to the environment through various waste streams(SRC).
Based on a classification scheme, an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L and a regression-derived equation, indicates that Lauryl Amine Oxide is expected to have very high mobility in soil(SRC).

Volatilization of Lauryl Amine Oxide from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), using a fragment constant estimation method.
Lauryl Amine Oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm

Hg(SRC), determined from a fragment constant method.
In aqueous biodegradation screening tests, Lauryl Amine Oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry, suggesting that biodegradation in soil is an important fate process(SRC).

Based on a classification scheme, an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L and a regression-derived equation, indicates that Lauryl Amine Oxide is not expected to adsorb to suspended solids and sediment(SRC).

Volatilization from water surfaces is not expected based upon an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), developed using a fragment constant estimation method.
According to a classification scheme, an estimated BCF of 0.7(SRC), from its water solubility and a regression-derived equation, suggests the potential for bioconcentration in aquatic organisms is low(SRC).

Lauryl amine oxide and Stearamine Oxide enhance the appearance and feel of hair by increasing hair body and volume, suppleness or sheen.
These ingrediets may improve the texture of hair that has been damaged physically or by chemical treatment.
Lauramine and Steramine Oxides also increase foaming capacity and prevents the buildup of static electricity in hair-care product formulations.

Lauryl amine oxide is usually classified as a non-ionic surfactant, as it does not have any formal charges, and thus is compatible with anionic and cationic systems.
These products are often used as replacement of alkanolamides (CDE) due to their mildness and improved conditioning properties.
Technically speaking, amine oxides are the result of the oxidation of tertiary amines.

In other words, you have a tertiary amine and you oxidize it, usually with hydrogen peroxide, and you obtain the amine oxide.
However, sometimes Lauryl amine oxide is also classified as cationic, as under pH below 3 it is protonated ,and the nitrogen receives a formal positive charge.
And some users also classify it as an amphoteric surfactant due to the strong ,dipolar moment between the oxygen and the nitrogen, almost as if there was a positive charge on the nitrogen and a negative charge on the oxygen.

But formally speaking under neutral or alkaline conditions it does not present any formal charges, and therefore is a non-ionic
This amine oxide presents many interesting properties, such as providing a good viscosity response thus allowing efficient thickening of surfactant solutions (the strong dipolar moment helps to structure the surfactant phase), because of its foam boosting and stabilizing it is very efficient even in low pH solutions making it interesting in industrial cleaners as well , with an good resistance to oxidation and excellent skin compatibility

USES:

Personal Care: Viscosity Modifier and Foam Enhancer for Shampoos and Shower GelsSoaps and Detergents: Foam Enhancer and Detergent in Hard Surface Cleaners, Sanitizing Products, Dishwashing Liquids and Car Wash SystemsSurfactants and Esters: Water Based Nonionic Surfactant Compatible with Anionic and Cationic Systems
Lauryl Amine Oxide (LAO) is a standard liquid surfactant.
Lauryl amine oxide appears as a clear yellow liquid.

This product is used as a viscosity modifier and foam enhancer for shampoos and shower gels.
Lauryl amine oxide is also applied as a foam enhancer and detergent in hard surface cleaners, sanitizing products, dishwashing liquids, and car wash systems.
In addition, this product is suitable as a water-based nonionic surfactant compatible with anionic and cationic systems.
(1-Dodecyl-14C)Lauryl amine oxide (10 mg with 100 uCi of 14C) was applied to the skin of two humans to study cutaneous absorption and metabolism of Lauryl amine oxide.

Ninety-two percent of the applied radioactivity was recovered from the skin of the test subjects 8 hr after dosing, and 0.1 and 0.23% of the radioactivity was recovered from the excretion products of the test subjects.
The stratum corneum contained <0.2% of the applied dose.
Oral administration of a solution containing 50 mg (1-dodecyl-14C)Lauryl amine oxide (100 uCi of 14C) to two humans resulted in excretion patterns of radioactivity similar to that of the other species studied.

Fifty percent and 37% of the radioactivity was found in the urine within 24 hr of dosing, and expired 14C02 contained between 18 and 22% of the radioactivity administered.
Four Sprague-Dawley rats were given intraperitoneal injections of 22 mg (methyl-14C)Lauryl amine oxide kg (specific activity 1.3 mCi/g).
Sixty-seven percent of the total radioactivity was eliminated in the urine, 8% was expired as I4CO2, and 6% was eliminated in the feces within 24 hr.

The distribution of radioactivity was essentially the same as that seen in rats given oral doses of Lauryl amine oxide.
The conclusion was that " microbial metabolism by gastrointestinal flora does not play a major role in the absorption and excretion of and absorption of the compound.
Over 72 hr, 14.2% of the total radioactivity was found in the urine, 2.5% in the CO2, and 1.8% in the feces.
Radioactivity was detected in the liver, kidneys, testes, blood, and expired CO2.

Characterization of metabolites of Lauryl amine oxide resulted in the positive identification of only one metabolite, N-dimethyl-4-aminobutyric acid N-oxide.
Several pathways exist for metabolism of Lauryl amine oxide: omega,beta-oxidation of alkyl chains (the most common pathway for surfactant metabolism), hydroxylation of alkyl chains, and reduction of the amine oxide group.

Lauryl amine oxide and stearamine oxide are aliphatic tertiary amine oxides that are used in cosmetics as foam builders and stabilizers, viscosity enhancers, emollients, conditioners, emulsifiers, antistatic agents, and wetting agents.
Acute Exposure/ The ocular irritation potential of formulations containing 0.3% active Lauryl amine oxide was evaluated by instilling 10 uL into the conjunctival sac of New Zealand White rabbits.

The eyes of some rabbits were rinsed with distilled water.
Irritation was scored according to the method of Draize (maximum possible score:). Slight irritation of the conjunctivae was observed in all unrinsed eyes and in two of three rinsed eyes at the 24-hr grading period.
The maximum average score was 2.0 for the animals with unrinsed eyes, and 1.3 for those whose eyes were rinsed.
All eyes were clear after 48 hr.
Acute Exposure/ Liquid droplet aerosol /formulation containing 0.3% active Lauryl amine oxide/ at concentrations of 0.2, 1.0, and 5.2 mg/L were tested on three groups of four male Swiss-Webster mice.

Only the heads of the mice were exposed to the aerosol.
The average respiratory rate was monitored using plethysmography 5 min before, 10 min during, and 10 min after each exposure, and the percentage change in respiratory rate was calculated.
A decrease in respiratory rate was considered a response to upper airway irritation.
A transient decrease was observed in the respiratory rate of the 1.0 mg/L exposed group, but this was not considered significant because no signs of irritation were seen at greater exposure concentrations.

The groups treated with 1.0 mg/L and 5.2 mg/L had a 6% decrease in their average respiratory rates.
However, these decreases were not attributed to upper airway irritation because the respiratory rates were even lower during the postexposure recovery period.
No decrease in respiratory rate was observed in the 0.2 mg/L exposed mice.
Acute Exposure/ The acute inhalation toxicity of a liquid droplet aerosol formulation containing 0.3% active Lauryl amine oxide was evaluated.
Five female and five male albino Sprague-Dawley-derived rats were exposed for 4 hr to this aerosol at a concentration of 5.3 mg/L.

The Equivalent Aerodynamic Diameter of the aerosol was 3.6 um with a geometric standard deviation of 1.91.
The animals were observed during the exposure and two times daily for 14 days, and body weights were recorded before exposure and on days 1, 3, 7, and 14 postexposure.
At necropsy, the major organs in the abdominal and thoracic cavities were weighed and observed.
No deaths occurred during the study and all the rats appeared normal.

A slight drop in body weight was observed in the males on day 1, but weight was gained normally for the remainder of the study.
The weight gain in the females was normal.
The organ weights were all within the anticipated normal control ranges for both sexes.
No exposure-related pharmacotoxic signs were evident in any of the organs.
The 4-hr LD50 for this aerosol was greater than 5.3 mg/L nominal.

Lauryl amine oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap, as a foam stabilizer, and textile antistatic agent may result in its release to the environment through various waste streams.
If released to air, an estimated vapor pressure of 6.2X10-8 mm Hg at 25 °C indicates Lauryl amine oxide will exist in both the vapor and particulate phases in the atmosphere.
Vapor-phase Lauryl amine oxide will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 14.1 hours.

Particulate-phase Lauryl amine oxide will be removed from the atmosphere by wet or dry deposition.
Luryl amine oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight.
If released to soil, Lauryl amine oxide is expected to have very high mobility based upon an estimated.
Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole.

In aqueous biodegradation screening tests, Lauryl amine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry, suggesting that biodegradation in soil and water is an important fate process.
If released into water, Lauryl amine oxide is not expected to adsorb to suspended solids and sediment based upon the estimated Koc.
Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant.

An estimated BCF of 0.7 suggests the potential for bioconcentration in aquatic organisms is low.
Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions.
Occupational exposure to Lauryl amine oxide may occur through dermal contact with this compound at workplaces where it is produced or used. The general population may be exposed to Lauryl amine oxide via dermal contact with this compound in consumer products containing Lauryl amine oxide.

Lauryl amine oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap, as a foam stabilizer, and textile antistatic agent may result in its release to the environment through various waste streams(SRC).
Based on a classification scheme, an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L and a regression-derived equation, indicates that Lauryl amine oxide is expected to have very high mobility in soil(SRC).
Volatilization of Lauryl amine oxide from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated

Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), using a fragment constant estimation method.
Lauryl amine oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method. In aqueous biodegradation screening tests, Lauryl amine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry, suggesting that biodegradation in soil is an important fate process(SRC).

According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere, Lauryl amine oxide, which has an estimated vapor pressure of 6.2X10-8 mm Hg at 25 °C(SRC), determined from a fragment constant method, will exist in both the vapor and particulate phases in the ambient atmosphere.
Vapor-phase Lauryl amine oxide is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 14.1 hours(SRC), calculated from its rate constant of 2.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method Particulate-phase Lauryl amine oxide may be removed from the air by wet or dry deposition(SRC).

Lauryl amine oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).
Lauryl amine oxide, present at 100 mg/L, was 100% removed in 4 weeks as measured by liquid chromatography-mass spectrometry, using an activated sludge inoculum at 30 mg/L in the Japanese MITI test.

An inherent biodegradability test using an activated sludge inoculum at 100 mg/L and Lauryl amine oxide at 30 mg/L showed the compound to reach 88% of its theoretical total organic carbon in 4 weeks.
The rate constant for the vapor-phase reaction of Lauryl amine oxide with photochemically-produced hydroxyl radicals has been estimated as 2.7X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1).
This corresponds to an atmospheric half-life of about 14.1 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm.

Lauryl amine oxide is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions.
Lauryl amine oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).

An estimated BCF of 0.7 was calculated for Lauryl amine oxide(SRC), using a water solubility of 190,000 mg/L and a regression-derived equation.
According to a classification scheme, this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
The Koc of Lauryl amine oxide is estimated as 5.5(SRC), using a water solubility of 190,000 mg/L and a regression-derived equation.
According to a classification scheme, this estimated Koc value suggests that Lauryl amine oxide is expected to have very high mobility in soil.

The Henry's Law constant for Lauryl amine oxide is estimated as 6.6X10-11 atm-cu m/mole(SRC) using a fragment constant estimation method.
This Henry's Law constant indicates that Lauryl amine oxide is expected to be essentially nonvolatile from water surfaces.
Lauryl amine oxide's Henry's Law constant indicates that volatilization from moist soil surfaces is not likely to occur(SRC).

Lauryl amine oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method.

NIOSH (NOES Survey 1981-1983) has statistically estimated that 91,001 workers (38,251 of these were female) were potentially exposed to Lauryl amine oxide in the US.
Occupational exposure may occur through dermal contact with this compound at workplaces where Lauryl amine oxide is produced or used. The general population may be exposed to Lauryl amine oxide via dermal contact with this compound and consumer products containing Lauryl amine oxide(SRC).

Lauryl amine Oxide is a nonionic/amphoteric surfactant which is compatible with all surfactant classes: anionic, nonionic, amphoteric, and cationic.

Lauryl amine oxide provides high foaming and thickening properties and is stable at most pH ranges, including, stability in peroxide and hypochlorite solutions.
In addition, Lauryl amine Oxide can mitigate the irritation effects of anionic surfactants.
Major market segments for this product include home care, personal care, oil & gas, and agrochemicals.

LAURAMINE OXIDE is classified as :

-Antistatic
-Cleansing
-Foam boosting
-Hair conditioning
-Hydrotrope
-Surfactant
-Viscosity controlling
-Perfuming

Amine N-oxides are active components in body care products such as shampoo, bubble bath, and hand-soap formulations in combination with alkyl or olefin sulfates.
In acidic media, they are cationic and can act as a mild conditioner.
In neutral or weak basic media, they are featured as excellent foam stabilizer and viscosity building provider.
Lauryl amine oxide is used as a foam enhancer, stabilizer and viscosity builder.

Lauryl amine oxide is used in light duty liquid detergents, drain cleaners, fabric washer.
Dye dispersant, wetting agent, emulsifier, lubricant.
Formulation with anionic, nonionic and cationic materials.

Amphoteric surfactants have dual functional groups (both acidic and basic groups) in the same molecule.
They are polar solvents that have a high solubility in water but a poor solubility in most organic solvents.
They are electrically neutral but carries positive and negative charges on different atoms in an aqueous solution.

Depending on the composition and conditions of pH value, the substances can have anionic or cationic properties.
In the presence of acids, they will accept the hydrogen ions but they will donate hydrogen ions to the solution in the presence of bases, which balances the pH.

Such actions make buffer solutions which resist change to the pH.
In the detergency ability amphoteric surfactants which change their charge according to the pH of the solution affects properties of foaming, wetting and detergentcy through a surface action that exerts both hydrophilic and hydrophobic properties.
In biochemistry amphoteric surfactant is used as a detergent for purifying, cleansing and antimicrobial effects.
Alkylbetains and aminoxides are amphoteric surfactants.
Learn all about lauryl amine oxide, including how it's made, and why Puracy uses lauramine oxide in our products.

USES:

-Washes and Cleaners
-Body Washes
-Conditioners
-Alkaline and Acid Cleaners
-Bleach Cleaners
-Body Washes
-Bubble Bath
-Car and Truck Wash Soaps
-Conditioners
-Dishwash Detergents
-Facial Cleansers
-Foam Booster
-Green Products
-Industrial cleaners
-Roof and House washes

APPLICATIONS:

-Fabric care
-Hard surface care
-Home & industrial care intermediates
-Industrial cleaners
-Institutional cleaners
-Soap/detergents
-Cationic surfactants used as disinfectants, fungicides, germicide and other uses Amphoteric surfactants and Amine oxides used as antistatic agent, textile scouring agent,
-ingredient for low irritation shampoo, liquid detergent, foam boosters
-As fabric softeners and other speciality chemicals
-Dispersants, lubricants, water treatment agents

FUNCTIONS:

Lauryl amine oxide is an Amine N-oxide, an active component primarily found in shampoo, bubble bath and hand soap thanks to its foam building properties (Source).
Because Lauryl amine oxide has dual functional groups in the same molecule (both asidic and basic groups), it is very versatile.

Lauryl amine oxide can have high solubility in some solutions and low in others; it creates positive charges and negative charges on different atoms; it carries anionic or cationic properties depending on pH value.
Therefore although Lauryl amine oxide is seen most frequently as a foam builder in beauty products, it can also be used as a dye dispersant, wetting agent, emulsifier, lubricant, surfactant, anti-static agent, and viscosity controlling agent, according to research.

SAFETY:

Lauryl amine oxide is approved by the CIR for use in cosmetics but with restriction limiting its use to rinse-off products; The International Journal of Toxicology reports skin irritation from Lauryl amine oxide and recommends limiting its use to rinse off products at a maximum of 3.7% concentration.
A 1981 study by published in Contact Dermatitis also found Lauryl amine oxide to be a primary skin irritant.

If released to air, an estimated vapor pressure of 6.2X10-8 mm Hg at 25 °C indicates Lauryl amine oxide will exist in both the vapor and particulate phases in the atmosphere. Vapor-phase Lauryl amine oxide will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 14.1 hours.
Particulate-phase Lauryl amine oxide will be removed from the atmosphere by wet or dry deposition.

Lauryl amine oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight.
If released to soil, Lauryl amine oxide is expected to have very high mobility based upon an estimated Koc of 5.5.
Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole.

Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions.
Occupational exposure to Lauryl amine oxide may occur through dermal contact with this compound at workplaces where it is produced or used.
The general population may be exposed to Lauryl amine oxide via dermal contact with this compound in consumer products containing Lauryl amine oxide.

Lauryl amine oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap, as a foam stabilizer, and textile antistatic agent may result in its release to the environment through various waste streams(SRC).
Based on a classification scheme, an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L and a regression-derived equation, indicates that Lauryl amine oxide is expected to have very high mobility in soil(SRC).
Volatilization of Lauryl amine oxide from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated

Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), using a fragment constant estimation method.
Lauryl amine oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method.
In aqueous biodegradation screening tests, Lauryl amine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry, suggesting that biodegradation in soil is an important fate process(SRC).

PROPERTIES:

Appearance: Clear Liquid
Odor: Characteristic
Color: Colorless to Pale Yellow
pH (10% Solution W/V): 5.5 – 7.5
Assay, % by mass: 27 – 29
Free Amine, %: 0.5 max
Microbial Count (Plate Method), cfu/mL:   < 10
Molecular Weight: 240

How Lauryl amine oxide Is Made:

Lauryl amine oxide is a surfactant, meaning it breaks surface tension in liquids, allowing things to become clean.
Lauryl amine oxide is also a foam builder, stabilizer, viscosity enhancer, emollient and condition
Lauryl amine oxide can be found in personal care products such as shampoo, facial cleansers, body wash, sunscreen, and a variety of other produc
Lauryl amine oxide is a surfactant, meaning it breaks surface tension in liquids, allowing things to become clean.

Lauryl amine oxide is also a foam builder, stabilizer, viscosity enhancer, emollient and conditioner.
It can be found in personal care products such as shampoo, facial cleansers, body wash, sunscreen, and a variety of other products.
We use Lauryl amine oxide as a surfactant and cleanser.
The Cosmetics Ingredient Review has deemed the ingredient safe for use in cosmetic products and in leave-on products in which the concentration is limited to 3.7%.

Research shows the ingredient is typically not a skin or eye irritant.
Commercial production of Lauryl amine oxide occurs largely by mixing the amine with 35% hydrogen peroxide at 60 degrees Celsius.
The mixture is heated to 75 degrees Celsius and sodium sulfite or manganese dioxide are added.
The mixture is then filtered to get rid of extra peroxide.

Lauryl amine oxide and Stearamine Oxide are aliphatic tertiary amine oxides that are used mostly in hair care products as foam builders and stabilizers, viscosity enhancers, emollients, conditioners, emulsifiers, antistatic agents, and wetting agents.
Both compounds are susceptible to nitrosation and can form nitrosamines in the presence of nitrosating agents.
In rats, up to 40% of Lauryl amine oxide applied to the skin was absorbed.
In two human volunteers, 92% of the dose applied to the skin was recovered from the skin.

The oral LD50 in rats for a formulation containing 0.3% Lauryl amine oxide was estimated to be >20 g/kg.
At a concentration of 30%, Lauryl amine oxide produced severe dermal reactions in rabbits, but at 0.3% only slight to moderate erythema with slight edema, Assuring, and slight to moderate epithelial desquamation were found.

Stearamine Oxide applied to rabbit skin at 5% did not cause irritation.
Both ingredients caused mild, transient ocular irritation in rabbits.
Clinical data showed dermal exposure to 3.7% Lauryl amine oxide to be a mild irritant, with a slight potential for mild cumulative skin irritation at concentrations as low as 2%. At 0.3%, Lauryl amine oxide was not a sensitizer in clinical studies.

Lauryl amine oxide was nonmutagenic in the Ames assay, but was mutagenic after nitrosation.
Lauryl amine oxide at 0.1% in drinking water was not carcinogenic in rats, but at 0.1% with 0.2% sodium nitrate did increase the incidence of liver neoplasms.

Based on this animal data, neither ingredient should contain N-ni-troso compounds nor be used in formulations containing nitrosating agents.
On the basis of the available animal and clinical data, it is concluded that Lauryl amine oxide and Stearamine Oxide are safe as cosmetic ingredients for rinse-off products, but that the concentration in Lauryl amine oxide leave-on products should be limited to 3.7% and that of Stearamine Oxide limited to 5%.

The oral LD,, in rats for a formulation containing 0.3% Lauryl amine oxide was estimated to be >20 &g.
At a concentration of 30%, Lauryl amine oxide produced severe dermal reactions in rabbits, but at 0.3% only slight to moderate erythema with slight edema, fissuring, and slight to moderate epithelial desquamation were found.
Stearamine Oxide applied to rabbit skin at 5% did not cause irritation.
Both ingredients caused mild, transient ocular irritation in rabbits.
Clinical data showed dermal exposure to 3.7% Lauryl amine oxide to be a mild initant, with a slight potential for mild cumulative skin initation at concentrations as low as 2%. At 0.3%, Lauryl amine oxide was not a sensitizer in clinical studies.

Based on this animal data, neither ingredient should contain N-nitrow compounds nor be used in formulations containing nitrosating agents.
On the basis of the available animal and clinical data, it is concluded that Lauryl amine oxide and Stearamine Oxide are safe as cosmetic ingredients for rinseoff products, but that the concentration in Lauryl amine oxide leave-on products should be limited to 3.7% and that of Stearamine Oxide limited to 5%. Key Words: Safety assessment-Lauryl amine oxide-Stearamine Oxide.

Lauryl amine oxide is an excellent, versatile highly efficent surfactant for cleaning, contributing good foam and solubilizing properties to all kinds of cleaners, shampoos, bath and body products, and even detergents and cleaners for hard surfaces and even formulations for washing fine fabrics.
Lauryl amine oxide is compatible with most with nonionic, anionic and cationic surfactants. Works well in neutrral, acid, and alkaline formulations.
Lauryl amine oxide is effective, plus it is an environmentally responsible surfactant that can often replace ngredient that replaces products that are petroleum based, and you may see added performance.

SYNONYM:

Lauryl amine oxide
Dodecyldimethylamine oxide
Lauryldimethylamine N-oxide
LDAO
1-Dodecanamine, N,N-dimethyl-, N-oxide
Dimethyldodecylamine oxide
Ammonyx AO
Ammonyx LO
Empigen OB
Aromox DMCD
Conco XAL