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Sodium lauryl sulfate is an exogenous solid with the formula C12H25NaO4S and an average molecular weight of 288.38 g/mol. Sodium lauryl sulfate belongs to the sulfuric acid esters, a subclass of organic sulfuric acids and derivatives within the organic compounds.
This compound serves numerous industrial roles and applications, acting as a detergent (PMC12564215 ), surfactant (PMC12808262 ), emulsifier, cleaning agent, foamant, plasticizer, and heat stabilizer. Additionally, it is utilized as a wetting agent (non-aqueous), thickening agent, flow promoter, catalyst (PMC8876200 ), and foaming agent (PMC10197063 ), as well as a protein denaturant and an industrial flavouring and nutrient. Sodium lauryl sulfate is released from recorded sources including electrical and electronic equipment such as antennas and amplifiers, as well as building and construction materials including ceilings, fencing, floors, stairs and ramps, and tents or canopies.
In terms of biological activity, sodium lauryl sulfate is a binder of Cellular tumor antigen p53 (TP53), Estrogen-related receptor gamma (ESRRG), Peroxisome proliferator-activated receptor alpha (PPARA), Retinoic acid receptor alpha (RARA), and six other proteins. It is associated with necrosis (PMC10531698 ). Furthermore, sodium lauryl sulfate acts as a nitrosating agent and may react or decompose to cause nitrosamine contamination; nitrosamines are believed to induce carcinogenic effects through the formation of DNA adducts at the N- and O-atoms.
Belongs to the class of organic compounds known as sulfuric acid monoesters. These are organic compounds containing the sulfuric acid monoester functional group, with the generic structure ROS(O)(=O)=O, (R=organyl group).
While sodium lauryl sulfate itself is not toxic, it is a nitrosating agent. Nitrosating agents may decompose and/or react to cause nitrosamine contamination. Nitrosamines are produced from secondary amines and amides in the presence of nitrite ions and are believed to be carcinogenic. Once in the body, nitrosamines are activated by cytochrome P-450 enzymes. They are then believed to induce their carcinogenic effects by forming DNA adducts at the N- and O-atoms. (11, 12, 1, 2, 3)
Not listed by IARC. Certain nitrosamines are classified by IARC as either probably or possibly carcinogenic to humans (Groups 2A and 2B, respectively). (10)
Minimum Risk Level
Not Available
Symptoms
SLS can cause skin and eye irritation, as well as canker sores when used in toothpasete. (13)
Allergic diseases, also known as allergies, are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis. Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling. Common allergens include pollen and certain foods. Metals and other substances may also cause allergies. Food, insect stings, and medications are common causes of severe allergic reactions. Allergies can be due to both genetic and environmental factors. The underlying mechanism involves immunoglobulin E antibodies (IgE) binding to an allergen and then to a receptor on mast cells or basophils where it triggers the release of inflammatory chemicals such as histamine. Allergies are among the most common conditions in the world. In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have atopic dermatitis at some point in time.
Stormwater runoff?Stormwater runoff refers to the flow of rainwater or melted snow that does not soak into the ground and instead collects pollutants as it travels over impervious surfaces such as roads and parking lots.
Drinking water?Drinking water can be a medium for synthetic chemical contamination, often originating from various industrial processes and agricultural practices.
Detergents?Detergents are synthetic surfactants used in various cleaning applications, designed to break down and remove dirt, grease, and stains from surfaces and fabrics.
Ballast water?Ballast water, taken on by ships to maintain stability and balance, often contains a diverse array of microorganisms, including bacteria, viruses, and plankton.
Bilge water?Bilge water is a byproduct generated from the accumulation of water in the lowest part of a ship's hull, which may include a mixture of seawater, oil, fuel residues, and various contaminants.
Toothpaste?Toothpaste often contains a variety of synthetic chemicals that serve specific functions, such as abrasives, foaming agents, and flavoring agents.
Brushes?Brushes used in personal care and cosmetics can be a source of synthetic chemical contamination due to the materials and coatings used in their manufacturing.
Landfill leachate?Landfill leachate is a liquid that forms when rainwater or moisture percolates through waste materials in a landfill, dissolving various soluble substances and contaminants.
Ceilings?Ceilings in built environments can be a source of synthetic chemical contamination due to the materials used in their construction and finishes.
Fencing?Fencing materials, particularly those used in construction and landscaping, can be a source of synthetic chemical contamination due to the treatments and coatings applied for durability and weather resistance.
Floors?Floors in built environments can be a significant source of synthetic chemical contamination due to the materials and finishes used in their construction.
Stairs And Ramps?Stairs and ramps in construction are often treated with various synthetic chemicals to enhance durability, slip resistance, and weather resistance.
Tents Or Canopies?Tents and canopies used in various applications can be a source of synthetic chemical contamination primarily due to the materials from which they are made.
Amplifiers?Amplifiers, commonly used in various electronic devices to enhance signal strength, can be a source of synthetic chemical contamination due to the materials and processes involved in their production and disposal.
Antennas?Antennas, commonly used in communication technologies, can be a source of synthetic chemical contamination through the materials and coatings used in their construction.
Conductors Or Conductive Bodies Characterised By The Conductive Materials?Conductors, or conductive bodies, are materials that allow the flow of electrical current, typically made from metals such as copper, aluminum, or silver.
Discharge Lamps?Discharge lamps, including fluorescent and high-intensity discharge (HID) lamps, are commonly used for lighting applications due to their energy efficiency and brightness.
Electric Switches?Electric switches, integral components in numerous devices, can be a source of synthetic chemical contamination due to the materials and manufacturing processes involved in their production.
Electrically Stimulated Smoking Devices?Electrically stimulated smoking devices, commonly known as e-cigarettes or vape pens, utilize electrical components to heat a liquid solution, often containing nicotine, flavorings, and other additives, to produce an aerosol for inhalation.
Electrodes?Electrodes, used in various electrical and electronic applications, can be a source of synthetic chemical contamination due to the materials from which they are constructed and the processes involved in their manufacturing.
Fixed Capacitors And Their Manufacture?Fixed capacitors are passive electronic components used to store and release electrical energy, playing a critical role in various circuits.
Hybrid Capacitors?Hybrid capacitors are energy storage devices that combine the properties of electrolytic and supercapacitors, utilizing a combination of electrochemical principles to achieve higher energy density and power density.
Television Systems?Television systems can be a source of synthetic chemical contamination due to the various materials and components used in their manufacture and operation.
Food Preservation?Food preservation often involves the use of synthetic chemicals, such as preservatives, flavor enhancers, and color additives, to extend shelf life and enhance the sensory qualities of food products.
Bleaching Agents?Bleaching agents are chemical substances used to whiten or lighten materials, often employed in various cleaning products for their stain removal and disinfecting properties.
Perfumes Within Detergents And Soaps?Perfumes within detergents and soaps are synthetic fragrance compounds added to enhance the sensory experience of cleaning products.
Soap Detergents?Soap detergents are synthetic surfactants designed to enhance the cleaning efficacy of water by reducing surface tension, allowing for better interaction with dirt and grease.
Tobacco Smoke Filters?Tobacco smoke filters are designed to reduce the inhalation of harmful substances in cigarette smoke, including tar and other particulate matter.
Manufacture Preparation Of Tobacco Products?The manufacture and preparation of tobacco products involve various processes that can result in the introduction of synthetic chemicals into the environment.
Paper Making Machines?Paper making machines utilize various synthetic chemicals throughout the production process, including additives, coatings, and bleaching agents.
Ships?Ships, as vehicles for international trade and transportation, can be significant sources of synthetic chemical contamination in marine environments.
Molluscicides?Molluscicides are synthetic chemicals specifically designed to control and eliminate mollusks, such as snails and slugs, which can be detrimental to crops and agricultural productivity.
Nematocides?Nematocides are synthetic chemicals specifically designed to control nematodes, which are microscopic roundworms that can cause significant damage to crops and plants.
Aftersun Products?Aftersun products are designed to soothe and hydrate the skin after sun exposure, often containing various synthetic chemicals such as emollients, preservatives, and fragrances.
Anti Perspirants Or Body Deoderants?Antiperspirants and body deodorants commonly contain synthetic chemicals such as aluminum compounds, parabens, and synthetic fragrances.
Depilatories?Depilatories are products designed to remove unwanted hair through the application of synthetic chemicals that break down the protein structure of hair, facilitating its removal.
Essential Oils Or Perfumes?Essential oils and perfumes are complex mixtures of volatile compounds derived from natural or synthetic sources, commonly used for their aromatic properties.
Eye Makeup Products?Eye makeup products, including mascaras, eyeliners, and eyeshadows, often contain a variety of synthetic chemicals such as pigments, preservatives, and film-forming agents.
Lip Care Products?Lip care products, including lipsticks, balms, and glosses, often contain a variety of synthetic chemicals such as parabens, phthalates, and synthetic fragrances.
Lip Makeup Products?Lip makeup products, such as lipsticks, lip glosses, and lip liners, often contain a variety of synthetic chemicals, including pigments, preservatives, and emollients.
Toys?Toys, particularly those made from synthetic materials such as plastics, can be a source of chemical contamination due to the presence of various additives and compounds used in their production.
Footwear?Footwear production often involves the use of various synthetic chemicals, such as adhesives, dyes, and treatments, which can contribute to environmental contamination.
Purses Luggage Hand Bags?Purses, luggage, and handbags are often manufactured using synthetic materials such as polyvinyl chloride (PVC), polyurethane, and various types of nylon.
Ropes?Ropes manufactured from synthetic fibers, such as polypropylene, nylon, and polyester, are widely used in various applications, including marine, construction, and outdoor activities.
Surface Finishing Of Leather?Surface finishing of leather often involves the use of various synthetic chemicals, including dyes, resins, and finishing agents.
Transfer Printing?Transfer printing is a process used to apply designs and patterns onto various substrates, commonly utilizing synthetic dyes and inks that can contain hazardous chemicals.
Yarns Or Threads?Yarns or threads used in textiles can be a source of synthetic chemical contamination due to the production processes and treatments they undergo.
Fire Fighting Gels?Fire fighting gels are synthetic chemical formulations designed to enhance fire suppression effectiveness by creating a protective barrier against heat and flames.
Gaseous Fire Fighting?Gaseous fire fighting systems utilize synthetic chemicals, such as halocarbons and inert gases, to suppress fires through chemical and physical processes.
Non-PFAS Fire Fighting Foam?Non-PFAS fire fighting foam refers to fire suppression agents that do not contain per- and polyfluoroalkyl substances (PFAS), which are synthetic chemicals known for their water- and grease-resistant properties.
PFAS Fire Fighting Foam?PFAS fire fighting foam refers to a class of synthetic foams containing per- and polyfluoroalkyl substances (PFAS), which are designed to suppress flammable liquid fires.
Solid Fire Fighting Substances?Solid fire fighting substances, such as certain types of dry chemical powders, are used in fire suppression applications to extinguish flames and prevent fire spread.
Airplanes And Helicopters?Airplanes and helicopters are significant sources of synthetic chemical contamination primarily through the use of aviation fuels, lubricants, and de-icing agents.
Nitrogenous Fertilisers?Nitrogenous fertilizers are synthetic chemical compounds primarily used to enhance plant growth by supplying essential nitrogen, a crucial nutrient for photosynthesis and protein synthesis.
Cements?Cements are a composite material primarily used as a binding agent in construction applications, formed by the calcination of limestone and clay minerals at high temperatures.
Clay Wares?Clay wares are ceramic products made from natural clay, often utilized in various construction applications such as tiles, bricks, and sanitary ware.
Glass Coatings?Glass coatings are synthetic chemical formulations applied to glass surfaces to enhance properties such as durability, UV resistance, and aesthetic appeal.
Lime?Lime, primarily comprised of calcium oxide (CaO) or calcium hydroxide (Ca(OH)₂), is widely used in various applications, including as a key ingredient in mortars, plasters, and cement.
Silica Free Oxide Glass?Silica Free Oxide Glass is a type of glass that is produced using alternative materials to traditional silica-based formulations.
Silica Glass?Silica glass, primarily composed of silicon dioxide (SiO2), is widely used in various applications, including windows, glass facades, and insulation materials.
Nanotechnology?Nanotechnology involves the manipulation of materials at the molecular or atomic level, typically within the range of 1 to 100 nanometers.
Mining Or Quarrying?Mining and quarrying operations can lead to synthetic chemical contamination through the release of various pollutants associated with the extraction and processing of minerals.
Blackboards?Blackboards, traditionally made from slate or coated wood, can also be produced using synthetic materials that may contain various chemicals.
Bookmarkers?Bookmarkers, often made from paper or cardstock, can be a source of synthetic chemical contamination due to the use of various inks, coatings, and adhesives in their production.
Coloured Pencils?Coloured pencils are commonly used tools for artistic expression and education, composed primarily of a wood casing and a core made from a mixture of pigments, binders, and waxes.
Contact Lens Cases?Contact lens cases are small containers designed to store contact lenses in a sterile environment, typically made from various synthetic materials including plastics such as polypropylene or polycarbonate.
Walking Sticks?Walking sticks, while primarily designed for mobility assistance, can be sources of synthetic chemical contamination if not properly manufactured or maintained.
Coating Compositions?Coating compositions, which include paints, sealants, and varnishes, are formulated with a variety of synthetic chemicals such as solvents, resins, pigments, and additives.
Leather Tanning?Leather tanning is a process that transforms raw animal hides into durable leather through the application of various chemicals, including chromium salts, aldehydes, and vegetable tannins.
Sludge Treatment?Sludge treatment involves the processing of waste materials generated from wastewater treatment plants, which often contain a variety of organic and inorganic substances.
Water, Wastewater, & Sewage Treatment?Water, wastewater, and sewage treatment processes are critical for managing and mitigating pollutants in water systems.
Willi Breitzke, Hermann Hensen, “Aqueous preparations of sodium lauryl sulfate and myristyl sulfate having a low cloud point useful in making toothpastes.” U.S. Patent US4876035, issued June, 1960.
MSDS
Not Available
General References
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Chahine L, Sempson N, Wagoner C: The effect of sodium lauryl sulfate on recurrent aphthous ulcers: a clinical study. Compend Contin Educ Dent. 1997 Dec;18(12):1238-40. [PubMed: 9656847]
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International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. - http://monographs.iarc.fr/index.php
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