Sulfonic acid (LABSA)

 

What is Labsa (Sulfonic Acid)?

LABSA or Sulfonic Acid is an abbreviation for Linear Alkylbenzene Sulfonic Acid, a key ingredient in detergents and cleaning products known for its effective cleaning properties.

Physical and Chemical properties LABSA

Physical Properties:

•  Appearance: Sulfonic Acid typically appears as a brown viscous liquid.
• Odor: It often has a characteristic sulfonic acid smell.
• Solubility: LABSA is soluble in water and forms clear solutions.
•  Density: Its density usually ranges from 0.9 to 1.1 g/cm^3.

Chemical Properties:

•  Acidity: Sulfonic Acid is a strong acid with a pH typically ranging from 1 to 2.
•  Reactivity: It is reactive with alkalis (bases) to form salts, which are the active components in detergents.
•  Stability: Sulfonic Acid is stable under normal storage conditions but may degrade under extreme conditions such as high temperatures.
•  Compatibility: LABSA is compatible with various additives and other ingredients commonly used in detergent formulations.
•  Environmental Impact: While Sulfonic Acid is biodegradable, its production and usage can have environmental implications, particularly in terms of wastewater treatment and ecological impact if released into water bodies.

Production Process of LABSA

Sulfonation:

The process begins with the sulfonation of linear alkylbenzene (LAB) using a sulfur trioxide (SO3) gas or a sulfuric acid (H2SO4) and oleum (fuming sulfuric acid) mixture. This reaction takes place in a reactor equipped with suitable agitation and temperature control. LAB reacts with the sulfonating agent to form LAB sulfonic acid.

Neutralization:

After sulfonation, the LAB sulfonic acid is neutralized to adjust its pH and convert it into a more stable form suitable for various applications. Neutralization is typically carried out by adding a base, such as sodium hydroxide (NaOH) or sodium carbonate (Na2CO3), to the sulfonic acid solution. This reaction forms the sodium salt of LABSA, known as sodium linear alkylbenzene sulfonate.

Separation and Filtration:

The neutralized solution undergoes separation and filtration processes to remove any insoluble impurities, unreacted starting materials, or by-products. Filtration is often followed by centrifugation or other separation techniques to obtain a clear LABSA solution.

Concentration:

The filtered LABSA solution is concentrated to increase its active ingredient content and reduce its volume for easier handling and transportation. Concentration is typically achieved through evaporation or distillation under vacuum to minimize the loss of volatile components.

Quality Control:

Throughout the production process, quality control measures are implemented to ensure the desired product specifications are met. This includes monitoring key parameters such as pH, active ingredient content, color, odor, and purity.

Usage and Application

Linear Alkylbenzene Sulfonic Acid (LABSA) finds extensive use in various industrial and household applications due to its effective cleaning properties. Some of its uses and applications include:

 Detergent Production:

LABSA is a key ingredient in the manufacture of laundry detergents, dishwashing liquids, and other household cleaning products. It serves as a primary surfactant, helping to lower the surface tension of water and facilitate the removal of dirt, grease, and stains from surfaces.

Industrial Cleaners:

Sulfonic Acid is utilized in the formulation of industrial cleaners for applications such as degreasing, surface cleaning, and industrial equipment maintenance. Its strong cleaning power makes it suitable for removing tough stains and contaminants from industrial surfaces.

Textile Processing:

LABSA is employed in the textile industry for processes such as textile wetting, scouring, and de-sizing. It helps to remove impurities, oils, and sizing agents from fabrics during various stages of textile processing.

 Agricultural Applications:

LABSA is used in the formulation of agricultural adjuvants and pesticides to enhance the spreading and wetting properties of agricultural sprays. It helps to improve the efficacy of pesticides by ensuring uniform coverage on plant surfaces.

Emulsifier and Wetting Agent:

LABSA acts as an emulsifier and wetting agent in various applications, including the formulation of paints, coatings, and inks. It helps to disperse insoluble substances in liquids and improves the wetting and spreading characteristics of formulations.

Leather Processing:

LABSA is employed in the leather industry for processes such as degreasing, soaking, and deliming during leather processing. It assists in the removal of fats, oils, and impurities from raw hides and skins, preparing them for further processing.

Overall, LABSA plays a crucial role in numerous industries and applications where effective cleaning, wetting, and emulsifying properties are required. Its versatility and efficacy make it a widely used ingredient in various formulations.

safety

When handling Linear Alkylbenzene Sulfonic Acid (LABSA), it’s important to follow safety precautions to minimize the risk of accidents and exposure. Here are some safety tips for handling LABSA:

Personal Protective Equipment (PPE):

Wear appropriate personal protective equipment, including chemical-resistant gloves, safety goggles or face shields, and protective clothing such as lab coats or aprons. Avoid skin and eye contact with LABSA.

Ventilation:

Work in a well-ventilated area to prevent the buildup of vapors. If working indoors, use local exhaust ventilation systems to remove fumes and ensure adequate air circulation.

Handling and Storage:

Handle LABSA with care to avoid spills and splashes. Use suitable containers for storage and ensure they are properly labeled with hazard information. Store LABSA away from incompatible materials and sources of heat or ignition.

Avoid Mixing:

Do not mix LABSA with incompatible chemicals, especially strong oxidizers or alkalis, as this can result in hazardous reactions or the release of toxic gases.

First Aid:

Be familiar with first aid procedures in case of exposure or accidents. In case of skin contact, immediately rinse the affected area with plenty of water and remove contaminated clothing. For eye contact, flush your eyes with water for at least 15 minutes while holding your eyelids open. Seek medical attention if irritation persists.

Spill Response:

In the event of a spill, contain the spill immediately using absorbent materials such as sand, vermiculite, or commercial spill kits. Wear appropriate protective equipment during cleanup and follow established spill response procedures. Dispose of contaminated materials according to local regulations.

Emergency Procedures:

Familiarize yourself with emergency procedures and know the location of safety showers, eyewash stations, and other emergency equipment. In case of a large spill, fire, or other emergencies, evacuate the area and notify appropriate personnel.

Training:

Ensure that personnel handling LABSA are properly trained in safe handling procedures, emergency response, and the use of personal protective equipment.

By following these safety tips and procedures, you can help minimize the risks associated with handling Linear Alkylbenzene Sulfonic Acid (LABSA) and ensure a safe working environment.

Packing of Sulfonic Acid

Linear Alkylbenzene Sulfonic Acid (LABSA) is typically packed in various types of containers suitable for storage, transportation, and use. The packaging for LABSA can vary depending on factors such as the quantity, transportation mode, and specific requirements of the customer or industry. Some common types of packaging for LABSA include:

Drums:

LABSA is often packed in steel or plastic drums with capacities ranging from 30 to 250 kilograms. Drums provide a secure and durable packaging option for handling and transportation.

Intermediate Bulk Containers (IBCs):

Larger quantities of LABSA may be packed in intermediate bulk containers, also known as IBC totes or bulk tanks. These are large, reusable containers typically made of plastic or steel and have capacities ranging from hundreds to thousands of liters.

Bulk Tankers:

Tanker trucks or railcars may be used for the bulk transportation of LABSA. These specialized vehicles, designed to transport liquids in large quantities, are equipped with safety features to ensure secure transportation.

Flexitanks:

Flexitanks, which are flexible containers made of polyethylene or similar materials, are utilized for the transportation of liquids inside standard shipping containers. They provide a cost-effective and efficient packaging solution for international shipments of Sulfonic Acid.

Bottles or Jerry Cans:

Sulfonic Acid may also be packed in smaller containers such as plastic bottles or jerry cans for retail or consumer use. These containers typically have capacities ranging from a few liters to tens of liters and are suitable for smaller-scale applications.

 

Overall,LABSA plays a crucial role in numerous industries and applications where effective cleaning, wetting, and emulsifying properties are required. Its versatility and efficacy make it a widely used ingredient in various formulations.

LABSA TECHNICAL DATA SHEET

SPECIFICATION	STANDARD	RESULTS	UNCERTAINTY IN MEASUREMENT	ISIRI NO
Molecular weight(g/mol)	323	323	± 0.2	ISIRI 12028
Free Oil	Max 2.0	1.59	± 0.05	ISIRI 3513
Active Matter %	(96-98)	96.2	± 0.2	ISIRI 3513
Color (Klett)((4%(w/w))	Max 70	13	± 1	ISIRI 3513
Sulfuric Acid %	Max 1.8	1.74	± 0.05	ISIRI 3513
Water %	Max 0.5	0.45	± 0.02	ISIRI 18481
Appearance	60.05g/molBrown viscose liquid	Light Brown viscose liquid	–	ISIRI 3513