Anhui Eapearl Chemical is a professional manufacturer of surfactants and cleaning chemical raw materials with self-owned mature sulfonation synthesis supporting production lines and sufficient spot inventories in multiple warehouses nationwide.

I. Basic Product Dossier

1. Fundamental Chemical Information

Common Chinese Name：Linear Alkylbenzene Sulfonic Acid

Industry Abbreviation：LABSA

CAS No. ：27176-87-0 (Industrial mainstream grade with mixed C10~C13 alkyl groups)

EINECS No.：248-289-4

General Molecular Formula：C18H30O3S

Average Molecular Weight：321±4 g/mol

Applicable National Standard GB/T 8447-2008 Industrial Linear Alkylbenzene Sulfonic Acid

Standard Grade Industrial grade with 96% high active matter content

Appearance & Property at 25℃ Brown viscous organic acidic oily liquid

Standard Packaging 210~225kg galvanized plastic drums, 1000L IBC Tote Tanks

2. National Standard & Internal Control Physicochemical Indicators

Test Item	National Standard Requirement	Eapearl Premium Internal Control Standard
Active Matter Content	≥96.0%	96.5%~97.5%
Free Sulfuric Acid (Inorganic Acid)	≤1.5%	≤1.2%
Unsulfonated Free Oil	≤2.0%	≤1.6%
Color(Klett value of 5% aqueous solution)	≤50	≤35
Acid Value	180~190 mgKOH/g	183~188 mgKOH/g
Biodegradability	≥90% (OECD 301B Test)	≥93%

II. Molecular Structure & Core Detergency Mechanism

As a professional manufacturer of surface cleaning chemical raw materials, Anhui Eapearl Chemical produces high-purity LABSA via stable sulfonation synthesis process. LABSA is the world’s highest-volume anionic surfactant featuring typical amphiphilic molecular structure: hydrophilic sulfonic acid group (-SO₃H) and hydrophobic linear alkyl carbon chain.

1.Negatively charged hydrophilic sulfonic acid groups rapidly reduce dynamic and static interfacial tension once dissolved in water;

2.Long hydrophobic alkyl chains penetrate grease and particulate contaminants to realize emulsification and dispersion of oil-water phases;

3.Micelles encapsulate stripped contaminants and rely on electrostatic repulsion to prevent redeposition of dirt on substrates;

4.Linear carbon chains contain no branched structures. Compared with outdated branched alkylbenzene sulfonic acid, LABSA achieves drastically improved biodegradability and complies with global environmental control regulations.

Comprehensive Core Performance Advantages of Eapearl LABSA

1.Universal detergency: Excellent stability under acidic, alkaline and hard water conditions without deactivation by calcium and magnesium ions. Over 95% of particulate and oily contaminants on fabrics can be removed within 10–29 min at ambient temperature; detergency is further enhanced under heating at 60℃.

2.Stable & abundant foam: Generates full foam with mild defoaming performance, fully compatible with washing product requirements.

3.Wide formulation compatibility: Can be freely compounded with nonionic surfactants (AEO, fatty alcohol ethers), amphoteric surfactants, soap bases, detergent builders and corrosion inhibitors without delamination or precipitation.

4.Eco-friendly high biodegradability: Linear molecular structure delivers biodegradability ≥93%, meeting OECD and EU REACH environmental limit standards.

5.Outstanding cost-performance: Under equivalent detergency efficiency, its comprehensive procurement cost is lower than mainstream surfactants including SLES, AOS and betaine, serving as the fundamental base raw material for detergent formulations.

III. Standardized Application Scenarios Across All Industries

Engaged in R&D and production of cleaning raw materials, Anhui Eapearl Chemical supplies self-developed surfactant product lines. LABSA is widely adopted in standardized formulations covering daily civil chemicals, industrial cleaning and agrochemical emulsification sectors.

3.1 Daily Civil Washing Chemicals

1.Core active ingredient for laundry powder & concentrated liquid laundry detergent: Recommended addition proportion 5%~28% (5~12% for low-end, 12~16% for mid-range, 16~28% for high-end formulations).

2.Dishwashing detergent & fruit and vegetable cleaner: Neutralized into sodium salt to deliver mild detergency with low residue.

3.Liquid laundry detergent, intimate apparel detergent, laundry soap & washing paste.

4.Special fabric detergent for high-hardness water areas, applicable to well water and underground water.

3.2 Industrial Cleaning Systems

1.Degreaser for metal hardware & electroplating pretreatment: Removes stamping oil, drawing oil and antirust oil to improve coating adhesion.

2.Circulating industrial equipment cleaner & heavy oil floor degreaser.

3.Scouring agent for textile pretreatment, dispersing & wetting auxiliary for dyeing process to remove cotton and linen sizing agents and weaving oil stains.

4.Degreasing agent for leather making & emulsifying dispersant for paper deinking.

3.3 Agrochemical Emulsifying Auxiliaries

Emulsifying and dispersing raw material for pesticide emulsifiable concentrates (EC) and suspension concentrates (SC), applicable to herbicides and insecticides to stabilize oil-water two phases and prevent pesticide liquid delamination and sedimentation.

Basic Formulation Process Guidelines

LABSA is a strongly acidic raw material. It must be neutralized with alkaline agents such as NaOH or triethanolamine to generate LAS sodium salt before being directly used in finished detergent products. Temperature-controlled stirring is required during neutralization to avoid local overheating and discoloration caused by exothermic reaction.

IV. Core Supply Advantages of Anhui Eapearl Chemical LABSA

1.Self-owned production system with nationwide warehouse layout for spot supply of professional cleaning raw materials Anhui Eapearl Chemical integrates synthetic production, warehousing logistics and formulation technical services as a specialized manufacturer of surface cleaning chemical raw materials. Equipped with self-owned stable sulfonation production lines, the company operates standardized chemical warehouses in Nanjing, Shanghai, Hefei and Zibo, enabling same-day allocation and delivery for orders in the Yangtze River Delta region. Our LABSA was showcased as flagship surfactant product at the 2026 IES Industry Exhibition, with annual spot inventory of ten thousand tons to guarantee uninterrupted supply.

2.Full set of compliance export documents for global trade English COA certificates of analysis, GHS-standard MSDS safety data sheets are delivered with each batch of goods. The product is listed in REACH and TSCA substance inventories with complete biodegradability test reports, satisfying customs inspection requirements in Southeast Asia (SIRIM), EU, America and other regions. Our business network covers nearly 200 countries and territories worldwide.

3.Strict closed-loop internal quality control system Three full-item inspections are implemented for incoming raw materials, finished sulfonation products and outgoing goods, with rigid control over three critical impurities: free acid, free oil and color value, eliminating common formulation defects such as yellow discoloration, insufficient foam and poor detergency of finished dishwashing liquid.

4.One-on-one formulation technical support: Equipped with formulation engineers specializing in home and industrial cleaning products, we provide technical guidance on LAS neutralization ratios, optimization of blended systems, hard water formulation adjustments, and pesticide emulsification solutions, effectively addressing customer challenges such as formulation separation, poor cleaning performance, and insufficient foam.

5.Flexible packaging & delivery options 210kg standard plastic drums and IBC tote tanks are available for bulk orders; bulk tank truck delivery can be coordinated for large-volume projects to reduce customers’ subpackaging labor costs.

 

V. Standardized Storage & Operational Safety Specifications

1.This product is an organic corrosive acidic liquid. Operators must wear nitrile gloves, safety goggles and gas masks during all handling procedures.

2.Seal and store in cool, dry warehouses at 15~30℃, separated from strong alkalis, bare metals and strong oxidants; outdoor exposure to sunlight is prohibited.

3.Direct contact with carbon steel and iron containers shall be avoided; plastic-lined containers are recommended for long-term storage.

4.Waste liquid shall be disposed of as acidic industrial hazardous waste in compliance with regulations and shall not be directly discharged into municipal sewage pipelines.

 

 

VI. Conclusion

Linear Alkylbenzene Sulfonic Acid (LABSA) is an irreplaceable fundamental anionic surfactant for detergent, industrial cleaning and agrochemical industries, integrating superior detergency, foaming, emulsification and cost performance. As a professional manufacturer of surface cleaning chemical raw materials with self-owned sulfonation synthesis production lines, Anhui Eapearl Chemical supplies premium 96% LABSA stably to domestic daily chemical manufacturers, industrial cleaning enterprises and foreign trade exporters. Supported by four major warehousing logistics hubs, full set of export compliance documents and exclusive one-on-one formulation technical services, we provide one-stop solutions covering raw material procurement, formulation debugging and overseas export. Customers are welcome to request sample testing and conduct on-site business negotiations.

 

Corporate Information

Anhui Eapearl Chemical Co., Ltd. Shanghai Eapearl Industrial Co., Ltd. Overseas Subsidiary: PT Indonesia Eapearl Chemical

Website: epchems.com Contact: +86-18656201888 (Whatsapp / Wechat) E-Mail: sales@epchems.com

Addresses

Anhui Headquarters No.518, Tongguanshu Valley, Tongguan District, Tongling City, Anhui Province, P.R.China

Shanghai Warehouse & Office No.918 Zhenchen Road, Baoshan Urban Industrial Park, Baoshan District, Shanghai, P.R.China

Overseas Subsidiary (Indonesia) Unit L9-02, 9th Floor, One Belpark Office Tower, Jalan RS. Fatmawati No.1, Pondok Labu, Cilandak, Administrative City of South Jakarta, Republic of Indonesia

www.epchems.com
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