Linear Alkyl Benzene (LAB) chemical structure benzene ring with linear C10-C13 alkyl side chain, CAS 67774-74-7, surfactant

Linear Alkyl Benzene

CAS NO. 67774-74-7

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Linear Alkyl Benzene LAB surfactant detergent intermediate

Product Description

Applications

Linear Alkyl Benzene (LAB) — CAS 67774-74-7

Nexal Inc. supplies Linear Alkyl Benzene (LAB, CAS 67774-74-7) as a high-purity industrial-grade petrochemical intermediate manufactured to GB/T 5177-2017. With a typical molecular composition of C₆H₅-C_nH_2n+1 (n = 10–13) and an average molecular weight of 238–250, LAB is the principal feedstock for the synthesis of linear alkylbenzene sulfonate (LAS) — the most widely used biodegradable anionic surfactant in the global detergent industry. Nexal stocks LAB in drum, IBC, ISO tank, and flexitank packaging.

Product Specifications

Parameter	Specification
Product Name	Linear Alkyl Benzene (LAB) Industrial Grade
CAS Number	67774-74-7
EC Number	267-051-0
Chemical Formula	C₆H₅-C_nH_2n+1 (n = 10–13)
Average Molecular Weight	238–250
Appearance	Clear, water-white bright liquid, no suspended matter
Density (20°C)	0.855–0.870 g/cm³
Color (Hazen)	≤ 10
Refractive Index (20°C)	1.4820–1.4850
Distillation Range	5% > 280°C \| 95% ≤ 310°C
Initial Boiling Point	278°C (101.325 kPa)
Melting / Freezing Point	-70°C
Vapor Pressure (25°C)	0.013 hPa
Auto-Ignition Temperature	227°C
LAB Content (mass fraction)	≥ 94.0% High Purity
2-Phenyl Isomer	10–20% Medium 2-Phenyl
Sulphonatability	≥ 98.6%
Bromine Number	≤ 0.01 gBr/100g
Water Content	< 0.01%
log K_ow	7.9 (25°C)
Bioaccumulation (BCF)	35 — Low
Applicable Standard	GB/T 5177-2017
GHS Classification	Aspiration Hazard Cat. 1 (H304) — refer to SDS Section 2
Transport Classification	Not regulated for transport (IMDG / IATA / JT/T 617-2018)
Regulatory Inventories	Listed on TSCA, DSL, EC, NZIoC, PICCS, KECL, AIICS, ENCS, TECI, INSQ, TCSI, IECSC
Packaging Options	Steel drum (180 kg) • IBC tote (~950 kg) • ISO tank (20 MT) • Flexitank (24 MT) • Bulk chemical tanker
Storage	Tightly closed containers, dry & well-ventilated, away from heat / sparks / open flame
Origin	Nexal sources from qualified international manufacturing partners

✓ All values reflect the GB/T 5177-2017 industrial grade specification. Lot-specific Certificates of Analysis (CoA) are issued with every shipment.

Linear Alkyl Benzene has served as the foundation feedstock of the modern synthetic-detergent industry since the 1960s, when it replaced branched alkylbenzene to meet biodegradability requirements. The following application classes represent uses that have been established in the public domain for several decades.

Industrial Application Classes

• Anionic Surfactant Manufacturing (LAS / LABSA)

LAB is sulfonated with oleum or SO₃ gas to produce linear alkylbenzene sulfonic acid (LABSA), which is then neutralized — typically with sodium hydroxide — to yield linear alkylbenzene sulfonate (LAS). This pathway has been the dominant industrial route to biodegradable anionic surfactant for synthetic detergent since the 1960s.

Productos finales: LABSA (acid form), sodium LAS, ammonium LAS, triethanolamine LAS, calcium LAS.

• Household & Personal-Care Cleaning Formulations

LAS derived from LAB is a class of surfactant that has been incorporated into laundry powder, laundry liquid, dishwashing liquid, hand-soap base, hard-surface cleaners, and toilet-bowl cleaners for many decades. The combination of cleaning performance, hard-water tolerance, low cost, and ready biodegradability has made it one of the most widely consumed surfactants in the global household-care category.

Productos finales: laundry powder concentrates, liquid laundry detergent, dishwashing concentrate, multi-purpose cleaners.

• Industrial & Institutional (I&I) Cleaning Chemicals

In the I&I cleaning sector, LAS-based formulations have been used as a class of detergency builder in heavy-duty degreasers, vehicle-wash concentrates, industrial floor cleaners, food-plant CIP (Clean-In-Place) chemicals, and agricultural adjuvant blends. The medium 2-phenyl isomer content (10–20%) of this LAB grade provides a balanced performance profile suitable for both liquid and powder I&I formulations.

Productos finales: vehicle-wash chemicals, industrial degreasers, alkaline floor cleaners, agricultural wetting agents.

• Specialty Surfactant & Emulsifier Intermediates

Beyond the principal LAS route, LAB has served as an intermediate for a class of specialty surfactants and process aids used historically in oilfield chemicals, emulsion-polymerization systems, textile auxiliaries, leather processing, and agricultural-chemical emulsifiers — uses that have been published in technical literature for many decades.

Productos finales: specialty sulfonated derivatives, emulsifier blends, textile wetting agents, oilfield surfactants.

Application disclaimer: The application classes described above are general historical uses of Linear Alkyl Benzene that are well-established in the public technical literature. Nexal Inc. does not recommend any specific brand-name formulation, dosage, or end-product design. Customers are responsible for validating LAB suitability — including 2-phenyl isomer profile, sulphonatability, and color requirements — for their own formulation through their own R&D and quality-assurance protocols. Final compliance with regional product regulations (US TSCA, EU REACH, US EPA Safer Choice, and ecolabel programs) is the responsibility of the formulator.