Product Overview
- Product Name: Heavy Alkyl Benzene
- Abbreviation: HAB
- CAS No.: 68855-24-3
- Molecular Formula: C₆H₅-R (R: C₁₄H₂₉ ~ C₃₀H₆₁)
- Appearance: Colorless to pale yellow transparent liquid
- Main Components: Dialkylbenzenes, diphenylalkanes, polyalkylbenzenes, polyphenylalkanes, dialkylindanes, dialkyltetralins, etc.
What is Heavy Alkyl Benzene?
Heavy Alkyl Benzene is a by-product of the Linear Alkyl Benzene production process and consists of a mixture of Alkyl Benzenes with relatively high molecular weights. Characterized by a low pour point, high flash point, and excellent thermal and hydrolytic stability, it serves as a valuable raw material; after refining, it can be used to manufacture various high-value-added industrial products.
Key applications of Heavy Alkyl Benzene include lubricant base oils, oilfield enhanced oil recovery (EOR) agents, and industrial cleaning agents.

Why choose Highassay?
Quality: Highassay’s Heavy Alkyl Benzene (HAB) is derived from by-products of the Linear Alkyl Benzene (LAB) production process. Our LAB units allow for the control of HAB yields by adjusting fractionation parameters, ensuring consistent purity and cost-effectiveness.
Customization: For high-volume clients, we offer tailored solutions such as fine-tuning distillation ranges, customized packaging, and long-term fixed-price agreements.
Documentation: We provide essential documentation—including MSDS and COA—which can be supplied with the shipment or obtained in advance by contacting customer service.
Heavy Alkyl Benzene's Packaging, Storage, and Transportation
Packaging specifications: 25 kg/drum, 200 kg/steel drum, ISO tank (available upon customer request)
Storage conditions: Store in a sealed container in a cool, dry place; avoid direct sunlight.
Transportation precautions: Combustible liquid; keep away from sources of ignition. Insoluble in water; in the event of a spill, absorb with sand or soil.

Specification of Heavy Alkyl Benzene
- No.1 Heavy Alkyl Benzene
- No.2 Heavy Alkyl Benzene
- No.3 Heavy Alkyl Benzene
| Items | Specification | Test Method |
| Appearance | Colorless transparent liquid | Visual Inspection |
| Density (20℃)g/cm2 | 0.865-0.875 | GB/T 1884 |
| Kinematic Viscosity (40°C)mm2/s | 5.0-9.0 | GB/T 265 |
| Flash Point (Open Cup)℃ | ≥140 | GB/T 3536 |
| Color | ≤0.5 | GB/T 6540 |
| Bromine Number (as Br) | ≤1 | GB/T 5177 |
| Pour Point(℃) | ≤-60.0 | GB/T 510 |
| Distillation Range(℃) | ||
| 5% Volume Fraction(℃) | ≥310 | GB/T 9168 |
| 95% Volume Fraction(℃) | ≤350 | GB/T 9168 |
| Items | Specification | Test Method |
| Appearance | Colorless or Pale Yellow Transparent liquid | Visual Inspection |
| Density (20℃)g/cm2 | 0.870-0.885 | GB/T 1884 |
| Kinematic Viscosity (40°C)mm2/s | 16.0-25.0 | GB/T 265 |
| Flash Point (Open Cup)℃ | ≥180 | GB/T 3536 |
| Color | ≤3.0 | GB/T 6540 |
| Bromine Number (as Br) | ≤4.0 | GB/T 5177 |
| Pour Point(℃) | ≤-40 | GB/T 510 |
| Distillation Range(℃) | ||
| 5% Volume Fraction(℃) | ≥330 | GB/T 9168 |
| 95% Volume Fraction(℃) | ≤420 | GB/T 9168 |
| Items | Specification | Test Method |
| Appearance | Brown liquid | Visual Inspection |
| Density (20℃)g/cm2 | 0.870-0.885 | GB/T 1884 |
| Kinematic Viscosity (40°C)mm2/s | ≥40 | GB/T 265 |
| Flash Point (Open Cup)℃ | ≥200 | GB/T 3536 |
| Color | ≤5.0 | GB/T 6540 |
| Pour Point(℃) | ≤-30 | GB/T 510 |
| Distillation Range(℃) | ||
| 5% Volume Fraction(℃) | ≥370 | GB/T 9168 |
| 95% Volume Fraction(℃) | ≤500 | GB/T 9168 |
LAB is the primary product used to manufacture biodegradable detergents, whereas HAB is a by-product of the LAB production process. HAB features higher molecular weight, higher viscosity, and superior thermal stability, making it suitable for industrial applications such as lubricants and oilfield chemicals.
High-quality HAB should be a colorless to pale yellow transparent liquid. A lighter color generally indicates fewer impurities and higher purity, which is beneficial for subsequent sulfonation reactions and the quality of the final product.
Yes, we do. We offer flexible minimum order quantities (MOQ) to facilitate sample testing and process validation for our customers.
The standard MOQ for trial orders is 1 drum (200 kg); for commercial orders, the MOQ is 1 metric ton (5 drums) or more.
We determine pricing on a case-by-case basis depending on specific requirements; please feel free to contact us for a quote.
Highassay offers three grades of Heavy Alkyl Benzene, allowing you to select the grade best suited to your production requirements:
Lubricant and grease manufacturers
- Grade 1: Prioritizes excellent low-temperature fluidity and electrical insulation properties; targeted at the refrigeration, aviation, and power industries.
- Grade 2: A versatile, cost-effective base oil suitable for general industrial applications.
- Grade 3: Features high viscosity and high-temperature resistance; suitable for heavy-load and high-temperature operating conditions.
Oilfield chemical enterprises (e.g., EOR agent manufacturers, oilfield service companies)
- Grade 2 is the preferred choice; upon sulfonation, it yields Heavy Alkyl Benzene Sulfonate, a key raw material for degreasing surfactants.
Fine chemical and additive enterprises (e.g., manufacturers of industrial cleaners, rubber additives, or asphalt modifiers)
- Cleaning agents: Grades 2 and 3 can be used to produce Heavy Alkyl Benzene Sulfonic Acid for industrial degreasing and metal cleaning.
- Rubber/Asphalt: Grade 3 serves as a plasticizer or modifier to enhance product temperature resistance and processability.




