Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Information
- Full Name: Sodium Dodecylbenzenesulphonate
- Abbreviation: SDBS, LAS
- Aliases: Linear Alkyl Benzene Sulfonate Sodium, Dodecyl Benzene Sulfonic Acid Sodium Salt
- CAS No.: 25155-30-0
- EINECS No.: 246-680-4
- Molecular Formula: C18H29NaO3S
- Molecular Weight: 348.48
- Chemical Classification: Anionic surfactant, organic fine chemical raw material
- Core Product Features: Excellent decontamination, emulsification, foaming and wetting performance; low cost, stable in hard water, good compatibility with nonionic and cationic surfactants, widely used in daily cleaning, industrial washing and textile fields
2. Detailed Physical & Chemical Properties
2.1 Physical Properties
- Appearance: Light yellow to white flaky solid / white powdery solid; liquid type is light yellow transparent viscous liquid
- Odor: Slight characteristic aromatic odor
- Solubility: Easily soluble in water, ethanol; insoluble in mineral oil, aliphatic hydrocarbons
- pH Value (1% aqueous solution): 7.0 ~ 9.0, weak alkaline
- Melting Point: >300℃ (decompose at high temperature)
- Boiling Point: Decompose above 320℃, no fixed boiling point under normal pressure
- Foaming Property: Rich and stable foam under neutral and weak alkaline conditions
2.2 Chemical Properties
- Ionic Type: Anionic surfactant, dissociates into dodecylbenzenesulfonate anion and sodium ion in water
- Hard Water Resistance: Stable in hard water containing calcium and magnesium ions, not easy to produce precipitate
- Acid & Alkali Stability: Stable under neutral and alkaline environment; easy to hydrolyze under strong acid long-term heating
- Compatibility: Can compound with nonionic surfactants, alkaline builders; incompatible with strong cationic surfactants which will generate precipitates
- Biodegradability: Good biodegradability, low environmental pollution, mild irritation to skin
3. Comprehensive Product Applications
3.1 Daily Cleaning Industry (Main Application)
Core raw material for laundry detergent, dishwashing liquid, hand soap, laundry soap and household all-purpose cleaner. Strong oil stain removal ability, stable foaming, suitable for daily fabric and tableware cleaning.
3.2 Textile Printing & Dyeing Industry
Wetting agent, scouring agent and dyeing auxiliary for cotton, chemical fiber fabrics. It removes spinning oil and fabric impurities, improves dye uniform penetration, reduces fabric surface tension.
3.3 Industrial Washing Field
Metal degreasing agent, circuit board cleaning agent, industrial equipment heavy oil detergent. It emulsifies mineral oil, lubricating oil and mechanical dirt, widely used in machinery manufacturing, electroplating pretreatment.
3.4 Fine Chemical Auxiliaries
Emulsifier for pesticide emulsifiable concentrate, dispersant for pigment and dyestuff, wetting agent for water-based coating and ink, antistatic auxiliary for plastic processing.
3.5 Other Scenarios
Used as oil field mud dispersant, leather degreasing agent, papermaking deinking auxiliary agent.
4. Full Parameter Specification Table
| Item | Detailed Standard Specification |
| CAS No. | 25155-30-0 |
| Molecular Formula | C18H29NaO3S |
| Molecular Weight | 348.48 |
| Appearance | White/light yellow powder or flake solid |
| Melting Point | >300℃ (thermal decomposition) |
| Boiling Point | Decompose over 320℃, no fixed boiling point |
| Active Matter Content | Powder grade ≥90%; Liquid grade 30%/35% |
| Moisture Content | ≤3.0% |
| pH (1% water solution) | 7.0~9.0 |
| Bulk Packaging | 25kg PE inner kraft paper bag / plastic drum |
| Sample Packaging | 1kg / 5kg sealed plastic bag |
| Storage Condition | Sealed cool dry warehouse, avoid moisture absorption; separate from strong acid, cationic surfactants |
| Transportation Standard | General organic fine chemical, non-dangerous goods; waterproof packaging during transit |
| Shelf Life | 18 months under original intact sealed package |
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