CAS 27176-87-0 corresponds to Dodecylbenzenesulfonic acid (DBSA or LABSA 96%), which is an important precursor of anionic surfactants. It is a brownish viscous liquid widely used in detergents, emulsifiers, and organic synthesis catalysts.

Basic Information
-Chinese name: Dodecylbenzenesulfonic acid
-English name: Dodecylbenzenesulfonic acid
-Alias: Linear Alkylbenzenesulfonic Acid (LABSA), Laurylbenzenesulfonic Acid
-Molecular formula: C ₁₈ H ∝₀ O ∝ S
-Molecular weight: 326.49
-EINECS number: 248-289-4
-Appearance: light yellow to brown viscous liquid
-Acidity: Strong organic acid (pKa ≈ 1.8)

Main physical and chemical properties
1. Density: Approximately 1.05-1.06 g/cm ³ (20 ° C)
2. Melting point: about 10 ° C
3. Boiling point: about 315 ° C under normal pressure (some data shows that the decomposition boiling point is 82 ° C, which is actually a misreading or under specific conditions)
4. Solubility: Easily soluble in water (exothermic upon dilution), alcohols, and ethers; Insoluble in non-polar solvents (such as n-hexane)
5. Stability: It releases heat when in contact with water and is corrosive; Avoid contact with alkali, strong oxidants, and metals

Core purpose
-Detergent raw materials: Sodium dodecylbenzenesulfonate (LAS), ammonium salts, etc. are prepared by neutralization, and are the main active ingredient precursors for laundry detergent, dishwashing detergent, and shampoo
-Industrial emulsifier: used for pesticide and asphalt lotion formula
-Organic catalyst: used as a substitute for sulfuric acid for esterification and amino baking paint curing reactions
-New materials field: Doping agents for conductive polymers (such as polyaniline)

Safety and Storage
-Hazard: Corrosive substances (GHS symbol GHS05), causing skin burns and severe eye damage
-Protection requirements: Wear protective clothing, gloves, and goggles; Avoid inhaling vapors
-Transport number: UN 2924 (Corrosive Class 8)
-Storage conditions: Store in a cool, dry and sealed place, away from sources of fire and incompatible substances

Note: This CAS number usually refers to mixtures with predominantly straight chain structures (C10-C13 alkyl chains), and branched isomers have poor performance and biodegradability. Modern industry often uses straight chain processes (LABSA).

Products :

LABSA 96% CAS 27176-87-0 (Dodecylbenzenesulfonic acid /Linear Alkylbenzenesulfonic Acid/Linear Alkylbenzene sulfonic Acid）
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