What is Sodium Dodecyl Benzene Sulfonate CAS 25155-30-0?

Sodium Dodecyl Benzene Sulfonate CAS 25155-30-0 is a widely used anionic surfactant with the molecular formula C18H29NaO3S and molecular weight 348.48. It is commonly known as SDBS or sodium dodecylbenzenesulfonate and is supplied as a white to light yellow powder, flake or small-granule detergent raw material.

Is CAS 25155-30-0 the same as LAS, SDBS or DDBSA sodium salt?

In detergent trade these names are often used around the same product, but they are not automatically interchangeable for every grade. CAS 25155-30-0 is sodium dodecylbenzenesulfonate, frequently described as SDBS or a hard-type/branched alkylbenzene sulfonate, while DDBSA is the corresponding acid intermediate. Confirm the CAS, alkyl-chain profile, active matter and intended detergent grade before treating two trade names as identical.

What do LAS-60, LAS-70, LAS-80 and LAS-90 mean?

Those names refer to common detergent-grade concentrations of sodium dodecylbenzene sulfonate, with the number indicating nominal active matter. Typical values are 60, 70, 80 or 90 +/- 2%, with the balance mainly water and inorganic salts. Higher active-matter grades are often used where stronger detergency, less diluent or more efficient freight is required.

What are the main applications of Sodium Dodecyl Benzene Sulfonate?

It is used mainly in household laundry powders, dishwashing liquids, hard-surface cleaners and industrial detergents. It also works as an emulsifier, wetting agent, degreaser, textile-processing aid and antistatic component in selected emulsion or polymer applications.

How does SDBS perform in hard water and high-foam detergent formulations?

SDBS gives strong detergency and rich, stable foam, but its cleaning performance can be reduced in hard water because calcium and magnesium ions interact with the anionic surfactant. Many formulations combine it with builders or chelating agents such as sodium carbonate, zeolite or STPP to maintain performance. It is also compatible with nonionic surfactants for balanced detergent systems.

What safety and handling points should be confirmed for detergent-grade SDBS?

SDBS is classified as harmful if swallowed and can irritate the skin and eyes, so workers should avoid direct dust contact and use suitable protective equipment. Store it in a dry, well-ventilated area away from strong oxidizers, and keep bags closed to prevent moisture pickup and caking. Finished-product suitability should be reviewed for the intended household or industrial formulation.

Sodium Dodecyl Benzene Sulfonate CAS 25155-30-0

Sodium Dodecyl Benzene Sulfonate (SDBS), CAS 25155-30-0, is a high-foaming anionic surfactant supplied for laundry powders, dishwashing liquids, industrial cleaners, textile processing, construction and agricultural emulsification. Confirm the required active matter and grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 25155-30-0
Synonyms: SDBS, Sodium dodecylbenzenesulfonate, Dodecylbenzene sulfonic acid sodium salt, Sodium lauryl benzene sulfonate, Benzenesulfonic acid dodecyl- sodium salt
Einecs: 246-680-4
Molecular Formula: C₁₈H₂₉NaO₃S
Grade: Industrial grade / detergent grade
Package: Commonly 25 kg/bag (kraft bag / PP woven bag with inner liner; OEM packing available)

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Product Description

Sodium Dodecyl Benzene Sulfonate, CAS 25155-30-0, also known as SDBS, is a widely used anionic detergent surfactant.

Synonyms: SDBS; Sodium dodecylbenzenesulfonate; Dodecylbenzene sulfonic acid sodium salt; Sodium lauryl benzene sulfonate; Benzenesulfonic acid dodecyl- sodium salt.

CAS: 25155-30-0.

It has a molecular weight of 348.48 and is supplied as a white to light-yellow powder, flake or small-granule detergent raw material.

It is offered in common detergent grades LAS-60, LAS-70, LAS-80 and LAS-90 with nominal active matter of 60–90%.

It gives strong detergency and rich, stable foam, and helps prevent soil redeposition during washing.

It is compatible with other anionic and non-ionic surfactants, as well as builders such as STPP, zeolite and sodium carbonate.

It is used in household laundry powders, dishwashing liquids and hard-surface cleaners.

It is used in heavy-duty industrial cleaners for metal degreasing, machinery cleaning and hard-surface cleaning.

It is used in textile processing as a leveling, scouring and dyeing auxiliary.

It is used as an air-entraining agent in concrete and mortar, and as a flotation agent in mining.

It is used as an emulsifier for pesticides and herbicides in agriculture.

Its cleaning performance can be reduced in hard water, so formulations often combine it with builders or chelating agents.

Confirm appearance, active matter, moisture, pH, inorganic salts, whiteness, solubility, biodegradability, grade and packaging.

Store in a cool, dry, well-ventilated warehouse, away from strong oxidizers and cationic surfactants.

Keep bags tightly sealed and do not stack too high, as the powder is hygroscopic and can cake or clump.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required active matter and grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Sodium Dodecyl Benzene Sulfonate CAS 25155-30-0?

A: Sodium Dodecyl Benzene Sulfonate CAS 25155-30-0 is a widely used anionic surfactant with the molecular formula C18H29NaO3S and molecular weight 348.48. It is commonly known as SDBS or sodium dodecylbenzenesulfonate and is supplied as a white to light yellow powder, flake or small-granule detergent raw material.
Q:
Is CAS 25155-30-0 the same as LAS, SDBS or DDBSA sodium salt?

A: In detergent trade these names are often used around the same product, but they are not automatically interchangeable for every grade. CAS 25155-30-0 is sodium dodecylbenzenesulfonate, frequently described as SDBS or a hard-type/branched alkylbenzene sulfonate, while DDBSA is the corresponding acid intermediate. Confirm the CAS, alkyl-chain profile, active matter and intended detergent grade before treating two trade names as identical.
Q:
What do LAS-60, LAS-70, LAS-80 and LAS-90 mean?

A: Those names refer to common detergent-grade concentrations of sodium dodecylbenzene sulfonate, with the number indicating nominal active matter. Typical values are 60, 70, 80 or 90 +/- 2%, with the balance mainly water and inorganic salts. Higher active-matter grades are often used where stronger detergency, less diluent or more efficient freight is required.
Q:
What are the main applications of Sodium Dodecyl Benzene Sulfonate?

A: It is used mainly in household laundry powders, dishwashing liquids, hard-surface cleaners and industrial detergents. It also works as an emulsifier, wetting agent, degreaser, textile-processing aid and antistatic component in selected emulsion or polymer applications.
Q:
How does SDBS perform in hard water and high-foam detergent formulations?

A: SDBS gives strong detergency and rich, stable foam, but its cleaning performance can be reduced in hard water because calcium and magnesium ions interact with the anionic surfactant. Many formulations combine it with builders or chelating agents such as sodium carbonate, zeolite or STPP to maintain performance. It is also compatible with nonionic surfactants for balanced detergent systems.
Q:
What safety and handling points should be confirmed for detergent-grade SDBS?

A: SDBS is classified as harmful if swallowed and can irritate the skin and eyes, so workers should avoid direct dust contact and use suitable protective equipment. Store it in a dry, well-ventilated area away from strong oxidizers, and keep bags closed to prevent moisture pickup and caking. Finished-product suitability should be reviewed for the intended household or industrial formulation.

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