Dioctyl Sodium Sulfosuccinate (DOSS) is an anionic surfactant, chemically named sodium di-2-octyl maleate sulfonate. It appears as a pale yellow to brownish-yellow viscous liquid that dissolves in water to form a milky white solution. This compound significantly reduces surface tension and offers rapid penetration, wetting, emulsification, and foaming properties.

DOSS is prepared through esterification of maleic anhydride and 2-octyl alcohol followed by sulfonation. It is not resistant to strong acids, strong alkalis, heavy metal salts, or reducing agents, and should be used at temperatures below 40℃.

In the dyeing and printing industry, DOSS is primarily used in the mercerizing process of cotton fabrics, accelerating the penetration of concentrated alkali solutions into fibers and reducing treatment time to 30-50 seconds. Treated fabrics can be directly bleached or dyed without scouring, with a recommended dosage of 10-30 g/L.

• Product Name: Dioctyl Sodium Sulfosuccinate (DOSS)
• Other Name: Sodium Diethylhexyl Sulfosuccinate
• Chemical Composition: Sodium dioctyl sulfosuccinate
• Type: Anionic surfactant
• CAS: No. 577-11-7

• Packaged in 200kg iron drums
• Store and transport as a chemical
• Store in a dry, well-ventilated place
• Shelf life: 2 years

• Readily soluble in water, producing milky-white solution with excellent wetting, penetrating, emulsifying, and foaming properties
• Highly effective penetrant for treating cotton, linen, viscose, and their blends
• Treated fabrics can be bleached or dyed directly without scouring
• Improves stains caused by dead cotton fibers and results in softer, fuller hand feel
• Used for dyeing raw cotton and in wettable powders of pesticides
• For excessive foaming, add defoamers such as GP, octanol, or tributyl phosphate