Lauryl sulfate

Using a structure estimation method based on molecular connectivity indices(1), the Koc for dodecyl sulfate can be estimated to be 1.0X10+4(SRC). According to a classification scheme(2), this estimated Koc value suggests that dodecyl sulfate is expected to be immobile in soil.

SHAMPOOS CONTAINING DODECYL SULFATE DID NOT IRRITATE SKIN OF HEALTHY ADULTS OR OF ELDERLY PERSONS WITH VARIETY OF COMMON DISORDERS.

SKIN IS SENSITIZED BY SYNTHETIC DETERGENTS CONTAINING, IN MOST CASES 22% OF ACTIVE COMPONENT AS LAURYL SULFATE, SULFONOL, CATION-ACTIVE AND NON-IONOGENIC PREPN.

Moderately toxic by ingestion.

SURFACTANTS ARE TREATED WITH PSEUDOMONAS TO DECOMPOSE THEM IN WASTEWATER. LF 2102 BACTERIA CULTURE WAS TREATED WITH SOLN CONTAINING 1000 PPM DODECYL ALCOHOL SULFATE. DECOMP WAS 100%.

DISSOLVED ORGANIC CARBON ELIMINATION RATE FROM ACTIVATED SLUDGE WAS 80-100% FOR LAURYL SULFATE.

AEROBIC: Dodecyl sulfate, present at approximately 50 mg/l, reached 70% of its theoretical BOD (93% DOC removal) in 2 weeks using an activated sludge inoculum at 30 mg/l and the Japanese MITI test(1). Initially present at approximately 10 mg/l, 69% DOC removal was measured after 28 days (preceded by a 14 day acclimation period) using the Sturm method(2).

An estimated BCF of 71 was calculated for dodecyl sulfate(SRC), using an estimated log Kow of 2.4(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate.

The Henry's Law constant for dodecyl sulfate is estimated as 1.8X10-7 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that dodecyl sulfate is expected to be essentially nonvolatile from water surfaces(2). Dodecyl sulfate is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 3.2X10-8 mm Hg(SRC), determined from a fragment constant method(3).

Occupational exposure to dodecyl sulfate may occur through inhalation and dermal contact with this compound at workplaces where dodecyl sulfate is produced or used. The general population may be exposed through dermal contact of consumer products containing this compound. (SRC)

Dodecyl sulfate's production and use as a surfactant may result in its release to the environment through various waste streams. If released to air, an estimated vapor pressure of 3.2X10-8 mm Hg at 25 °C indicates dodecyl sulfate will exist solely in the particulate phase in the ambient atmosphere. Particulate-phase dodecyl sulfate will be removed from the atmosphere by wet and dry deposition. If released to soil, dodecyl sulfate is expected to have no mobility based upon an estimated Koc of 1.0X10+4. Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 1.8X10-7 atm-cu m/mole. If released into water, dodecyl sulfate is expected to adsorb to suspended solids and sediment in water based upon the estimated Koc. Dodecyl sulfate is readily biodegraded in water; 70% BOD and 69-93% COD removal have been observed after 2-4 weeks. Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant. An estimated BCF of 71 suggests the potential for bioconcentration in aquatic organisms is moderate. Occupational exposure to dodecyl sulfate may occur through inhalation of dust particles and dermal contact with this compound at workplaces where dodecyl sulfate is produced or used. The general population may be exposed through dermal contact of consumer products containing this compound. (SRC)