硫酸水素ドデシル

Chemical: Sulfuric acid, monododecyl ester

Sulfuric acid, monododecyl ester: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

3.9 [mg/m3]

43 [mg/m3]

260 [mg/m3]

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 1.0X10+4(SRC), determined from a structure estimation method(2), indicates that dodecyl sulfate is expected to be immobile in soil(SRC). Volatilization of dodecyl sulfate from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.8X10-7 atm-cu m/mole(SRC), using a fragment constant estimation method(3). 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(4). Biodegradation of dodecyl sulfate in soil may be an important fate process since it is fairly biodegradable in aqueous biodegradation tests(5).

AQUATIC FATE: Based on a classification scheme(1) and an estimated Koc value of 1.0X10+4(SRC), determined from an estimation method(2), dodecyl sulfate is expected to adsorb to suspended solids and sediment in water(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 1.8X10-7 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). According to a classification scheme(5), an estimated BCF of 71(SRC), from an estimated log Kow of 2.4(6) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is moderate. Biodegradation of dodecyl sulfate in water may be an important fate process since it is fairly biodegradable in aqueous biodegradation tests(8).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), dodecyl sulfate, which has an estimated vapor pressure of 3.2X10-8 mm Hg at 25 °C(2), is expected to exist solely in the particulate phase in the ambient atmosphere. Particulate-phase dodecyl sulfate may be removed from the air by wet and dry deposition(SRC).

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)

METAB OF LAURYL SULFATE IN MAN & RAT WAS VIRTUALLY COMPLETE &...INDEPENDENT OF NATURE OF SALT FORM. COMPD WAS METABOLIZED BY OMEGA-HYDROXYLATION & WAS EVENTUALLY CONVERTED INTO BUTYRIC ACID 4-SULFATE. ... IN MAN A SECOND ROUTE...INVOLVED CLEAVAGE OF SULFATE LINKAGE & OXIDN OF RESULTING ALC /9-16% OF DOSE/.

BUTYRIC ACID 4-SULFATE PROBABLY ARISES BY OMEGA-OXIDATION OF DODECYL SULFATE TO A FATTY ACID-LIKE COMPD, WHICH IS THEN DEGRADED BY BETA-OXIDATION.

BUTYRIC ACID 4-SULFATE, PRODUCT OF DODECYL SULFATE METAB, WAS PARTIALLY DEGRADED NONENZYMICALLY IN RATS TO INORG SULFATE IONS & GAMMA-BUTYROLACTONE. THE LATTER COMPD MAY BE CONVERTED TO GAMMA-HYDROXYBUTYRATE BY ENZYME LACTONASE.

Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics.

Used in shampoos, waste water treatment, and to make its salts (used as surfactants); [HSDB]

Sewer and Wastewater Treatment [Category: Industry]

USED IN SHAMPOOS

IN TREATMENT OF WASTE WATER

CHEM INT FOR SALTS, INCL SODIUM & AMMONIUM, USED AS SURFACTANTS