ジトリデカン-1-イル=フタラート

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

To fight fire use dry chemical, carbon dioxide.

Water or foam may cause frothing.

SMALL SPILLS AND LEAKAGE: If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.

Phthalate esters are endocrine disruptors. Animal studies have shown that they disrupt reproductive development and can cause a number of malformations in affected young, such as reduced anogenital distance (AGD), cryptorchidism, hypospadias, and reduced fertility. The combination of effects associated with phthalates is called 'phthalate syndrome’. (A2883)

EC50; Species: Pseudokirchneriella subcapitata (Green algae); Conditions: freshwater, static, 22-24 °C, pH 7.6-7.9, hardness 25-50 mg/L CaCO3, alkalinity 25-50 mg/L CaCO3; Concentration: >600 ug/L for 96 hr; Effect: decreased population abundance /> or =96% purity/

EC50; Species: Daphnia magna (Water flea, age < or =24 hr); Conditions: freshwater, static, 22 °C, pH 7.6-7.9, hardness 25-50 mg/L CaCO3, alkalinity 25-50 mg/L CaCO3; Concentration: >50 ug/L for 48 hr; Effect: intoxication, immobilization /> or =95% purity/

LC50; Species: Americamysis bahia (Opossum shrimp, age < or =24 hr); Conditions: freshwater, static, 20 °C, pH 7.6-7.9, hardness 25-50 mg/L CaCO3, alkalinity 25-50 mg/L CaCO3; Concentration: >800 ug/L for 96 hr /> or =95% purity/

LC50; Species: Cyprinodon variegatus (Sheepshead minnow, juvenile, length 6-17 mm); Conditions: freshwater, static, 22 °C, pH 7.6-7.9, hardness 25-50 mg/L CaCO3, alkalinity 25-50 mg/L CaCO3; Concentration: >650 ug/L for 96 hr /> or =95% purity/

For more Ecotoxicity Values (Complete) data for DITRIDECYL PHTHALATE (8 total), please visit the HSDB record page.

TERRESTRIAL FATE: Based on a classification scheme(1), an average Koc value of 1.2X10+6(2), indicates that ditridecyl phthalate is expected to be immobile in soil(SRC). Volatilization of ditridecyl phthalate from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 2.2X10-4 atm-cu m/mole(SRC), using a fragment constant estimation method(3). However, adsorption to soil is expected to attenuate volatilization(SRC). Ditridecyl phthalate is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 2.5X10-11 mm Hg(SRC), determined from a fragment constant method(4). Using an inoculum obtained from soil and sewage sludge, ditridecyl phthalate underwent >50% primary biodegradation under aerobic conditions in 28 days, and 37% mineralization to carbon dioxide during the same time period(5).

AQUATIC FATE: Based on a classification scheme(1), an average Koc value of 1.2X10+6(2), indicates that ditridecyl phthalate is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 2.2X10-4 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 16 hours and 12 days, respectively(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The volatilization half-life from a model pond is about 5600 years when adsorption is considered(5). According to a classification scheme(6), an estimated BCF of 3(SRC), from an estimated log Kow of 13.45(7) and a regression-derived equation(8), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Hydrolysis is not expected to be an important process(SRC) based on estimated hydrolysis half-lives of 7.7 years and 280 days at pHs 7 and 8, respectively(9). Ditridecyl phthalate underwent 51.5% biodegradation in a semi-continuous activated sludge test under aerobic conditions in 24 hrs, and complete degradation was observed in 12 days in an activated sludge die-away test under aerobic conditions(10).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), ditridecyl phthalate, which has an estimated vapor pressure of 2.5X10-11 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist solely in the particulate phase in the ambient atmosphere. Particulate-phase ditridecyl phthalate may be removed from the air by wet or dry deposition(SRC). Ditridecyl phthalate does contain chromophores that absorb at wavelengths >290 nm(3) and therefore may be susceptible to direct photolysis by sunlight(SRC).

Phthalate esters are endocrine disruptors. They decrease foetal testis testosterone production and reduce the expression of steroidogenic genes by decreasing mRNA expression. Some phthalates have also been shown to reduce the expression of insulin-like peptide 3 (insl3), an important hormone secreted by the Leydig cell necessary for development of the gubernacular ligament. Animal studies have shown that these effects disrupt reproductive development and can cause a number of malformations in affected young. (A2883)

/AQUATIC SPECIES/ Chronic toxicity studies were performed with commercial phthalate esters and Daphnia magna (14 phthalates) and rainbow trout (Oncorhynchus mykiss) (six phthalates). For the lower-molecular-weight phthalate esters - dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), and butylbenzyl phthalate (BBP) - the results of the studies indicated a general trend in which toxicity for both species increased as water solubility decreased. The geometric mean maximum acceptable toxicant concentration (GM-MATC) for D. magna ranged from 0.63 to 34.7 mg/L. For the higher-molecular-weight phthalate esters - dihexyl phthalate (DHP), butyl 2-ethylhexyl phthalate (BOP), di-(n-hexyl, n-octyl, n-decyl) phthalate (610P), di-(2-ethylhexyl) phthalate (DEHP), diisooctyl phthalate (DIOP), diisononyl phthalate (DINP), di-(heptyl, nonyl, undecyl) phthalate (711P), diisodecyl phthalate (DIOP), diundecyl phthalate (DUP), and ditridecyl phthalate (DTDP) - the GM-MATC values ranged from 0.042 to 0.15 mg/L. Survival was equally sensitive and sometimes more sensitive than reproduction. The observed toxicity to daphnids with most of the higher-molecular-weight phthalate esters appeared to be due to surface entrapment or a mode of toxicity that is not due to exposure to dissolved aqueous-phase chemical. Early life-stage toxicity studies with rainbow trout indicated that survival (DMP) and growth (DBP) were affected at 24 and 0.19 mg/L, respectively.

The following link will take the user to the National Toxicology Program (NTP) Test Agent Search Results page, which tabulates all of the "Standard Toxicology & Carcinogenesis Studies", "Developmental Studies", and "Genetic Toxicity Studies" performed with this chemical. Clicking on the "Testing Status" link will take the user to the status (i.e., in review, in progress, in preparation, on test, completed, etc.) and results of all the studies that the NTP has done on this chemical. [http://ntp-apps.niehs.nih.gov/ntp_tox/index.cfm?fuseaction=ntpsearch.searchresults&searchterm=119-06-2][Available from: http://ntp-apps.niehs.nih.gov/ntp_tox/index.cfm?fuseaction=ntpsearch.searchresults&searchterm=119-06-2]

The average Koc of (14)C-ditridecyl phthalate using three standard USEPA sediments (supplied and characterized by the EPA) was measured at 1.2X10+6(1). According to a classification scheme(2), this Koc value suggests that ditridecyl phthalate is expected to be immobile in soil.

AEROBIC: Using an inoculum obtained from soil and sewage sludge, ditridecyl phthalate underwent >50% primary biodegradation under aerobic conditions in 28 days, and 37% mineralization to carbon dioxide during the same time period(1). Ditridecyl phthalate underwent 51.5% biodegradation in a semi-continuous activated sludge test under aerobic conditions in 24 hrs, and complete degradation was observed in 12 days in an activated sludge die-away test under aerobic conditions(2). When ditridecyl phthalate was incubated with pure cultures of Pseudomonas acidovorans under aerobic conditions, the initial products from this reaction were phthalic acid and tridecyl alcohol(3).

A testing consent order is in effect for ditridecyl phthalate for chemical fate testing. FR citation: 1/9/89.

Pursuant to section 8(d) of TSCA, EPA promulgated a model Health and Safety Data Reporting Rule. The section 8(d) model rule requires manufacturers, importers, and processors of listed chemical substances and mixtures to submit to EPA copies and lists of unpublished health and safety studies. 1,2-Benzenedicarboxylic acid, diundecyl ester is included on this list. Effective date 10/04/82; Sunset date 10/04/92.