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EC number: 248-289-4 | CAS number: 27176-87-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Dodecylbenzenesulphonic acid
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- > 96 - < 100 % (w/w)
- Reference substance:
- Dodecylbenzenesulphonic acid
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- Name:
- Dodecylbenzenesulphonic acid
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Related composition:
- Dodecylbenzenesulphonic acid
- > 96 - < 100 % (w/w)
- Reference substance:
- Dodecylbenzenesulphonic acid
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Dodecylbenzenesulphonic acid
- This impurity is considered relevant for the classification and labelling of the substance
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Annex XIII of the REACH Regulation (1907/2006) lays down the criteria for the identification of persistent, bioaccumulative and toxic substances (PBT substances), as well as the information that must be considered for the purpose of assessing the P, B, and T properties of the substance. The criteria require that all available information is to be used, employing a weight-of-evidence approach. Substances must meet all three criteria to be considered PBT.
The substance (dodecylbenzene sulfonic acids (CAS# 27176-87-0)) is from the category of LAB Sulfonic Acids, which includes the following three chemicals:
Benzene sulfonic acid, C10-16 alkyl derivatives (CAS# 68584-22-5),
Benzene sulfonic acid, dodecyl (CAS# 27176-87-0), and,
Benzene sulfonic acid, tridecyl (CAS# 25496-01-9).
Persistence Assessment:
Dodecylbenzene sulfonic acid was found to be readily biodegradable in the OECD 301B test. The result is that it was achieved 69% mineralization after 28 days. This test was carried out according to the guidelines of OECD Guide-line 301 B "Ready Biodegradability: Modified Sturm Test (CO2 evolution)".
Data of following studies are demonstrating rapid biodegradation of C12-LAS (including Na-LAS) under aerobic and anaerobic conditions.
Summary of Biodegradation of Dodecylbenzenesulfonic acid and its salts
Type/ Method
Test material
Degradation
Duration
References
Aerobic/
OECD 301F
C12-LAS
> 60 % of mineralisation
28 days
Temmink and Klapwijk, 2004
Aerobic/
Other
Sodium dodecylbenzenesulfonic acid
75 %
11 days
Cook and Glodman, 1974
Aerobic/
OECD 301B
Dodecylbenzenesulfonic acid
69 % of mineralisation
28 days
USEPA 1992
Aerobic/
Other
C12-LAS
50%
23.1 days
Ward and Larson, 1989
Aerobic and Anaerobic/
Other
Dodecylbenzenesulfonate
40.6%14CO2of mineralization
(aerobic),
51.9%14CO2of mineralization (anaerobic)
42 days
Scheunertet al., 1987
Therefore, Dodecylbenzene sulfonic acid is not persistent.
Bioaccumulation Assessment:
An estimated BCF is 70.79 by BCFWIN Modelbased on log Kow =4.78(US EPA, 2011). Bioconcentrations of total C12-LAS in fathead minnows (Pimephales promelas), channel catfish (Ictalurus punctatus), andamphipod (Hyalella azteca) were investigated during 32 days. At 32 days, total C12-LAS bioconcentration factors (BCFs) for the three species ranged from 36 to 119 (Versteeg and Rawlings, 2003).These experimental and estimated BCF values suggest that dodecylbenzenesulfonic acid has a low potential for bioaccumulation. Therefore, dodecylbenzenesulfonic acidis not bioaccumulative.
Toxicity Assessment:
None of the long-term NOECs for marine or freshwater organisms are 0.01 mg /L. Dodecylbenzenesulfonic acid is not classified as carcinogenic (Category 1 or 2), mutagenic (Category 1 or 2), or toxic for reproduction (Category 1, 2 or 3). There is no evidence of chronic toxicity, as identified by the classifications: T, R48, or Xn, R48 according to Directive 67/548/EEC. Therefore Dodecylbenzenesulfonic acid does not meet the PBT criteria for toxicity.
Summary and overall Conclusions on PBT or vPvB:
Properties Based on the data collected and the discussion above, of Dodecylbenzenesulfonic acid does not meet the criteria for either PBT or VPvBas it is readily biodegraded in the environment, has a very low bioaccumulation potential, low chronic aquatic toxicity and is not classified as carcinogenic, mutagenic, or toxic for reproduction or for chronic toxicity.
Referenceopen allclose all
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