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EC number: 240-210-1 | CAS number: 16066-35-6
- 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

Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 53.6 mg/m³
- Most sensitive endpoint:
- acute toxicity
DNEL related information
- Overall assessment factor (AF):
- 25
- Modified dose descriptor starting point:
- NOAEC
Acute/short term exposure
DNEL related information
Local effects
Acute/short term exposure
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 7.6 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 100
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
DNEL related information
Workers - Hazard for the eyes
Additional information - workers
General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 8.7 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 50
- Modified dose descriptor starting point:
- NOAEC
Acute/short term exposure
DNEL related information
Local effects
Acute/short term exposure
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 2.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
DNEL related information
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 2.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
DNEL related information
General Population - Hazard for the eyes
Additional information - General Population
There are no dermal toxicity studies available for the aromatic sulfonic acids. The dermal toxicity studies for the chemically similar hydrotropes only local effects were observed. The derivation of systemic DNEL's for all exposure routes will therefore be based on oral exposure with adjustments made per OECD guidelines. The starting point was a 500 mg/kg bw/day NOAEL in a rat 28-day repeat dose study with oral exposure. An overall assessment factor of 200 was derived combining a factor of 10 (interspecies), 10 (intraspecies, general population) and 2 (exposure duration subchronic to chronic). The resulting dermal DNEL for the general population is 2.5 mg/kg bw/day. The same valule is used for the oral DNEL.
The general population inhalation starting point was the same study with a NOAEL of 500 mg/kg bw/day. The corrected NOAEC was calculated according to the RIP documents, considering allometric scaling, standard respiratory volume and exposure duration.
The standard respiratory volume of rats is 0.2 L/min/rat = 0.8L/min/kg assuming a standard rat is 250g.
0.38 m3/kg bw in 8 hours
1.15 m3/kg bw in 24 hours
The standard respiratory volume of humans is 0.2L/min/kg bw
The allometric scaling factor is 4 and the standard bw of a human = 70 kg
6.7 m3/person in 8 hours
20 m3/person in 24 hours
10 m3/worker in 8 hours (light work)
In oral studies, a 24h/d exposure period is assumed. For the route-to-route extrapolation (i.e., oral to inhalation), the oral dose is calculated as concentration in air, considering the standard respiratory volume. It is assumed that both oral absorption and inhalation absorption = 100%.
Corrected NOAEC(24h) = oral NOAEL/standard respiratory volume(24h)
= 500 mg/kg bw/d divided by 1.15 m3/kg bw
= 435 mg/m3
The corrected NOAEC of 435 mg/m3 is divided by an assessment factor of 50 (based on 2.5 for interspecies and remaining differences, 10 for intraspecies, and 2 for exposure duration of subchronic to chronic).
The resulting DNEL inhalation = 8.7 mg/m3
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