Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 939-717-7 | CAS number: 1474044-79-5
- 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
Endpoint summary
Administrative data
Description of key information
Calcium bis( di c8-c10, branched, c9 rich, alkylnaphthalene sulphonate) is irritating to skin and eyes. It is not corrosive.
Key value for chemical safety assessment
Skin irritation / corrosion
Link to relevant study records
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study generally follows accepted procedures (Draize method) with an appropriate number of animals and dosing regime.
- Qualifier:
- according to guideline
- Guideline:
- other: FHSLA. CFR Title 21, para. 191.11.
- Deviations:
- not specified
- GLP compliance:
- no
- Species:
- rabbit
- Strain:
- New Zealand White
- Type of coverage:
- occlusive
- Preparation of test site:
- other: abraded and shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- Fivetenths of a milliliter (0.5 ml) of test material was placed under each patch. The patches were
secured with tape and covered with a plastic trunk band to pjevent evaporation. - Duration of treatment / exposure:
- The rabbits were immobil ized in head stocks for 24 hours at which time the patches were
removed and the rabbits returned to their cages. - Observation period:
- Skin lesions were evaluated at 24 and 72 hours
- Number of animals:
- 6
- Details on study design:
- The rabbits were prepared by cl ipping the skin of the trunk free of hair. Epidermal abrasions were made over a 2-3 cm2
area on each rabbit. Two, 2.5 cm2 gauze patches were placed on each rabbit. One second patch over the abraded skin. Five-tenths
of a mill il iter of test material was placed under each patch. The patches were secured with tape and covered with a plastic
trunk band to pjevent evaporation. The rabbits were immobil ized in head stocks for 24 hours at which time the patches were
removed and the rabbits returned to their cages. - Irritation parameter:
- erythema score
- Basis:
- mean
- Remarks:
- average of 6
- Time point:
- other: 72
- Score:
- ca. 8.99
- Reversibility:
- no data
- Remarks on result:
- other: see attached tables for details
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 72
- Score:
- ca. 0.66
- Reversibility:
- no data
- Irritation parameter:
- primary dermal irritation index (PDII)
- Basis:
- mean
- Time point:
- other: 72
- Score:
- ca. 2.41
- Reversibility:
- no data
- Irritant / corrosive response data:
- See table.
- Other effects:
- No clinical symptoms reported.
- Interpretation of results:
- Category 2 (irritant) based on GHS criteria
- Conclusions:
- NASUL 729 was determined to be a moderate skin irritant.
- Executive summary:
NASUL 729 was evaluated for skin irritation following U.S. Federal Hazardous Substances Labeling Act (FHSLA) procedures. Rabbits were prepared by clipping the skin of the trunk free of hair. Epidermal abrasions were made over a 2-3 cm2area on each rabbit. Two, 2.5 cm2gauze patches were placed on each rabbit. One patch on the intact skin and a second patch over the abraded skin. Five-tenths of a milliliter (0.5) of test material was placed under each patch. The patches were secured with tape and covered with a plastic trunk band to prevent evaporation. The rabbits were immobilized in head stocks for 24 hours at which time the patches were removed and the rabbits returned to their cages. Skin lesions were evaluated at 24 and 72 hours and scored. NASUL 729 had primary irritation score of 2.41 indicating moderate skin irritation.
Reference
Evaluation of Skin Reactions and Scoring Criteria
Erythema and Eschar Formation |
Exposure Time hours |
Average Exposure Unit Value |
Intact Skin |
24 |
1.83 |
|
72 |
2.66 |
Abraded Skin |
24 |
2.17 |
|
72 |
2.33 |
Edema Formation |
Subtotal |
8.99 |
Intact Skin |
24 |
0 |
|
72 |
0.33 |
Abraded Skin |
24 |
0 |
|
72 |
0.33 |
|
Subtotal |
0.66 |
|
Total |
9.65 |
|
Primary Irritation Score (Index)
|
2.41 |
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irritating)
Eye irritation
Link to relevant study records
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study with no significant deviations.
- Qualifier:
- according to guideline
- Guideline:
- EPA OTS 798.4500 (Acute Eye Irritation)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- Three male and three female (nulliparous and non-pregnant) New Zealand White rabbits were obtained from Hazleton Research Products, Inc.,
Denver, PA. and held in quarantine for 12 days. During quarantine the animals appearance and behavior were recorded daily.
The animals were individually housed in suspended cages with wire mesh bottoms. The absorbent paper under the cages was changed daily. The animals were fed a restricted diet (125 glday) of Purina High Fiber Lab Chow #5326 and received well water gd libitum. No contaminant was
expected to be present in the feed or water at a level sufficient to interfere with the study. The animals were transferred to another room on day 2 of the study. The room temperature of the first room was maintained at 66-69° F with a relative humidity of 34-82%. The room temperature of the
second room was maintained at 66-70° F with a relative humidity of 26-71%. - Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- 0.1 ml
- Duration of treatment / exposure:
- Single treatment with 10 days of observation
- Observation period (in vivo):
- Both eyes were grossly examined and the test eye scored by the Draize method at 1,24,48, and 72 hours and at 7 and 10 days after instillation of the test material.
- Number of animals or in vitro replicates:
- 3 male and 3 female
- Details on study design:
- The eyes were prescreened for ocular defects and/or irritation on the day prior to testing. The left eye was designated as the test eye while the
right eye was designated as the control. A 0.1 ml aliquot was drawn into a 1 cc syringe and instilled into the left conjunctival sac by gently pulling
the lower lid away from the eyeball to form a cup. The eyelids were gently held together for approximately one second after instillation.
Both eyes were grossly examined and the test eye scored by the Draize method (See Appendix 1) at 1,24,48, and 72 hours and at 7 and 10 days after instillation of the test material. All eyes were also examined for the presence of corneal ulcerations at 24 hours using 2% sodium fluorescein.
Animals with ulcerations were reexamined with 2% fluorescein sodium during subsequent observations until the ulcerations were no longer
apparent. A plastic Elizabethan style collar was placed on each animal to prevent mechanical irritation of the eye. Mortality checks were performed daily. Clinical observations were performed daily except on the weekend. The animals were euthanized by overexposure to carbon dioxide on day 10 of the study. - Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.8
- Max. score:
- 1.5
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0.1
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 2.8
- Reversibility:
- fully reversible within: 10 days
- Irritation parameter:
- conjunctivae score
- Remarks:
- swelling
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 2.5
- Max. score:
- 3.3
- Reversibility:
- fully reversible within: 10 days
- Irritant / corrosive response data:
Slight corneal opacities and iridial irritation were noted in 3/6 animals and moderate to severe conjunctival irritation in all animals at 1 hour. The number of animals with corneal opacities increased to 6/6 at 24 hours. The density of several opacities increased and corneal ulcerations
were present in all animals. The number of corneal opacities decreased to 3/6 at 48 hours and 1/6 at 72 hours. All opacities were clear by day 7. The number of corneal ulcerations decreased to 3/6 at 48 hours and 0/6 at 72 hours. Moderate to severe conjunctival irritation was still present
at 24 hours and diminished slowly over the remainder of the study.- Other effects:
- Soft stool was noted in all animals on day 1 and in 2/6 animals on day 2. Decreased food consumption and decreased fecal output were noted in 2/6 animals on days 1 and 6, respectively. No other clinical observations were noted.
II. - Interpretation of results:
- Category 2 (irritating to eyes) based on GHS criteria
- Conclusions:
- NA-SUL 729 is also an eye irritant according to EC guidelines because the combined mean conjunctival swelling score (24-, 48-, 72-hours) is
greater than 2.0. - Executive summary:
The acute ocular irritation of NA-SUL 729 was evaluated in three male and three female New Zealand White rabbits. A single 0.1 ml aliquot of the test material was instilled into the left conjunctival sac of each animal. The eye was gently held shut for approximately one second. A plastic Elizabethan collar was placed on each animal after dosing to prevent access to the test site. Both eyes were examined and the test eye scored according to the Draize method at 1, 24, 48, and 72 hours and at 7 and 10 days after instillation of the test material. All the test eyes were examined for the presence of corneal ulcerations at 24 hours with 2% sodium fluorescein. Those eyes with ulcerations were restained during each observation period until the ulceration healed. Clinical observations were recorded at approximately 1- and 4-hours after dosing and daily thereafter except on the weekend for the remainder of the study. Body weights were not recorded. All animals were sacrificed by over-exposure to carbon dioxide on day 10. Slight corneal opacities and iridial irritation was observed in 3/6 animals and moderate to severe conjunctival irritation in all animals at 1 hour. Corneal opacities were present in all animals at 24 hours along with corneal ulcerations. The number of corneal opacities decreased to 3/6 at 48 hours, 1/6 at 72 hours, and 0/6 by day 7. The number of corneal ulcerations decreased to 3/6 at 48 hours and 0/6 at 72 hours. Moderate to severe conjunctival irritation was still present at 24 hours and diminished slowly over the remainder of the study. The 24-hour mean Draize score was 33.0/110. The mean EC (24-,48-, and 72-hour) ocular irritation scores were 0.8 for corneal opacity, 0.0 for iritis; 2.0 for conjunctival redness; and 2.5 for conjunctival swelling. Soft stool was noted in all animals on day 1 and in 2/6 animals on day 2. Decreased food consumption and decreased fecal output were noted in 2/6 animals on days 2 and 6, respectively. No other clinical observations were noted.
Reference
Observation |
1-Hr |
24-Hrs |
48-Hr |
72-Hr |
7-Days |
10-Days |
Mean Days1-3 |
Corneal Opacity |
0.3 |
1.5 |
0.7 |
0.2 |
0.0 |
0.0 |
0.8 |
Iritis |
0.5 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Conjunctival Redness |
2.7 |
2.8 |
2.0 |
1.2 |
0.7 |
0.0 |
2.0 |
Conjunctival Swelling |
2.3 |
3.3 |
2.2 |
2.0 |
0.5 |
0.0 |
2.5 |
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Justification for classification or non-classification
Based on available in-vivo skin and eye-irritation studies the substance is to be classified into Category 2 for skin and eye irritation according to CLP (Regulation EC No 1272/2008) and Xi, R36/38 according to DSD (Directive 67/548/EEC).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.