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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: 209-156-6 | CAS number: 557-09-5
- 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
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Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammable solids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture
- Endpoint:
- pyrophoric solids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.10 (Flammability (Solids))
- Deviations:
- no
- GLP compliance:
- not specified
- Test procedure:
- burning rate test: preliminary screening test
- Burning time:
- 0 s
- Moisture (wt %):
- 0.49
- Remarks on result:
- substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- By the preliminary screening test (A10, 1.6.1) the substance does not ignite and propagate combustion either by burning with flame or smoldering along 200 mm of the powder train within the test period. No further testing is required. The substance is not classified as flammable solid based on GHS criteria.
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: ATEX Products Directive
- Qualifier:
- according to guideline
- Guideline:
- other: VDI-Guideline 2263
- GLP compliance:
- no
- Test procedure:
- burning time (test type not further specified)
- Remarks:
- or specified in description of method (migrated information)
- Burning time:
- 0 s
- Remarks on result:
- other: localized combustion or glowing with practically no spreading
- Interpretation of results:
- non flammable
- Conclusions:
- Octanoic acid, zinc salt, basic is not highly flammable and it´s burning behaviour is classified in class 3: localised combustion or glowing with practically no spreading.
Referenceopen allclose all
By the preliminary screening test (A10) the substance does not ignite and propagate combustion either by burning with flame or smoldering along 200 mm of the powder train within the test period. No further testing is required.
Burning behaviour class 3: localised combustion or glowing with practically no spreading.
Description of key information
Zinc dioctanoate can be designated as not highly flammable, has no pyrophoric properties and does not emit flammable gases in contact with water.
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
Flammability of solids
A test on the flammability was conducted for two solid substances representing (i) one metal carboxylates with a lower hydrocarbon content and a cation in the highest oxidation state (Zn(+II)): octanoic acid, zinc salt, basic (77.5 % carbon content) (ii) one metal carboxylate with a higher carbon content and a cation in a high oxidation state (Zn(+II)): Zinc didocosanoate (91.5 % carbon content). Both tests yielded a result of “not flammable”. Since zinc dioctanoate is also an inorganic metal carboxylate containing the metal cation in the highest oxidised status and an anion of an acid which is less susceptible to any form of oxidation than zinc didocosanoate (i.e. a lower hydro-carbon content 82 %), zinc dioctanoate can be regarded as "not flammable". Further testing is not required in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1.1.1. A classification as flammable solid is not warranted.
Flammability in contact with water
The substance does not contain groups that might lead to a reaction with water or damp air, leading to the development of dangerous amounts of gas or gases which may be highly flammable. Furthermore, long-term industrial experience in practical handling of the substance shows that it does not react with water (cf. Section 1, Annex XI of Regulation (EC) 1907/2006).
Pyrophoric properties
The study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied. Zinc dioctanoate is stable at ambient temperature. It also does not contain any chemical groups that might lead to spontaneous ignition a short time after coming in contact with air at room temperature (ca. 20 °C). Furthermore, long-term industrial experience in handling shows that zinc dioctanoate does not ignite in contact with air (cf. Section 1, Annex XI of Regulation (EC) 1907/2006) .
Justification for classification or non-classification
Zinc dioctanoate does not need to be classified according to CLP Regulation (EC) No 1272/2008 since it is not highly flammable.
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.
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