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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 936-276-2 | CAS number: -
- 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
Additional information
This substance is an UVCB substance and can be described as a moist solid powder which is insoluble to water. The product consists primarily of sulphur (ca. 35 %), lead (ca. 25 %) and zinc (ca. 17 %) together with minor trace elements such as silver, silicon, aluminium, calcium and iron.
The transformation and dissolution study (OECD guidance 29) was conducted to determine the rate and extent to which metals or sparingly soluble metal compounds can produce toxic bioavailable forms and whether this rate and extent of formation is of concern and should lead to classification. Based on the screening test results (the 24-hour loading rate 100 mg/L), the most critical components for the assessment was lead, with release of 8282 µg/L. The other minor leachable metals were zinc (75.4 µg/L), silver (34.7 µg/L), cadmium (0.48 µg/L) and copper (17.2 µg/L). According to the 7-day and 28-day T/D study results, the most soluble and critical components of this substance are lead and zinc. Therefore, the chemical safety assessment focuses on these bioavailable constituents of the target substance.
The biodegradation and hydrolysis are not relevant fate processes for inorganic substances. The most critical fate properties of this substance is related to the bioaccumulation and adsorption potential of the critical constituents in water compartment, and the adsoprtion to soil compartment and exposure via air deposits related to air emissions from the manufacture and the end-use.
In water compartment, both lead and zinc can occur in both suspended and dissolved form and is partitioned over a number of chemical species. The speciation and solubility of both metals depend from abiotic factors e.g. organic matter content, redox potential, etc. In low pH (≤ 6.5), most of the dissolved lead and zinc are in form of free ions. In higher pH (≥ 6.5), lead is in the form of PbOH+ and PbCO3 (aq) and zinc in Zn(OH)2, Zn(OH)3 and ZnCO3. The amount of dissolved zinc and lead in solution also depends from the organic complexing material present in the water. (LDAI 2008, ECB 2008)
Both lead and zinc have adsorption potential to sediments. The efficiency of adsorption from solution to sediment varies on metal concentration, pH, redox potential (Eh), salinity and concentrations of complexing ligand. Both metals can also be extracted from sediments by desorption. For zinc, desorption can occur under aerobic conditions with high salinity.
In soil, lead and zinc can be present as free ions in solution or adsorbed to reactive soil surfaces (e.g. soil organic matter, clay minerals, Fe and Mn oxides). The distribution between various forms depends on soil properties (e.g. pH, % organic matter, parent material). The mobility of metals in soil depends from the solubility of the metal species and from abiotic parameters, for example higher pH decreases the mobility of metals in the soil. (LDAI 2008, ECB 2008)
In the atmosphere, lead and zinc exist primarily in the aerosols in particulate form. Upon release to the atmosphere, lead and zinc particles are dispersed and ultimately removed from the atmosphere by wet or dry deposition. An important factor in determining the atmospheric transport is particle size distribution and determination of the amount of respirable particles (Lannefors et al. 1983, LDAI 2008).
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.