Registration Dossier
Registration Dossier
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EC number: 207-312-8 | CAS number: 461-58-5
- 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
A test according to OECD guideline 111 was performed to determine the hydrolytical stability of dicyandiamide.
A preliminary test was conducted with an initial test concentration of dicyandiamide of 0.002 mol/L at pH of 4.0, 7.0 and 9.0 at 50 °C. Concentrations of dicyandiamide were measured with HPLC/UV at days 0, 1, 2, 3, 4, and 7.
At pH 7.0 and 9.0 the concentration of dicyandiamide did not change significantly within 7 days. At pH 4.0 the concentration of dicyandiamide at day 7 was 86.6 % of the initial concentration. The hydrolysis rate constant at pH 4.0 was therefore 0.019/d. The concentration of dicyandiamide after 5 days at pH 4.0 was 90.5 % of the initial concentration.
Since less than 10 % of the test substance is hydrolysed in 5 days, in accordance with OECD guideline 111 no further hydrolysis test have to be performed. The test substance dicyandiamide is considered hydrolytically stable.
Additional information
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