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Diss Factsheets
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EC number: 232-218-9 | CAS number: 7790-69-4
- 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
Dissociation constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- dissociation constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- 2012-07-02
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The available data was calculated from the solubility product of the correspondent substance.
- Dissociating properties:
- yes
- No.:
- #1
- pKa:
- ca. 2.34
- Temp.:
- 25 °C
- Remarks on result:
- other: Calculation basis: study result on water solubility (no pKa but pKsp; sp = solubility product)
- Conclusions:
- Ksp for lithium nitrate could be calculated to 218.87 mol^2/L^2. Expressed in a logarithmic form the Ksp is log Ksp = 2.34.
- Executive summary:
The solubility equilibrium of lithium nitrate exists when the chemical compound in the solid state is in chemical equilibrium with a solution of that compound. The equilibrium is an example of dynamic equilibrium in that some individual molecules migrate between the solid and solution phases such that the rates of dissolution and precipitation are equal to one another. When equilibrium is established, the solution is saturated. The concentration of the solute in a saturated solution is known as the solubility. Dissolution with dissociation is a characteristic of salts like lithium nitrate. Thus, one type of solubility equilibrium is the reversible dissolution with dissociation. Lithium nitrate dissociates in its constituent ions when it is dissolving in water:
LiNO3(s) <=> Li+(aq) +NO3-(aq)
The corresponding solubility product Ksp is expressed as:
Ksp= [Li+]*[ NO3-]
The relation between the solubility S and the solubility product Ksp of a salt AmBn like lithium nitrate is as follows:
S = (Ksp/(m^m * n^n))^(1/(m+n))
m = 1
n = 1
As the solubility S of lithium nitrate at 25 °C is 1020 g/L, the solubility product Ksp could be calculated to be 218.87 mol2/L2. Expressed in a logarithmic form, the Ksp log10 value is 2.34.
Reference
Description of key information
Ksp for lithium nitrate could be calculated to be 218.87 mol^2/L^2. Expressed in a logarithmic form the Ksp is log Ksp = 2.34.
Key value for chemical safety assessment
- pKa at 20°C:
- 2.34
Additional information
The solubility equilibrium of lithium nitrate exists when the chemical compound in the solid state is in chemical equilibrium with a solution of that compound. The equilibrium is an example of dynamic equilibrium in that some individual molecules migrate between the solid and solution phases such that the rates of dissolution and precipitation are equal to one another. When equilibrium is established, the solution is saturated. The concentration of the solute in a saturated solution is known as the solubility. Dissolution with dissociation is a characteristic of salts like lithium nitrate. Thus, one type of solubility equilibrium is the reversible dissolution with dissociation. Lithium nitrate dissociates in its constituent ions when it is dissolving in water:
LiNO3(s) <=> Li+(aq) +NO3-(aq)
The corresponding solubility product Ksp is expressed as:
Ksp= [Li+]*[ NO3-]
The relation between the solubility S and the solubility product Ksp of a salt AmBn like lithium nitrate is as follows:
S = (Ksp/(m^m * n^n))^(1/(m+n))
m = 1
n = 1
As the solubility S of lithium nitrate at 25 °C is 1020 g/L the solubility product Ksp could be calculated to 218.87 mol2/L2. Expressed in a logarithmic form the Ksp log10 value is 2.34.
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