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EC number: 268-615-9 | CAS number: 68131-33-9 The solution formed by reacting the sodium salts of green liquor with calcium hydroxide.
- 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
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
- Using the static method, a vapour pressure of 2049 Pa at 20 °C and 2695 Pa at 25 °C was measured (EU 440/2008 A.4, OECD 104).
- These values were calculated from the regression of 17 individual measurements.
Key value for chemical safety assessment
- Vapour pressure:
- 2 049 Pa
- at the temperature of:
- 20 °C
Additional information
Using the static method, a vapour pressure of 2049 Pa at 20 °C and 2695 Pa at 25 °C was measured. These values were calculated from the regression equation of 17 individual measurements. The test item is an aqueous solution. The dry solids/water ratio of the tested sample was 17/83 % by weight.
The values recorded at increasing and at decreasing temperatures showed differences at lower temperatures. The test item White liquor may have decomposed during the heating phase. Another explanation for the differences could be either a contamination with substances with lower boiling point or incomplete degassing. The latter is implausible, though, as multiple degassing steps were performed before measurements.
If only the temperatures between 25.0 and 33.4 °C were considered, marginally different vapour pressures would have been calculated (1959 Pa at 20 °C and 2634 Pa at 25 °C). This difference was assessed as uncritical.
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