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Diss Factsheets
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EC number: 931-584-3 | CAS number: 66071-92-9
- 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
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
- Black liquor started boiling at 109 °C and boiled over at 120 °C.
- The boiling temperature of Black liquor was determined using the method according to Siwoloboff.
- The atmospheric pressure during the test was 99.0 kPa.
- Due to the colour of the test substance the fused capillary was not observable during the test and therefore no exact boiling temperature of the test substance could be determined.
- The tested sample contained 47.3 % water/52.7% dry solids
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 109 °C
Additional information
The boiling temperature of Black liquor was determined using the method according to Siwoloboff. The atmospheric pressure during the test was 99.0 kPa (calibrated barometer GPB 230, Petrotest, Germany). The black test substance started boiling at 109 °C and boiled over at 120 °C. Due to the colour of the test substance the fused capillary was not observable during the test and therefore no exact boiling temperature of the test substance could be determined.
Additional information:
Studies of boiling point rise in Black liquor has been reported in several reports. According
to Fricke (1993) boiling point rise (BPR) is the difference in boiling temperature between the solution and the pure solvent when measured at the same pressure. There are variations in boiling point elevation from liquor to liquor, even for liquors originating from the same species, at solids concentrations above about 20 -25% solids. However, the general behaviour has been the same for all liquors. BPR increases with solute concentration and can be as high as 25oC for Black liquor leaving the concentrator. The upper limit on the BPR for dry solids content approaching 100% is approximately 55oC. Residual alkali is the major factor in the variability of Black liquor BPR. The key pulp mill variables are chemical charge/unbleached pulp yield ratio, casuricity, sulfate reduction, sulfidity and chloride content. Changing any of these in a way that reduces the dissolved sodium content will decrease the boiling point rise.According to Moosavifar et.al. (2006) the results from boiling point elevation measurements showed that the value of boiling point elevation does not change drastically with removal of lignin. The addition of NaOH to one of the mixtures caused a slight increase in boiling point elevation and a decrease in viscosity of the liquor.
Additional references:
- Fricke, Internal report, Office of industrial technologies, U.S. department of energy, 1993
- Moosavifar & al., Nordic Pulp and Paper Research Journal, Vol. 21, No 2, 2006
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.
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