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EC number: 231-635-3 | CAS number: 7664-41-7
- 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
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the substance is a gas
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Data taken from a published, peer-reviewed handbook.
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Viscosity of the liquified gaseous substance
- GLP compliance:
- not specified
- Type of method:
- other: not stated
- Temp.:
- other: -69.0°C
- Parameter:
- other: cP
- Value:
- 0.475
- Temp.:
- other: -50.0°C
- Parameter:
- other: cP
- Value:
- 0.317
- Temp.:
- other: -40.0°C
- Parameter:
- other: cP
- Value:
- 0.276
- Temp.:
- other: -33.5°C
- Parameter:
- other: cP
- Value:
- 0.255
- Conclusions:
- The viscosity was measured to 0.475, 0.317, 0.276 & 0.255 centiposes at -69, -50, -40 & -33.5 ⁰C respectively.
- Executive summary:
The viscosity of anhydrous ammonia was measured to 0.475, 0.317, 0.276 & 0.255 centiposes at -69, -50, -40 & -33.5 ⁰C respectively.
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Value taken from a published handbook.
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- No methodological data are reported
- GLP compliance:
- no
- Type of method:
- other: No details
- Temp.:
- other: -40.0°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 5
- Remarks on result:
- other: Aqueous ammonia 26%
- Temp.:
- other: -17.7°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 2.8
- Remarks on result:
- other: Aqueous ammonia 26%
- Temp.:
- other: 1.1°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.7
- Remarks on result:
- other: Aqueous ammonia 26%
- Temp.:
- other: 26.7°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.1
- Remarks on result:
- other: Aqueous ammonia 26%
- Temp.:
- other: 48.9°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 0.7
- Remarks on result:
- other: Aqueous ammonia 26%
- Conclusions:
- The viscosity of aqueous ammonia is temperature-dependent
- Executive summary:
The viscosity of aqueous ammonia (26%) is temperature-dependent and is reported to be between 0.7 -5 centipoise (mPa.s) at temperatures of between -40 and 48.9 degrees Celsius. The viscosity at 26.7 degrees Celsius is reported to be 1.1 centipoise (mPa.s)
Referenceopen allclose all
The viscosity was measured to be;
|
Viscosity (cP) |
Temp (⁰C) |
1 |
0.475 |
-69 |
2 |
0.317 |
-50 |
3 |
0.276 |
-40 |
4 |
0.255 |
-33.5 |
The viscosity of aqueous ammonia (26%) is temperature-dependent and is reported to be between 0.7 -5 centipoise (mPa.s) at temperatures of between -40 and 48.9 degrees Celsius. The viscosity at 26.7 degrees Celsius is reported to be 1.1 centipoise (mPa.s).
Description of key information
The substance is a gas at room temperature: this endpoint is not relevant.
Key value for chemical safety assessment
- Viscosity:
- 0.255 mPa · s (dynamic)
- at the temperature of:
- -33.5 °C
Additional information
The data requirement can be waived as the substance is a gas at room temperature and atmospheric pressure. However the viscosity of anhydrous ammonia was measured to 0.475, 0.317, 0.276 & 0.255 centipoises at -69, -50, -40 & -33.5 ⁰C respectively (CRC Handbook).
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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