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EC number: 200-819-5 | CAS number: 74-88-4
- 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
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 May 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 001
- Report date:
- 2001
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7000 (pH)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- Iodomethane
- EC Number:
- 200-819-5
- EC Name:
- Iodomethane
- Cas Number:
- 74-88-4
- Molecular formula:
- CH3I
- IUPAC Name:
- iodomethane
- Test material form:
- liquid
- Details on test material:
- - Name of test material (as cited in study report): Iodomethane
- Physical state: liquid
- Analytical purity: 99.7%
- Impurities (identity and concentrations): 0.2 % water and <0.1 % methanol
- Composition of test material, percentage of components: not stated
- Isomers composition: not stated
Constituent 1
Reagents
- Reagent:
- water
Results and discussion
pH value
- Key result
- pH value:
- 5.2
- Temp.:
- 25 °C
- Concentration:
- 1 other: % w/w
Any other information on results incl. tables
- The mean pH at 25.0 °C was 5.0. The individual pH values were 4.78 and 4.85 for replicate 1, and 5.45 and 5.45 for replicate 2. A second reading of each suspension was obtained since the pH value spread was wider than expected.
- pH 7.00 buffer checks at the beginning and end of experimentation were 6.96 and 7.03, respectively, indicating adequate instrument stability over the course of experimentation (within target ±0.05).
- After a discussion of the above results with the Sponsor, a second duplicate set of 1 % suspensions was prepared. The Sponsor representative was concerned with the observation of a suspension and not a solution at 1 % w/w level at 25 °C in water. After approximately 2.5 hours of equilibration at 25 °C, the individual pH values of each suspension were 5.05 for replicate 1 and 5.57 for replicate 2. The mean of 5.2 agrees well with 5.0 in the first experiment above.
Applicant's summary and conclusion
- Conclusions:
- Under the conditions of this study the pH of the test material at 25 °C was 5.2.
- Executive summary:
The pH of the test material was determined in accordance with the standardised guideline OPPTS 830. 7000, under GLP conditions.
Under the conditions of this study the pH of the test material at 25 °C was 5.2.
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