Registration Dossier
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EC number: 309-264-4 | CAS number: 100208-62-6
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From April 12th to 25th, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- Aluminum, 2-(2-quinolinyl)-1H-indene-1,3(2H)-dione sulfo derivs. complexes
- EC Number:
- 309-264-4
- EC Name:
- Aluminum, 2-(2-quinolinyl)-1H-indene-1,3(2H)-dione sulfo derivs. complexes
- Cas Number:
- 100208-62-6
- Molecular formula:
- Not applicable
- IUPAC Name:
- Aluminum, 2-(2-quinolinyl)-1H-indene-1,3(2H)-dione sulfo derivs. complexes
- Test material form:
- solid: particulate/powder
Constituent 1
Reagents
- Reagent:
- NaOH solution
Results and discussion
pH value
- pH value:
- ca. 3.01
- Temp.:
- 23.8 °C
- Concentration:
- 1 other: % (w/v)
Acidity or alkalinity
- Acidity or alkalinity:
- acidity
- Value:
- ca. 4.34
Any other information on results incl. tables
Results of pH value measurement
Parameter |
pH |
t (°C) |
Phosphate buffer (pH 7.00 at 25°C, pH 7.02 at 20°C) (Control sample) |
7.02 |
23.3 |
1stmeasurement - Test item (1g/100ml UPW) |
3.01 |
23.8 |
2ndmeasurement - Test item (1g/100ml UPW) |
3.00 |
23.4 |
Results of acidity
Weight in 100 mL (g) |
s (mL) |
Acidity (%) |
Average (%) |
1.00115 |
8.77 |
4.28 |
4.34 |
1.00835 |
8.95 |
4.40 |
c (NaOH) = 0.10032 mol/L
Applicant's summary and conclusion
- Conclusions:
- pH=3.01 at 23.8°C (conc. 1% w/v of test substance)
Acidity (calculated as H2SO4)=4.34% (m/m) - Executive summary:
pH value of 1%(w/v) of the substance dispersion in ultra-pure wateris 3.01 at 23.8 °C.
Acidity of the test item, was determined using standardized sodium hydroxide solution.
Acidity (calculated as H2SO4) is 4.34 % (m/m).
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