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EC number: 237-415-3 | CAS number: 13776-88-0
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 2014 - March 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Ministerium für Arbeit, Integration und Soziales des Landes Nordrhein-Westfalen
- Type of method:
- other: mass spectrometry
- Water solubility:
- 4.575 µg/L
- Temp.:
- 21.5 °C
- pH:
- 8
- Remarks on result:
- other: Dissolved aluminium concentrations at loading of 1 mg/L of test item after 24 h (1d)
- Water solubility:
- 13.81 µg/L
- Temp.:
- 21.5 °C
- pH:
- 8
- Remarks on result:
- other: Dissolved aluminium concentrations at loading of 1 mg/L of test item after 168 h (7d)
- Water solubility:
- 35.78 µg/L
- Temp.:
- 21.5 °C
- pH:
- 8
- Remarks on result:
- other: Dissolved aluminium concentrations at loading of 1 mg/L of test item after 672 h (28 d)
- Conclusions:
- Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
Reference
Method validation summary (ICP-OES)
validation parameter |
results |
Comment |
selectivity |
selective wavelength of 167.019 nm for detection and evaluation of Al |
no interferences observed |
linearity |
applied calibration functions were linear |
correlation factor at least 0.999974 |
limit of detection |
0.163 — 0.483 µg Al/L |
|
limit of quantification |
0.489 – 1.451 µg Al/L |
|
accuracy and precision, reproducibility |
mean recovery for diluted CRM TMDA-53.3 (36.3 µg Al/L): 105 ± 2 % (n = 11) |
for concentration range |
accuracy and precision, reproducibility |
mean recovery for diluted CRM TM-15.2 (11.3 µg Al/L): 99.1 ± 3.0 % (n = 11) |
for concentration range |
accuracy and precision, reproducibility |
mean recovery for multielement standard VIII (100 µg Al/L): 102 ± 2 % (n = 11) |
for concentration range |
accuracy and precision, reproducibility |
mean recovery for recalibration standard (75 µg Al/L): 102 ± 2 % (n = 11) |
for low concentration range |
trueness |
fortification of samples: 91.0 — 99.8 % (n = 6) |
|
Test
During the test a background concentration of aluminium in the method blanks was observed. At each sampling point these concentrations were quite similar in the triplicate vessels and duplicate samples per flask. All calculated within- and between vessel variations of these concentrations (except method blank 1 from day 1: within vessel variation of 15.3%) were below 10 % and 20 %, respectively. The OECD Series 29 requires a limit of 20 % and 10 % for the between-vessel and the within-vessel variation, respectively. Therefore, these concentrations can be accepted as the aluminium background in all vessels (test flasks and method blanks) and it is feasible to subtract the mean values per sampling from the measured aluminium concentrations in the vessels containing test item.
Dissolved Al concentrations in test with the loading of 1 mg/L at pH 8 without subtraction the background concentrations.
sample name and day |
Al conc. [µg/L] |
mean Al conc. Per vessel [µg/L] |
SD Al conc. per vessel [µg/L] |
within vessel variation [%] |
mean Al conc. All samples [µg/L] |
SD Al conc. All samples [µg/L] |
between vessel variation [µg/L] |
difference between samplings [%] |
1 a d 1 |
7.627 |
|
|
|
|
|
|
|
1 b d 1 |
7.480 |
7.554 |
0.104 |
1.4 |
|
|
|
|
2a d1 |
7.816 |
|
|
|
|
|
|
|
2b d1 |
7.458 |
7.637 |
0.253 |
3.3 |
|
|
|
|
3a d1 |
7.278 |
|
|
|
|
|
|
|
3b d1 |
6.863 |
7.070 |
0.294 |
4.2 |
7.420 |
0.327 |
4.4 |
|
|
|
|
|
|
|
|
|
|
1a d7 |
18.97 |
|
|
|
|
|
|
|
1 b d7 |
19.63 |
19.30 |
0.47 |
2.5 |
|
|
|
|
2a d7 |
18.69 |
|
|
|
|
|
|
|
2b d7 |
18.62 |
18.65 |
0.05 |
0.2 |
|
|
|
|
3a d7 |
18.36 |
|
|
|
|
|
|
|
3b d7 |
17.36 |
17.86 |
0.70 |
3.9 |
18.60 |
0.75 |
4.0 |
150.7 |
|
|
|
|
|
|
|
|
|
1a d28 |
45.90 |
|
|
|
|
|
|
|
1 b d28 |
45.94 |
45.92 |
0.03 |
0.1 |
|
|
|
|
2a d28 |
48.23 |
|
|
|
|
|
|
|
2b d28 |
47.38 |
47.80 |
0.60 |
1.3 |
|
|
|
|
3a d28 |
45.64 |
|
|
|
|
|
|
|
3b d28 |
45.32 |
45.48 |
0.22 |
0.5 |
46.40 |
1.14 |
2.5 |
149.4 |
Al in method blanks at pH 8 (BW — method blank; 1, 2, 3 — triplicate vessels; a, b – duplicate samples)
sample name and day |
Al conc. [µg/L] |
mean Al conc. Per vessel [µg/L] |
SD Al conc. per vessel [µg/L] |
within vessel variation [%] |
mean Al conc. All samples [µg/L] |
SD Al conc. All samples [µg/L] |
between vessel variation [µg/L] |
difference between samplings [%] |
BW 1 a d1 |
2.406 |
|
|
|
|
|
|
|
BW 1 b d1 |
2.992 |
2.699 |
0.414 |
15.3 |
|
|
|
|
BW 2a d1 |
2.682 |
|
|
|
|
|
|
|
BW 2b d1 |
2.771 |
2.726 |
0.063 |
2.3 |
|
|
|
|
BW 3a d1 |
3.261 |
|
|
|
|
|
|
|
BW 3b d1 |
2.960 |
3.110 |
0.213 |
6.8 |
2.845 |
0.294 |
10.3 |
|
|
|
|
|
|
|
|
|
|
BW 1a d7 |
5.041 |
|
|
|
|
|
|
|
BW 1 b d7 |
4.549 |
4.795 |
0.347 |
7.2 |
|
|
|
|
BW 2a d7 |
4.512 |
|
|
|
|
|
|
|
BW 2b d7 |
4.489 |
4.501 |
0.017 |
0.4 |
|
|
|
|
BW 3a d7 |
5.344 |
|
|
|
|
|
|
|
BW 3b d7 |
4.816 |
5.080 |
0.373 |
7.3 |
4.792 |
0.345 |
7.2 |
68.4 |
|
|
|
|
|
|
|
|
|
BW 1a d28 |
10.65 |
|
|
|
|
|
|
|
BW 1 b d28 |
10.63 |
10.64 |
0.02 |
0.2 |
|
|
|
|
BW 2a d28 |
10.03 |
|
|
|
|
|
|
|
BW 2b d28 |
10.03 |
10.03 |
< 0.01 |
< 0.1 |
|
|
|
|
BW 3a d28 |
10.99 |
|
|
|
|
|
|
|
BW 3b d28 |
11.40 |
11.19 |
0.29 |
2.6 |
10.62 |
0.54 |
5.1 |
121.6 |
Dissolved Al concentrations in test with the loading of 1 mg/L at pH 8 minus mean Al background concentrations
Sample name and day |
Al conc. Mean background [µg/L] |
mean Al conc. Per vessel [µg/L] |
SD Al conc per vessel – mean background [µg/L] |
within vessel variation [%] |
mean Al conc. All samples – mean background [µg/L] |
SD Al conc. All samples – mean background [µg/L] |
between vessel variation [%] |
difference between samplings [%] |
1 a d 1 |
4.782 |
|
|
|
|
|
|
|
1 b d 1 |
4.635 |
4.708 |
0.104 |
2.2 |
|
|
|
|
2a d 1 |
4.970 |
|
|
|
|
|
|
|
2b d1 |
4.612 |
4.791 |
0.253 |
5.3 |
|
|
|
|
3a d1 |
4.433 |
|
|
|
|
|
|
|
3b d1 |
4.017 |
4.225 |
0.294 |
7.0 |
4.575 |
0.327 |
7.2 |
|
|
|
|
|
|
|
|
|
|
1a d7 |
14.17 |
|
|
|
|
|
|
|
1 b d7 |
14.84 |
14.51 |
0.47 |
3.3 |
|
|
|
|
2a d7 |
13.89 |
|
|
|
|
|
|
|
2b d7 |
13.83 |
13.86 |
0.05 |
0.3 |
|
|
|
|
3a d7 |
13.57 |
|
|
|
|
|
|
|
3b d7 |
12.57 |
13.07 |
0.70 |
5.4 |
13.81 |
0.75 |
5.4 |
201.9 |
|
|
|
|
|
|
|
|
|
1a d28 |
35.28 |
|
|
|
|
|
|
|
1 b d28 |
35.32 |
35.30 |
0.03 |
0.1 |
|
|
|
|
2a d28 |
37.61 |
|
|
|
|
|
|
|
2b d28 |
36.76 |
37.18 |
0.60 |
1.6 |
|
|
|
|
3a d28 |
35.02 |
|
|
|
|
|
|
|
3b d28 |
34.70 |
34.86 |
0.22 |
0.6 |
35.78 |
1.14 |
3.2 |
159.0 |
The observed variations within and between test vessels (before and after blank subtraction) and within and between method blanks are in compliance with the test guideline after 24, 168 and 672 hours.
Aluminium recoveries for the test with 1 mg/L ranged from of 99.5 to 107 % (Table 12).Rinsing of filters was not necessary because Al was fully recovered (QA/QC requirements 100 ± 15 %)Description of key information
Dissolved aluminium metaphosphate type B (OECD 105, flask method):
0.0266 g/L at pH 4, 20 °C
0.0315 g/L at pH 7, 20 °C
0.0842 g/L at pH 9, 20 °C
Dissolved aluminium metaphosphate type A (OECD 105, flask method):
0.0073 g/L at pH 4, 20 °C
0.00474 g/L at pH 7, 20 °C
0.0191 g/L at pH 9, 20 °C
Dissolved aluminium concentrations at pH 8.0 at 21.5 °C (OECD 29):
- At loading rate of 1 mg/L test item: 4.575 µg/L after 24 h (1 d)
- At loading rate of 1 mg/L test item: 13.81 µg/L after 168 h (7 d)
- At loading rate of 1 mg/L test item: 35.78 µg/L after 672 h (28 d)
Key value for chemical safety assessment
- Water solubility:
- 0.032 g/L
- at the temperature of:
- 20 °C
Additional information
The water solubility of aluminium metaphosphate, in the sense of the standard method OECD 105, ranges from 0.0191 to 0.0842 g/L and is dependent on the media pH and on the manufacturing process. 0.0315 g/L is relevant to assess chemical safety since it represents the maximum solubility at a neutral pH.
Additionally, solubility of the test item in media simulating environmental conditions had been produced (in accordance with OECD 29) with loadings of 1 mg/L at a pH maximising the transformation/dissolution process (pH 8). Under these conditions, in the long range (28 days) aluminium metaphosphate shows a solubility of 35.78 µg/L.
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