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Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27-10-2016 – 11-11-2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to
Guideline:
other: spectrophotometric analytical method
Principles of method if other than guideline:
The water solubility determination of test item was done as per the OECD cguideline 105 by spectrophotometric analytical method as per OECD 101.
GLP compliance:
no
Type of method:
other: spectrophotometric analytical method
Key result
Water solubility:
4 750.39 mg/L
Conc. based on:
test mat.
Temp.:
28 °C
Remarks on result:
other: the test sunstance is soluble in water.
Details on results:
The test sunstance is soluble in water.

Obseravtionn Table:

Sample stirring

Concentration obtained on
the basis of standard curve

Dilution factor

Solubility value obtained
(mg/L)

24 hour

19.1543 mg/L

200

3830.86 mg/L

48 hour

22.2111 mg/L

200

4442.22 mg/L

72 hour

25.2928 mg/L

200

5058.56 mg/L

Considering the water solubility for 48 hrs and 72 hrs the mean water solubility was calculated as follows:
Mean water solubility value for 48 hour run sample + 72 hour run sample
=(4442.22+5058.56)/2
=4750.39 mg/L

Conclusions:
The water solubility determination of test item 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of in water was determine to be 4750.39 mg/L at 28°C.
Thus the test chemical 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) is considered to be soluble in water.
Executive summary:

The water solubility determination of test item 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of in water was determine to be 4750.39 mg/L at 28°C.

Thus the test chemical 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) is considered to be soluble in water.

Description of key information

The water solubility determination of test item 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of in water was determine to be 4750.39 mg/L at 28°C. Thus the test chemical 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) is considered to be soluble in water.

Key value for chemical safety assessment

Water solubility:
4 750.39 mg/L
at the temperature of:
28 °C

Additional information

The water solubility determination of test item 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of in water was determine to be 4750.39 mg/L at 28°C. Thus the test chemical 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride(CAS No.68391-31-1) is considered to be soluble in water.