Iron(II) fumarate

pH

Administrative data

Endpoint:

pH

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Justification for type of information:

Experimental result performed using standard methods of analysis

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

Iron(II) fumarate

EC Number:

205-447-7

EC Name:

Iron(II) fumarate

Cas Number:

141-01-5

Molecular formula:

C4H4O4.Fe

IUPAC Name:

iron(II) fumarate

Test material form:

solid: particulate/powder

Details on test material:

- Name of test material (as cited in study report): Ferrous fumarate
- Molecular formula: C4H4O4.Fe
- Molecular weight : 169.901 g/mol
- Smiles notation : [Fe+2].[O-]C(\C=C\C(=O)[O-])=O
- InChl : 1S/C4H4O4.Fe/c5-3(6)1-2-4(7)8;/h1-2H,(H,5,6)(H,7,8);/q;+2/p-2/b2-1+;
- Substance type:Organic
- Physical state:Solid

Results and discussion

pH value

Key result

pH value:

4.76

Temp.:

31 °C

Concentration:

1 other: %w/v

Remarks on result:

other: Test chemical was acidic in nature

Any other information on results incl. tables

Observation table:

Method Details		Observations
Guideline	OECD 122
Method	Digital pH meter
Principle of method	The mean pH of an aqueous solution or dispersion in water was determined with a pH measurement interface equipped with an appropriate electrode system.
Temperature of 1% w/v test dispersion		31°C
mean pH (RESULT)		4.76
Inference	1. Acidic 2. Basic 3. Neutral	Acidic

Applicant's summary and conclusion

Conclusions:

The pH of 1% w/v dispersion of the test chemical was determined to be 4.76 at 31 °C which indicates that the test chemical was acidic in nature.

Executive summary:

The study was conducted to determine the pH of test chemical in accordance with the OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the test dispersion was determined with the help of digital pH meter. The pH of 1% w/v dispersion of the test chemical was determined to be 4.76 at 31 °C which indicates that the test chemical was acidic in nature.