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Reference
Endpoint:
oxidising properties
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21.05.2013 - 25.05.2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to
Guideline:
other: as mention below
Principles of method if other than guideline:
Redox titrations are based on a reduction-oxidation reaction between an oxidizing agent and a reducing agent. A potentiometer or a redox indicator is usually used to determine the endpoint of the titration. In permanganometry a slight faint persisting pink color signals the endpoint of the titration because of the color of the excess oxidizing agent potassium permanganate
GLP compliance:
no
Specific details on test material used for the study:
- Name of test material : Zinc distearate
- Molecular formula: C36H70O4Zn
- Molecular weight: 632.335 g/mol
- SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Zn+2]
- InChI: 1S/2C18H36O2.Zn/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
- Substance type: Organic
- Physical state: Solid
- Batch no.: L216551704
- Purity: 11.10% (as zinc)
- Physical Appearance: Fine white amorphous powder
- Stability: Stable in recommended storage conditions
- Storage Conditions: 1. Ambient Temp (23 to 27 °C) √ (Store in a cool place. Keep containers tightly closed in a dry and well ventilated place)
Key result
Sample tested:
other: not specified (migrated information) ml or mg of KMnO4
Parameter:
other: ml or mg of KMnO4
Result:
61.29 other: mg/100g
Remarks on result:
other: No other detail available
Key result
Sample tested:
other: not specified (migrated information) ml or mg of KMnO4
Parameter:
other: ml or mg of KMnO4
Result:
61.29 other: mg/100g
Remarks on result:
other: No other detail available
Interpretation of results:
other: poor oxidation potential
Conclusions:
Zinc distearate was determine to be have poor oxidation potential since 61.29 ml of KMnO4 was required for getting the end point of the redox titration for 100 g of Zinc distearate.
Executive summary:

Zinc distearate was determine to be have poor oxidation potential since 61.29 ml of KMnO4 was required for getting the end point of the redox titration for 100 g of Zinc distearate. However, this oxidation potential is not strong enough to classify the chemical as an oxidising solid.

Description of key information

Zinc distearate was determine to be have poor oxidation potential since 61.29 ml of KMnO4 was required for getting the end point of the redox titration for 100 g of Zinc distearate. However, this oxidation potential is not strong enough to classify the chemical as an oxidising solid.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Zinc distearate was determine to be have poor oxidation potential since 61.29 ml of KMnO4 was required for getting the end point of the redox titration for 100 g of Zinc distearate. However, this oxidation potential is not strong enough to classify the chemical as an oxidising solid.

Justification for classification or non-classification

Zinc distearate was determine to be have poor oxidation potential since 61.29 ml of KMnO4 was required for getting the end point of the redox titration for 100 g of Zinc distearate. However, this oxidation potential is not strong enough to classify the chemical as an oxidising solid.