Physico-chemical Properties

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These tests measure physical and chemical properties of substances. They are requisite together with toxicological and ecotoxicological properties for a reliable safety assessment of various chemical substances, pesticides, biocides etc. to human health and the environment, to help predicting toxicological or environmental hazards and behaviour.

The Physico-chemical testing represents an integral part of the standard information requirements and are necessary for the registration of chemical substances, pesticides, biocides etc....Read more...

OECD/EU-Methods

The OECD (Organisation for Economic Cooperation and Development) has developed standardized testing methods as a part of the registration of chemicals which are internationally accepted.

We provide test data for physicochemical properties including melting temperature, boiling point, relative density, vapour pressure, surface tension, water solubility and partition coefficient. Moreover, many further physico-chemical tests are available as well including granulometry, flammability, viscosity etc and screening tests for thermal stability (e.g. explosive properties) using differential scanning calorimetry (DSC), if required.

GuidelineDescription
OECD 101UV-VIS Absorption Spectra
OECD 102/A.1 
Melting Point
OECD 103/A.2
Boiling Point
OECD 109/A.3
Relative Density
OECD 104/A.4
Vapour Pressure (static method / effusion method)
OECD 115/A.5
Surface Tension
OECD 105/A.6
Water Solubility

OECD 107/117/

123/A.8

Partition Coefficient (n-octanol/water)
A.9
Flash Point
A.10
Flammability (solids)
A.11
Flammability (gases)
A.12
Flammability (contact with water)
A.13
Pyrophoric Properties of Solids and Liquids
A.14
Explosive Properties
A.15
Auto Ignition Temperature (liquids and gases)
A.16
Relative Self-Ignition Temperature for Solids
A.17
Oxidising Properties (solids)
A.21
Oxidising Properties (liquids)
OECD 112
Dissociation Constants in Water
OECD 113
Screening Test for Thermal Stability and Stability in Air
OECD 114
Viscosity
OECD 122
Determination of pH, Acidity and Alkalinity
OECD 29
Guidance Document on Transformation/Dissolution of Metals and Metal Compounds in Aqueous Media

UN-Methods

The UN methods are needed for purposes of the CLP Regulation (EC) No. 1272/2008 and the Global Harmonised System (GHS) for the Classification and Labelling as well as the Transport of Chemicals.

The goal of the GHS is to identify the intrinsic hazards found in substances and mixtures and to convey hazard information about these hazards. The criteria for hazard classification are harmonized and now form an integrated hazard communication system (ST/SG/AC.10/30/Rev.6)

GuidelineDescription
H.4Heat accumulation storage test (Chapter 28.4.4)*
N.1
Test method for readily combustible solids (Chapter 33.2)*
N.2Test method for pyrophoric solids (Chapter 33.3)*
N.3
Test method for pyrophoric liquids (Chapter 33.3)*
N.4Test method for self-heating substances (Chapter 33.3)*
N.5
Test method for substances which in contact with water emit flammable gases (Chapter 33.4)*
O.1
Test for oxidizing solids (Chapter 34.4)*
O.2
Test for oxidizing liquids (Chapter 34.4)*
C.1
Metal Corrosivity (Chapter 37.4)*

*UN Recommendations on the Transport of Dangerous Goods. Manual of Tests and Criteria (Fifth revised ed.), New York and Geneva: United Nations, 2009, ISBN 978-92-1-139135-0, ST/SG/AC.10/11/Rev.5

CIPAC-Methods

CIPAC's main objective is the standardization of methods (The CIPAC methods / Collaborative International Pesticides Analytical Council) for the analysis of pesticide products and physico-chemical tests for formulations. This standardization is achieved through the conduct of internationally recognized tests according to accepted procedures.

The CIPAC methods play an important role particularly for the registration and authorization of plant protection products. Depending on the formulation of the product, InterBioTox can perform the required method of analysis for your needs according to GLP compliance.

The analytical methods are mainly based on GC and HPLC techniques and are focused as well as to the physicochemical tests, which may consist of visual observations or of manipulations but, at present, are usually based on instrumental techniques.

GuidelineDescription
CIPAC MT 3Specific gravity, density and weight per millilitre
CIPAC MT 15
Suspensibility of wettable powders in water
CIPAC MT 20
Viscosity
CIPAC MT 32
Determination of conductivity
CIPAC MT 33
Tap density
CIPAC MT 34
Dustability tests after tropical storage
CIPAC MT 36
Emulsion characteristics of emulsifiable concentrates
CIPAC MT 39
Stability of liquid formulations at 0°C
CIPAC MT 41
Dilution stability of herbicide aqueous solutions
CIPAC MT 44
Flow number
CIPAC MT 46
Accelerated storage procedure
CIPAC MT 47
Persistent foaming
CIPAC MT 53
Wettability
CIPAC MT 58
Dust content and apparent density of granular pesticide formulations
CIPAC MT 59
Sieve analysis
CIPAC MT 75
Determination of pH values
CIPAC MT 148
Pourability of suspension concentrates
CIPAC MT 159
Pour and tap bulk density of granular materials
CIPAC MT 160
Spontaneity of dispersion of suspension concentrates
CIPAC MT 161
Suspensibility of aqueous suspension concentrates
CIPAC MT 167
Wet sieving after dispersion of water dispersible granules
CIPAC MT 169
Tap density of water dispersible granules
CIPAC MT 172
Flowability of water dispersible granules after heat test under pressure
CIPAC MT 174
Dispersibility of water dispersible granules
CIPAC MT 179

Dissolution degree and solution stability

CIPAC MT 180
Dispersion stability of suspo-emulsions
CIPAC MT 184
Suspensibility of formulations forming suspensions on dilution with water
CIPAC MT 185
Wet sieve test
CIPAC MT 186
Bulk density
CIPAC MT 191
Acidity or alkalinity of formulations
Technical Monograph n°17 (2nd Edition)
Storage at ambient Temperature 2 years (at 20oC)

FEA-Methods

Aerosol products are present in different industries including cosmetic, technical, household and many more. These products are subject to number of controls both at the pre-production, in-process and post-production stages.

FEA (European Aerosol Federation) has developed guidelines for aerosol testing to ensure a safe use. The following study could be applied by the laboratory of InterBioTox to Biocidal Products and Pesticides with spray applications

GuidelineDescription
FEA 644 EEvaluation of aerosol spray patterns
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