Physical Chemistry
We have the space, equipment, installations and devices required to fulfil all physical chemistry study requirements
GLP accredited since 1995, our work Profile includes:
Active substances and chemicals from basic properties (e.g. melting point, vapour pressure) to studies relevant for persistence in the environment (e.g. hydrolysis, water solubility etc)
Products – Plant Protection & Biocides from transport and user risk studies (e.g. flash point, explodability etc) through to shelf life studies
Information on our physical chemistry service portfolio
Our services on active ingredients and chemicals include:
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Our services on Plant Protection Products include:
General Risk Assessment
- Explodability
- Oxidizing properties (solids)
- Flammability (solids)
- Auto-ignition temperatures of solids
- UN-Bowes-Cameron-Cage test
Physico-chemical studies of the formulation (WDG*) to be performed once:
- Development and validation of an analytical method for the determination of the content of active ingredient in the formulation
- Tap density
- Flowability after heat test under pressure
Physico-chemical studies of the formulation (WDG*) to be performed also in shelf life specification before and after storage:
- Appearance (colour and odour) includes a statement of packing stability, content of a.i.
- Content of a.i.
- pH
- Acidity, alkalinity
- Wettability
- Persistent foam
- Dispersibility of WG
- Suspensibility
- Wet sieve test
- Dry sieve analysis
- Dustiness
- Friability and attrition characteristics
*The examples listed here for physical-chemical tests are those performed with one single formulation type (WDG). In reality we can perform many more physical-chemical tests - please contact our specialist for further information
Shelf Life Specification:
- 2 year shelf life specification at ambient temperature
- Accelerated storage stability for 2 weeks at 54°C or other temperatures
Further information
For further information on Physical Chemistry services - please contact Dieter Walter