The term “tolerance” originates from the Latin word “tolerare”, meaning to endure, withstand, or bear. In everyday language, it often describes the acceptance of different beliefs, religions, cultures, worldviews, or …
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Polyolefins – Properties, Differences and Applications
The term polyolefins refers to polymers produced from alkenes such as ethene, propene, butene, 2-methylpropene, and 4-methyl-1-pentene. Polyolefins are saturated hydrocarbons characterized by low density, good chemical resistance, low water …
Read more »Deionised and Ultrapure Water: Production and Use
Fully demineralised water, also known as deionised, demi-water, demineralised, distilled, or ultrapure water — all look just like regular tap or spring water but contain very few or no foreign …
Read more »The POP List: Persistent Organic Pollutants
Persistent Organic Pollutants (POPs) are organic compounds that are harmful to humans and animals and degrade only very slowly in the environment. They contaminate air, soil and water and can …
Read more »The Measurement Uncertainty in Temperature Measurements
How Hot Is It Really? The air that surrounds us everywhere affects our comfort and well-being through its temperature. If it is too hot or too cold, we feel uncomfortable. …
Read more »CAS Numbers
The Birth Certificates of Chemical Substances In chemical research – and especially in the development of new chemical products – detailed knowledge of the properties of the raw and auxiliary …
Read more »Heat Shrink Tubing – How It Works and Where It’s Used
If you need to insulate a damaged cable or install new wiring, it’s always a good idea to have a few heat shrink tubes on hand. Thanks to their adaptable …
Read more »Permeability and Barrier Properties of Plastics
Plastics are used in countless applications thanks to their versatile modifications and properties. They can be found in nearly every area of daily life, whether in a car, on a …
Read more »Proper Pipetting
How a Pipette Works In every laboratory, small liquid volumes frequently need to be measured and dispensed with care. For this purpose, pipettes are used. However, there are a few …
Read more »What Are Viscosity and Viscoelasticity?
Honey, water, ketchup and a starch solution represent four liquids with four very different flow behaviours. Honey flows slowly and thickly, but it can be made thinner by gentle heating. …
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