18 Results for tag Chemistry

What is GHS and when will it be in use?

GHS is an acronym for the Globally Harmonized System of Classification and Labeling of Chemicals. This new naming and labeling system that is in the process of being implemented globally. It was developed by the United Nations and the transition to the new GHS system began in Canada in February of 2015 and will be […] ... Read More

How to Read a Meniscus in Chemistry

Liquids are difficult to measure with the naked eye due to surface tensions causing a meniscus to form on the circumference of the measuring object. In this article, you will learn what a meniscus is, why it forms and how you can accurately and precisely measure the volume of a liquid in laboratory graduated measuring […] ... Read More

Choosing a Laboratory Rotary Evaporator

Understanding the basics of Rotary Evaporators before buying them Rotary evaporation is the process of reducing the volume of a solvent by distributing it as a thin film across the interior of a vessel at elevated temperature and reduced pressure which promotes the quick removal of excess solvent from less volatile samples. Rotary Evaporators are […] ... Read More

What is a Buffer and how does it work?

A buffer is an aqueous solution that can resist significant changes in pH levels upon the addition of small amount of acid or alkali. Each buffer is characterized by a set ‘capacity’ which is defined as the quantity of strong acid or base that must be added to change the pH of one liter of […] ... Read More

What is the Difference between Molarity and Normality?

Molarity and normality are two important and commonly used concentrations in chemistry that are measured  using two different approaches. Both terms are used to indicate quantitative measurement of a substance. If you want to determine the amount of copper ions in a solution, it can be given as a concentration measurement. Molarity and normality are […] ... Read More

What is pH?

Most living things depend on a proper pH level to sustain life. Your body is continually working to maintain the appropriate pHs. The blood flowing through our veins must have a pH between 7.35 and 7.45. Exceeding this range by as little as 1/10th of a pH value could prove fatal. pH is a measure of acids […] ... Read More

Measurement of pH in Plant Tissue

Measurement of pH in Plant Tissue It is often necessary to measure the pH of plant tissue to determine plant health. Where pH values are above 6.4, plants can be prone to insect attacks and specific diseases, thus an optimal pH of 6.4 is desired. Whilst laboratory soil and tissue tests are beneficial tools, they […] ... Read More

A Guide to Chemicals and Chemical Grades

Almost every laboratory uses chemicals in one form or another. Knowing where to buy them, what grade to purchase, and what labelling is required can be confusing. This guide will help you navigate some of those challenges: Chemical Grades Most laboratory chemicals are labelled with a grade which generally indicates the purity of the chemical. […] ... Read More

Plastic Vs Steel Corrosive Cabinets

When you’re faced with the challenge of purchasing a corrosive cabinet, the first question that is likely to spring to your mind is: Do I purchase a plastic cabinet or a metal cabinet? This decision can come down to some very simple factors so rest easy! We’ll help you with your decision and provide you […] ... Read More

The Different Types of Glass in the Lab

Glassware in the form of beakers, petri dishes, vials, burettes and cylinders among others has always been a part of even the smallest laboratories. This is because of the unique inert qualities that allow chemical substances to be placed inside it. However, not all glassware is equal. There are different materials used in making laboratory glass such as […] ... Read More

8 Steps to Handling a laboratory Chemical Spill

Careful handling, storing and good laboratory practices in the use of laboratory chemicals will significantly reduce the occurrence of spills.  However, despite laboratory best practice, chemical spills are not uncommon.  Luckily, most chemical spills can be safely cleaned up by trained laboratory personnel.  When a chemical spill does occur, it is essential that you are […] ... Read More

Why use a non-bleeding pH test strip?

What exactly does it mean when we see non-bleeding test strips? Unlike common indicator papers, non-bleed is a patented technology whereby the test strips are chemically bound to the test pads. This safely prevents the dyes from bleeding into the sample which prevents contamination and allows you to continue with further analysis of the solution. […] ... Read More

What is the difference between Turbidity and TSS?

A common question that arises when studying the clarity or quality of water is what the difference between turbidity and total suspended solids (TSS). They both offer measurements on clarity but what does each test for? And is there any correlation between the two? What is Turbidity? When we refer to Turbidity, we are looking […] ... Read More

3 Things to Consider when Choosing a Centrifuge Tube

Centrifuge tubes range a lot in terms of quality and performance. There are multiple factors that contribute to the overall quality of the tube that we will discuss in this article. It’s important to take into account your own requirements of a tube and then choose a tube that is going to best suit these […] ... Read More

The Difference Between a Lab Oven and a Drying Oven

If you are ever in the market for an oven for your laboratory, you will likely come across standard lab ovens and drying ovens. It can be a common misconception that both these types of ovens are the same but they are actually two different pieces of equipment. Drying Oven A Drying oven is designed […] ... Read More

Difference in Quantitative and Qualitative Filter Papers

Filtration is the mechanical-physical operation which is used for the separation of solids from fluids by interposing a porous media through which only the fluid can pass. Over-sized solids in the fluid are retained on the surface as well as within the matrix of the filter media. Since filter paper is regarded as a depth […] ... Read More

A Guide to Choosing a Pipette Tip

There are an array of pipette tips available in the market and it can become difficult to select an appropriate tip for your application. Not only do you need to find a tip that fits your pipette, you also need to decide on the type of tip and the quality of the tip. We’ve compiled […] ... Read More

Choosing the Right Fume Hood for Your Laboratory

Selecting a fume hood can seem intimidating. When working in a laboratory environment, whether it be educational or industrial, it’s not only important to have a properly functioning fume hood at your disposal and a lab worker that knows how to use it, it’s crucial to have the right one for your intended use to […] ... Read More

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