Weak repulsion by a magnetic field.
Latest Articles
-
Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
-
Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
-
What's In Your Beverage? How to Ensure Quality Control with CO2 Analytical Support
Calibration standards, performance audits, and the FDA's never-ending safety, labeling, and inspection requirements are just the tip of the iceberg when it comes to dealing with the increasingly stringent quality control standards of the beverage industry. As these quality standards become...
-
Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
-
Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
Most Popular
Percent by Mass
100% times the actual yield divided by theoretical yield.
Photochemical Oxidants
Photochemically produced oxidizing agents capable of causing damage to plants and animals.
Common Ion Effect
Suppression of ionization of a weak electrolyte by the presence in the same solution of a strong electrolyte containing one of the same ions as the weak electrolyte.
Radiation
High energy particles or rays emitted during the nuclear decay processes.
Frasch Process
Method by which elemental sulfur is mined or extracted. Sulfur is melted with superheated water (at 170°C under high pressure) and forced to the surface of the earth as a slurry.
Dispersed Phase
The solute-like species in a colloid.
Salt Bridge
A U-shaped tube containing electrolyte, which connects two half-cells of a voltaic cell.
Periodicity
Regular periodic variations of properties of elements with atomic number (and position in the periodic table).
yttrium
A rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y, at. wt.: 88.905, at. no.: 39, sp. gr.: 4.47. Cf."rare-earth element."
Yttrium has a silver-metallic luster and is relatively stable in air unless finely divided. Turnings of the metal, however, ignite in air if their temperature exceeds 400oC. Yttrium oxide is one of the most important compounds of yttrium and accounts for the largest use. It is widely used in making YVO4 europium, and Y2O3 europium phosphors to give the red color in color television tubes.
Spectrochemical Series
Arrangement of ligands in order of increasing ligand field strength.
