by Steve Morris | Jul 20, 2018 | Chemistry, Useful Information
Cæsium is a soft, silvery-gold alkali metal with the symbol Cs and atomic number 55. It has a melting point of 28°C (82°F), which means it will be liquid on a warm summer day, and revert to a solid later that night after the ambient temperature cools. Cæsium is just...
by Sysadmin | Jun 8, 2018 | Chemistry, Useful Information
Milk is mostly made up of water, with smaller amounts of fat, protein, minerals, and other compounds. Fats and water don’t usually mix, but in milk the fat and water form an emulsion. It is also a suspension of a multitude of different proteins in water. In milk,...
by Sysadmin | Jun 1, 2018 | Chemistry, Useful Information
The life of a pH electrode is not infinite. A number of factors affect the life span of a pH electrode. The higher the temperature that the electrode is used at, the more extreme the pH, how often the bulb dries out and needs to be rehydrated, how roughly it is used;...
by Sysadmin | Jan 26, 2018 | Chemistry, Useful Information
Laundry pods have featured in the news this week after cases of people eating them in what’s being referred to as the ‘Tide Pod Challenge’. In case you didn’t already realise that this is a pretty terrible idea, this graphic looks at the...
by Sysadmin | Aug 22, 2017 | Chemistry, Useful Information
In 1865, the first U.S. patent for a liquid soap was issued to William Sheppard of New York City (No. 49,561). The patent described his “discovery that by the addition of comparatively small quantities of common soap to a large quantity of spirits of ammonia or...
by Sysadmin | Aug 1, 2017 | Chemistry, Useful Information
In 1774, Joseph Priestley, British Presbyterian minister and chemist, identified a gas which he called “dephlogisticated air” – later known as oxygen. Priestley found that mercury heated in air became coated with “red rust of mercury,”...
