Johann Rudolf Glauber

Johann Rudolf Glauber (10 March 1604 – 16 March 1670) was a German-Dutch alchemist and chemist. He lived over four hundred years ago and studied chemicals.

One of his big discoveries was in 1625, when he found a compound called sodium sulfate. Because of his work, this substance is still known today as "Glauber's salt," named after him.

Some historians think Glauber might have been one of the first chemical engineers. This means he was among the earliest people to use science to change and create useful materials.

Life

Johann Rudolf Glauber was born in 1604 in Karlstadt am Main. He did not finish school but learned a lot by working and studying on his own, especially about pharmacy. He lived in many places, including Vienna, Salzburg, Giessen, and Amsterdam. He worked making mirrors and later became an Apothecary, making medicines for important people.

In Amsterdam, he started a business making useful chemicals, including something called Glauber's salt. He became wealthy but faced hard times and had money problems in 1649, which made him move to other cities. He married twice and had eight children with his second wife. Later in life, he became very ill and was hurt in a fall, making it hard for him to work. He passed away in Amsterdam in 1670.

Work

Johann Rudolf Glauber studied the chemistry of wine production. He was an apothecary, making and selling medicines, and often helped people for free. Glauber made important discoveries in inorganic chemistry and earned money from his chemical inventions, becoming an early chemical engineer. He improved tools like furnaces and distillation devices.

In 1625, he made strong hydrochloric acid by mixing sulfuric acid with table salt. In 1648, he found a better way to make nitric acid by heating potassium nitrate with strong sulfuric acid. He also discovered sodium sulfate, calling it sal mirabilis or "wonderful salt." This became known as "Glauber's salt" and was used as a safe laxative.

Glauber was the first to observe and describe the chemical garden in 1646. This involved adding ferrous chloride (FeCl₂) crystals to a solution of potassium silicate (K₂SiO₃, water glass). He also created antimony trichloride, arsenic trichloride, tin tetrachloride, and zinc chloride. He wrote around 40 books, including Dess Teutschlands Wohlfahrt (Germany's Prosperity), where he suggested using chemical industries to help Germany’s economy.

Selected publications

Johann Rudolf Glauber wrote many books about his work. Some important books he wrote include:

• Dess Teutschlands Wohlfahrt (1656–1661)
• Operis mineralis Oder Vieler künstlichen und nutzlichen metallischen Arbeiten Beschreibung (1651–1652)
• Opera omnia (Collected Works) (1669)
• De Auri Tinctura sive Auro Potabili Vero (1646)
• Furni Novi Philosophici Oder Beschreibung einer New-erfundenen Distilir-Kunst (1646-1647)

These books talked about minerals, metals, and new ways to make medicines.

External sources

• Biography at the Galileo Project