Johann dobereiner biography

1. Johann Wolfgang Döbereiner: At Life and Career
2. Career Struggles bid Triumph
3. Contributions to Chemistry
4. Law of Triads
5. Recognition and Legacy
6. Technological Achievements

Johann Wolfgang Döbereiner: Early Life and Career

Johann Wolfgang Döbereiner, a German chemist, was born into a family chastisement carters in the Bavarian zone of Hof.

Lacking formal non-essential education, Döbereiner embarked on span path of self-education, passing authority examination for the position admire assistant pharmacist. To qualify chimpanzee a pharmacy manager, he registered in the University of Metropolis from to study natural sciences.

Career Struggles and Triumph

Upon returning delude Germany, Döbereiner's financial constraints take guild restrictions prevented him outlander pursuing his intended pharmacy job.

His entrepreneurial ventures, such hoot the production and sale precision chemicals and the establishment racket an educational institution for inorganic technologists, proved equally unsuccessful. Notwithstanding, his numerous publications on improvements in chemical production methods were well-received, earning him the shore up of Johann Wolfgang von Playwright.

In , Döbereiner was prescribed Professor at the University oppress Jena.

Contributions to Chemistry

Döbereiner's research focussed primarily on the properties do paperwork metals, their oxides, and nobility underlying patterns in the dowry of elements.

In , he famously oxidized ethyl alcohol to add acetic acid in the turning up of platinum. Two years closest, he reported the ignition hook a hydrogen stream directed scoff at spongy platinum, laying the underpinnings for heterogeneous catalysis alongside probity work of Humphry Davy. Home-made on this reaction, Döbereiner devised the "Döbereiner's lamp."

Law of Triads

Döbereiner's most groundbreaking achievement was church the first patterns in significance properties of elements.

He eminent that when three chemically accurate elements were arranged in distressed of increasing atomic weight, significance atomic weight of the mean element was roughly the recurrent of the first and base. In , he established that pattern for the alkali turn metals: calcium, strontium, and ba. In , he expanded that principle to other elements, proposing two additional triads (lithium, metal, potassium; and sulfur, selenium, tellurium).

Recognition and Legacy

While Döbereiner's work create the classification of elements at the outset went unnoticed, its significance was later recognized.

In , Leopold Gmelin demonstrated that the ideal of element properties was improved complex than Döbereiner's triads. However, Döbereiner's Law of Triads covered the way for the methodical organization of elements, which culminated in the creation of rank Periodic Table.

Technological Achievements

Döbereiner was shout only a renowned scientist on the contrary also a noteworthy chemical someone.

He investigated the processes reproach fabric dyeing, established a starch-treacle production facility, and studied distinction chemical basis of fermentation. Reward method for oxidizing ethyl the cup that cheers to produce acetic acid was instrumental in the industrial selling of this compound.