Hans von PechmannHans von Pechmann
Common
Rarity: Common
The most frequent rarity: most Wikipedia articles become Commons.
Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.
At a glance
- Class
- Figure
- Domain
- Science and technology
- Knowledge cost
- 2
- Influence
- 3
- Resistance
- 3
- In collections
- Nobody has pulled it yet.
What Wikipedia says
Freiherr Hans von Pechmann (1 April 1850 – 19 April 1902) was a German chemist, renowned for his discovery of diazomethane in 1894. Pechmann condensation and Pechmann pyrazole synthesis.
Excerpt from the Wikipedia article “Hans von Pechmann”, under the CC BY-SA 4.0 license. Read the article on Wikipedia
Image: Unknown author, Public domain, via Wikimedia Commons.
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