Ullmann’s Encyclopedia of Industrial Chemistry is the world’s largest and perhaps most renowned reference work in industrial chemistry. It’s first edition was published in German by Professor Fritz Ullmann in 1914.

The third edition, also published in German by Professor Fritz Ullmann, provides great examples of chemical technology in the 1950s.

State-of-the-Art in the 1950s

---

All pictures and information taken from:

• F. Ullmann (Ed.), Enzyklopädie der technischen Chemie, Urban & Schwarzenberg, Berlin.

The current edition is:

• Ullmann’s Encyclopedia of Industrial Chemistry, 7th Edition, Wiley-VCH, Weinheim 2012.

Also see examples of chemical technology in the 1910s and 1930s:

	Chemical Technology of the 1910s, Frank Weinreich, ChemViews, ChemViews Magazine 2014. DOI: 10.1002/chemv.201300126
	Chemical Technology of the 1930s, Frank Weinreich, ChemViews, ChemViews Magazine 2014. DOI: 10.1002/chemv.201400013