Haemalaun
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Haemalaun is a histological staining solution composed of an aqueous mixture of ammonia hematein and potassium alum, introduced by P. Mayer in 1891 and 1904. It serves as an effective nuclear stain that imparts a blue-violet color without overstaining, commonly used alongside eosin as a counterstain.
Encyclopedia entry (1928–1936)
HAEMALAUN, a mixture of a 1‰ solution of ammonia hematein and a 5% solution of potassium alum (P. Mayer, 1891, 1904). Used in histological technique (see), it is a good nuclear stain. It stains in blue-violet tones and does not overstain. Eosin is used for counterstaining. It is commercially available as a ready-made solution, as well as in powder form soluble in hot water 1:20 (Grübler, Leipzig). Price: Haemalaun sicc. 10 g - 0.50 Mark. Literature - see Haematoxylin.
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Cite this page
“Haemalaun.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/haemalaun/