Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

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Photometric (Colorimetric) Titrator

HSC Science Shop

Humboldt State College, c.1970



The (Under construction)
The current instrument is


The instrument on display is in very good condition. Additional images provide a top-view and a view of the interior of the detector box.

When opened for inspection and photo-documentation (30 December 2007) the detector box had one Eveready™ E 135N "Mercury Energizer" 6.75 V and two Burgess™ Hg-12R 1.35 V "Mercury Activator" mercury batteries in the battery holders

From the Analytical/Physical Chemistry Lab - Exhibit Catalog

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HSTC (1921-34)
HSC 54-73 icon
HSC (1954-1973)
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HSC (1935-1953)

HSC 1956-72 Instrument Collection

© R. Paselk
Last modified 13 August 2010