Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

Polarimeter Tubes & Thermometers

Humboldt State College, c. 1960

A variety of sample tubes were used with the Rudolph polarimeter. These precision cells have tube lengths controlled to ± 0.02 mm for accurate determinations of optical rotation.

Number Photo Icon Description Catalog Scan Icon
1
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400 mm plane glass, metal ends - middle cell in photo, cat. no. 7824-C70.

Arthur H. Thomas Co.

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2

400 mm glass with fill/thermometer tubulation, metal ends - upper cell in photo, cat. no. 7824-C30.

Arthur H. Thomas Co.

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3
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200 mm, Landolt type, water-jacketed with fill/thermometer tubulation, metal ends - lower cell in photo, cat. no. 7824-H10.

Arthur H. Thomas Co.

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4

200 mm, fill/thermometer tubulation, metal ends (Arthur H. Thomas Co.), custom aluminum water jacket - upper cell in photo.

HSC shop

 
5

200 mm plane glass, metal ends, cat. no. 7824-C60.

Arthur H. Thomas Co.

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6
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200 mm glass with fill/thermometer tubulation, metal ends - lower cell in photo, cat. no. 7824-F20.

Arthur H. Thomas Co.

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7
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Short-range (0–42°C by 0.2°C) "Clerget" laboratory thermometer for use with polarimeter tubes; tolerance ±0.1° from 17-23°C; 200 mm overal length, 50mm immersion.

Arthur H. Thomas Co.

8
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Short-range (10–32°C by 0.1°C) laboratory thermometer for use with polarimeter tubes.

Cenco (Central Scientific Co.)

From the Analytical/Physical Chemistry Lab - Exhibit Catalog

 HSTC icon
HSTC (1921-34)
HSC 54-73 icon
HSC (1954-1973)
HSC 35-53 icon
HSC (1935-1953)

HSC 1956-72 Instrument Collection

© R. Paselk
Last modified 6 August 2010