Lithium Hydroxide Canister, Command Module, Apollo 11

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Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

The lithium hydroxide canister was designed as a replaceable filter for the command module's environmental control unit (ECU). The ECU provided cooling, water and breathable oxygen for the astronauts’ suits and cabin. Two canisters were present in the oxygen system at all times and were alternately replaced, one every twelve hours. To maintain a safe pure-oxygen environment, the canisters contained lithium hydroxide (LiOH) and charcoal and were covered by a felt cloth barrier. The LiOH within the canister absorbed carbon dioxide, the charcoal eliminated odors, and the felt trapped particles and debris.

This filter was flown and deployed at Mission Elapsed Time 171hrs:35min in the Command Module "Columbia" during the historic Apollo 11 lunar-landing mission in July 1969 and transferred to the Smithsonian in 1970.

Collection Item Long Description:

Inventory Number

A19791599000

Credit Line

Transferred from the National Aeronautics and Space Administration

Manufacturer

Country of Origin

United States of America

Materials

Aluminum, Paint, Plastic, Synthetic Fabric, Adhesive

Dimensions

3-D: 18.4 x 13.3 x 18.4cm, 0.4kg (7 1/4 x 5 1/4 x 7 1/4 in., 13/16lb.)

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Type

SPACECRAFT-Manned-Life Support