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Document ID (ISN)43288
CIS number 85-170
ISSN - Serial title 0002-8894 - American Industrial Hygiene Association Journal
Year 1984
Convention or series no.
Author(s) Wood G.O.
Title Desorption of TEDA from impregnated respirator and adsorber charcoals
Bibliographic information Sep. 1984, Vol.45, No.9, p.622-625. Illus. 7 ref.
Abstract Evaluation of the feasibility to use charcoal impregnated with triethylenediamine (TEDA) as a sorbent in respirator cartridges or high-volume air-cleaning adsorbers for trapping organic forms of radioiodine in air. Desorption rates of TEDA from impregnated charcoal samples (5% TEDA) were measured from 70 to 100░C. The highest rate extrapolated to 25░C was only 0.12mg/m3, well below the vapour pressure of TEDA (3500mg/m3) and the exposure limit for similar amines (4-40mg/m3). Effects of varying flowrate, bed depth, humidity and increasing the TEDA molecular weight were examined. TEDA-impregnated charcoal could be safe to use only at low temperature and air flow rates.
Descriptors (primary) air purification; triethylenediamine; adsorbents; radioactive substances; activated carbon
Descriptors (secondary) air purifying respirators; radiopharmaceuticals; evaluation of equipment
Document type D - Periodical articles
Subject(s) Personal protection
Broad subject area(s)
Browse category(ies) Heterocyclic compounds
Heating and air conditioning