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Document ID (ISN)19643
CIS number 72-2711
ISSN - Serial title 0509-6510 - Prace Centralnego instytutu ochrony pracy
Year 1972
Convention or series no.
Author(s) Kryńska A.
Title Microdetermination of acetic, formic and inorganic acids in air
Original title Oznaczanie śladowych ilości kwasu octowego, mrówkowego oraz kwasów nieorganicznych w powietrzu [in Polish]
Bibliographic information 1972, Vol.22, No.73, p.83-91. 14 ref.
Abstract Described is a colorimetric method using methyl red for determining acetic, formic and hydrochloric acid, which is based on colour change in the acid solution in 50% glycerine in relation to solution pH. Sampling and determination procedures are described in detail. The method is simpler and more sensitive than acidimetric and iodometric techniques; accuracy is 20µg for acetic acid, 5µg for formic acid and 4µg for hydrochloric acid in 5mL of solution. It can be used in the presence of carbon dioxide and can be employed for the determination of other volatile organic acids and certain inorganic acids.
Descriptors (primary) formic acid; determination in air; inorganic acids; acetic acid
Descriptors (secondary) hydrochloric acid; colorimetry; air sampling
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Inorganic acids