|Document ID (ISN)||19643|
|ISSN - Serial title
||0509-6510 - Prace Centralnego instytutu ochrony pracy
|Convention or series no.
||Microdetermination of acetic, formic and inorganic acids in air
||Oznaczanie śladowych ilości kwasu octowego, mrówkowego oraz kwasów nieorganicznych w powietrzu [in Polish]|
||1972, Vol.22, No.73, p.83-91. 14 ref.
||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.
||formic acid; determination in air; inorganic acids; acetic acid
||hydrochloric acid; colorimetry; air sampling
||D - Periodical articles
||Toxic and dangerous substances
|Broad subject area(s)