Effect of 1,4-butynediol on the corrosion of steels in sulfuric and hydrochloric acids
Samples of steels BSt. 1-KP, St. 35, St. 3, and Kh181OT were investigated over the temperature 20 to 80/sup 0/C for corrosion in 200 g/l sulfuric acid and in hydrochloric acid. A corrosion inhibitor, 1,4-butynediol at 2.5 g/l was also added to these mixtures, simultaneously. A gravimetric method was used for evaluation, and the length of exposure was 2 h. An investigation into the corrosion protection at (80/sup 0/C) afforded to St. 3 in sulfuric acid by the inhibitor indicates that its action is more effective in this medium than it is in hydrochloric acid. A similar relationship is observed for Kh181OT steel, but the inhibitor is more effective. Data for dependence of the corrosion rate and optimum concentration of the inhibitor on temperature, is presented for the various steel samples. The activation energy is reduced in the presence of the inhibitor, indicating chemisorption and a diffusion mechanism. 4 references, 4 figures, 4 tables.
- OSTI ID:
- 6768679
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 56:8; ISSN JAPUA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360105* -- Metals & Alloys-- Corrosion & Erosion
ACTIVATION ENERGY
ALCOHOLS
ALLOYS
AQUEOUS SOLUTIONS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISORPTION
COMPARATIVE EVALUATIONS
CORROSION
CORROSION PROTECTION
CORROSIVE EFFECTS
DATA
DISPERSIONS
EFFICIENCY
ENERGY
EXPERIMENTAL DATA
GLYCOLS
GRAVIMETRIC ANALYSIS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SOLUTIONS
SORPTION
STEELS
SULFURIC ACID
TEMPERATURE DEPENDENCE
TIME DEPENDENCE