Schedule for density-composition tables for aqueous solutions of hydrochloric acid

1987 ◽  
Keyword(s):  
Hydrochloric Acid ◽  
Aqueous Solutions

scholarly journals Determination of Water Activities in Aqueous Solutions of Hydrochloric Acid-Metal Chloride

1984 ◽  
Vol 52 (12) ◽  
pp. 800-806 ◽  
Author(s):  
Hiroshi MAJIMA ◽  
Yasuhiro AWAKURA ◽  
Yasushi TAKESHIMA ◽  
Koji SATO
Keyword(s):  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Metal Chloride

Salts of Sulfated Oleic Acid Amides as Acid Corrosion Inhibitors

2021 ◽  
Vol 625 (3) ◽  
pp. 36-38
Author(s):  
E. K. Aminova ◽  
◽  
V. V. Fomina ◽  
Keyword(s):  
Oleic Acid ◽  
Sulfuric Acid ◽  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Carboxylic Acids ◽  
Ammonium Salt ◽  
Dilute Hydrochloric Acid ◽  
Corrosion Inhibitors ◽  
Acid Corrosion ◽  
Protective Ability

This work is a continuation in a series of studies on the preparation of acid corrosion inhibitors based on carboxylic acids. A method of synthesis of acid corrosion inhibitors based on oleic acid amides has been developed. Several syntheses have been carried out to increase its inhibitory properties. The substances were obtained in several stages. At the first stage, amino alcohols were added to the ОA, then the resulting compounds were sulfonated with sulfuric acid. To expand the field of various inhibitors, reactions with bases are produced. As a result, salts of sulfated amides of oleic acid synthesized with amino nitrates, sulfuric acid and aqueous solutions of bases were formed. To establish the effectiveness of the compounds obtained, the protective ability in dilute hydrochloric acid was evaluated. It is established that some of the obtained substances exhibit the corresponding properties of inhibitors. In this case, the most effective is the ammonium salt of sulfated diethanolamide oleic acid.

PROPERTIES OF CALF THYMUS HISTONE ISOLATED BY THREE DIFFERENT METHODS

1958 ◽  
Vol 36 (1) ◽  
pp. 1-13 ◽  
Author(s):  
L. B. Smillie ◽  
G. C. Butler ◽  
David B. Smith
Keyword(s):  
Nucleic Acid ◽  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Sedimentation Rate ◽  
Principal Components ◽  
Dilute Hydrochloric Acid ◽  
Original Material ◽  
Salting Out ◽  
Calf Thymus ◽  
Two Stages

Histone of calf thymus deoxyribonucleoprotein was isolated by three different methods: (1) Extraction from nucleoprotein solutions with dilute hydrochloric acid. (2) Extraction from cold saline nucleoprotein solutions with ethanol. (3) Salting out part of the histone, followed by removal of the nucleic acid from the remainder as an insoluble lanthanum salt. Similar yields were obtained in all cases. Measurements of fractional solubility, electrophoretic mobility, and sedimentation rate disclosed the presence of two principal components corresponding roughly to those obtained in the two stages of method (3). Alterations of one component were found to take place in aqueous solutions more alkaline than pH 4.0, resulting in the appearance of artifacts some of which sedimented more rapidly, while others sedimented more slowly, than the original material.

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