Substituted dithiomalonamides as inhibitor for the corrosion of AISI 304SS in phosphoric acid‐hydrochloric acid mixture

1993 ◽  
Vol 40 (12) ◽  
pp. 4-7
Author(s):  
A Kumar ◽  
M.M. Singh
Keyword(s):  
Hydrochloric Acid ◽  
Phosphoric Acid ◽  
Acid Mixture

Activated carbon from molasses efficiency for Cr(VI), Pb(II) and Cu(II) adsorption: A mechanistic study

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Sugar Industry ◽  
Chemical Activation ◽  
High Surface ◽  
High Surface Area ◽  
Mechanistic Study ◽  
Acid Mixture ◽  
Maximum Adsorption Capacity ◽  
Good Potential

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.

The physicochemical data of extraction with the mixed solvent of NOA and MIBK from hydrochloric acid route phosphoric acid

2019 ◽  
Vol 131 ◽  
pp. 404-409 ◽  
Author(s):  
Weiqing Li ◽  
Ruichao Peng ◽  
Peng Ye ◽  
Xianhe lv ◽  
Tianrong Zhu ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Phosphoric Acid ◽  
Mixed Solvent ◽  
Physicochemical Data

Pyrimidine Derivatives and Related Compounds, V Synthesis of Some Isoxazolo [2,3-a] pyrimidines. A New Ring System

1977 ◽  
Vol 32 (3) ◽  
pp. 311-314 ◽  
Author(s):  
Mohamed Hilmy Elnagdi ◽  
Ezzat Mohamed Kandeel ◽  
Kamal Usef Sadek
Keyword(s):  
Acetic Acid ◽  
Hydrochloric Acid ◽  
Ethyl Acetoacetate ◽  
Pyrimidine Derivative ◽  
Ring System ◽  
The Other ◽  
Acid Mixture ◽  
Pyrimidine Derivatives ◽  
Benzoyl Isothiocyanates ◽  
Related Compounds

3-Amino-5-phenyl-4-phenylazoisoxazole (1) reacts with ethyl acetoacetate to yield the corresponding ethyl isoxazolylaminocrotonate derivative (2) which could be thermally cyclized into the isoxazolopyrimidine derivative (4). On the other hand, condensation of 1 with ethoxymethylenemalononitrile has resulted in the formation of the aminoethylene derivative (5).Compound 1 reacted with acrylonitrile to yield the isoxazolo[2,3-a]pyrimidine derivative (6). The latter was converted into the corresponding exo derivative (8) by the action of acetic acid-hydrochloric acid mixture.Compound 1 also reacted with methoxycarbonyl-, ethoxycarbomyl- and benzoyl isothiocyanates to yield the isoxazolylthioureas (10a, b) and (11), respectively. The reaction of 2 with acetic acid-hydrochloric acid and with phenylhydrazine is reported.

scholarly journals Accidental intoxication with hydrochloric acid and hydrofluoric acid mixture

2014 ◽  
Vol 1 ◽  
pp. 50-58 ◽  
Author(s):  
Anna Smędra-Kaźmirska ◽  
Maciej Kędzierski ◽  
Maciej Barzdo ◽  
Agnieszka P. Jurczyk ◽  
Stefan Szram ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Hydrofluoric Acid ◽  
Acid Mixture
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