New Treatment Method for Dilute Hydrochloric Acid Using Magnesium-Aluminum Oxide

2002 ◽  
Vol 75 (3) ◽  
pp. 595-599 ◽  
Author(s):  
Tomohito Kameda ◽  
Toshiaki Yoshioka ◽  
Miho Uchida ◽  
Yoshinori Miyano ◽  
Akitsugu Okuwaki
Keyword(s):  
Hydrochloric Acid ◽  
Aluminum Oxide ◽  
Dilute Hydrochloric Acid ◽  
Treatment Method ◽  
New Treatment ◽  
Magnesium Aluminum Oxide

New Treatment Methods for Waste Water Containing Chloride Ion Using Magnesium–Aluminum Oxide

2000 ◽  
Vol 29 (10) ◽  
pp. 1136-1137 ◽  
Author(s):  
Tomohito Kameda ◽  
Yoshinori Miyano ◽  
Toshiaki Yoshioka ◽  
Miho Uchida ◽  
Akitsugu Okuwaki
Keyword(s):  
Waste Water ◽  
Aluminum Oxide ◽  
Chloride Ion ◽  
Treatment Methods ◽  
New Treatment ◽  
Magnesium Aluminum Oxide

Treatment of hydrochloric acid with magnesium–aluminum oxide at ambient temperatures

2006 ◽  
Vol 51 (3) ◽  
pp. 272-276 ◽  
Author(s):  
Tomohito Kameda ◽  
Toshiaki Yoshioka ◽  
Tatsunosuke Hoshi ◽  
Miho Uchida ◽  
Akitsugu Okuwaki
Keyword(s):  
Hydrochloric Acid ◽  
Aluminum Oxide ◽  
Ambient Temperatures ◽  
Magnesium Aluminum Oxide

Treatment of gaseous hydrochloric acid with magnesium–aluminum oxide using batch operation

Desalination ◽  
2011 ◽  
Vol 280 (1-3) ◽  
pp. 424-427 ◽  
Author(s):  
Tomohito Kameda ◽  
Naoya Uchiyama ◽  
Toshiaki Yoshioka
Keyword(s):  
Hydrochloric Acid ◽  
Aluminum Oxide ◽  
Batch Operation ◽  
Magnesium Aluminum Oxide

Kinetics of cyclization of S-ethoxycarbonylmethylisothiouronium chloride to 2-imino-4-thiazolidone

1979 ◽  
Vol 44 (3) ◽  
pp. 912-917 ◽  
Author(s):  
Vladimír Macháček ◽  
Said A. El-bahai ◽  
Vojeslav Štěrba
Keyword(s):  
Hydrochloric Acid ◽  
Dilute Hydrochloric Acid ◽  
Base Catalysis ◽  
General Base ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Kinetics Of Formation ◽  
Acid Catalyzed ◽  
Rate Limiting ◽  
Kinetics Of

Kinetics of formation of 2-imino-4-thiazolidone from S-ethoxycarbonylmethylisothiouronium chloride has been studied in aqueous buffers and dilute hydrochloric acid. The reaction is subject to general base catalysis, the β value being 0.65. Its rate limiting step consists in acid-catalyzed splitting off of ethoxide ion from dipolar tetrahedral intermediate. At pH < 2 formation of this intermediate becomes rate-limiting; rate constant of its formation is 2 . 104 s-1.

Synthesis of the semi-rigid analogues of prothiadene and dithiadene as potential antidepressant and antihistamine agents: 11-[2-(Dimethylaminomethyl)cyclohexylidene]-6,11-dihydrodibenzo[b,e]thiepins and 4-[2-(dimethylaminomethyl)cyclohexylidene]-4,9-dihydrothieno-[2,3-c]-2-benzothiepins

1985 ◽  
Vol 50 (5) ◽  
pp. 1078-1088 ◽  
Author(s):  
Zdeněk Polívka ◽  
Jiří Holubek ◽  
Emil Svátek ◽  
Jan Metyš ◽  
Miroslav Protiva
Keyword(s):  
Hydrochloric Acid ◽  
Ir Spectrum ◽  
Title Compound ◽  
Dilute Hydrochloric Acid ◽  
Amino Alcohols ◽  
Geometric Isomers ◽  
Pharmacological Testing

Reaction of dibenzo[b,e]thiepin-11(6H)-one with 2-(dimethylaminomethyl)cyclohexylmagnesium chloride gave a mixture of stereoisomeric amino alcohols IX from which four homogeneous bases (IXa to IXd) were separated by chromatography. Dehydration of these compounds with boiling dilute hydrochloric acid afforded mixtures of racemic geometric isomers of the title compound VII, which were separated by crystallization. To the prevailing less polar base VIIa (E)-configuration was assigned on the basis of the IR spectrum. Using a similar procedure, thieno[2,3-c]-2-benzothiepin-4(9H)-one gave mixture of amino alcohols X from which three homogeneous stereoisomers X-A to X-C were isolated. Their dehydration resulted in both expected racemic geometric isomers VIII-A and VIII-B. Pharmacological testing proved the character of an antidepressant for the semi-rigid analogue of dithiadene VIII.

An alternative method for assaying cerebrospinal fluid protein in the presence of methotrexate.

1988 ◽  
Vol 34 (10) ◽  
pp. 2091-2092 ◽  
Author(s):  
L M Kasper ◽  
W R Moorehead ◽  
T O Oei ◽  
M Markanich
Keyword(s):  
Cerebrospinal Fluid ◽  
Hydrochloric Acid ◽  
Trichloroacetic Acid ◽  
Dilute Hydrochloric Acid ◽  
Constant Amount ◽  
Manual Method ◽  
Turbidimetric Method ◽  
Methotrexate Concentration ◽  
Cerebrospinal Fluid Protein ◽  
Positive Interference

Abstract Therapeutic concentrations of methotrexate can cause significant positive interference in cerebrospinal fluid (CSF) protein values when assayed in the Du Pont aca. Conversely, our modified turbidimetric method, in which trichloroacetic acid (TCA) plus a sample blank containing dilute hydrochloric acid is used in place of TCA, exhibits little or no interference from methotrexate. This was verified by assaying solutions that contained a constant amount of protein (approximately 430 mg/L) and various amounts of methotrexate (0.0-2.3 x 10(-4) mol/L) by both the Du Pont aca and the manual turbidimetric method. As expected, the aca results showed increasing protein values with increasing methotrexate, whereas the manual method gave results approximating the expected protein value irrespective of the methotrexate concentration.

scholarly journals Pulp Revascularization of Immature Permanent Teeth: A Review of the Literature and a Proposal of a New Clinical Protocol

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Mélanie Namour ◽  
Stephanie Theys
Keyword(s):  
Treatment Method ◽  
Permanent Teeth ◽  
Clinical Protocol ◽  
Therapeutic Success ◽  
Immature Teeth ◽  
Triple Antibiotic Paste ◽  
New Treatment ◽  
Near Future ◽  
Pulp Revascularization ◽  
Stimulation Of

Tissue engineering is a growing field. In the near future, it will probably be possible to generate a complete vital tooth from a single stem cell. Pulp revascularization is dependent on the ability of residual pulp and apical and periodontal stem cells to differentiate. These cells have the ability to generate a highly vascularized and a conjunctive rich living tissue. This one is able to colonize the available pulp space. Revascularization is a new treatment method for immature necrotic permanent teeth. Up to now, apexification procedures were applied for these teeth, using calcium dihydroxide or MTA to produce an artificial apical barrier. However, the pulp revascularization allows the stimulation of the apical development and the root maturation of immature teeth. Two pulp revascularization techniques are used in the literature, one using calcium dihydroxide and the second using a triple antibiotic paste. Based on these two different pulp revascularization protocols, which obtain the desired therapeutic success, the literature will be reviewed and analyzed according to the relevance of their choice of materials. Based on the literature, we propose a new relevant protocol and a new mixture of antibiotics.

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